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Journal articles on the topic 'Photocatalytic Nanoparticles'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Dulog, Jay C., Romnick Unabia, Jared Deve P. Delicana, et al. "Synthesis and Characterization of AuNP/TiO<sub>2</sub> Hybrid Nanoparticles for Possible Photocatalytic Application." Materials Science Forum 1113 (February 15, 2024): 21–26. http://dx.doi.org/10.4028/p-ogeu80.

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Nanoparticles have been intensively studied due to their unique, size-dependent properties, paving the way for various applications, particularly in photocatalysis. This study aims to determine the physicochemical characteristics of TiO2 and Au nanoparticles and the AuNP/TiO2 hybrid nanoparticles. Employing multiple characterization techniques, the structural and functional parameters were elucidated. The Brunauer-Emmett-Teller (BET) surface area analysis revealed the pore sizes of TiO2 and the Au/TiO2 hybrid nanoparticles as 12 nm and 18 nm, respectively. The Dynamic light scattering (DLS) me

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Chandramohan, Hariini, and Sethu Gunasekaran. "Comparative analysis on the photocatalytic activity of titania and silica nanoparticles using dye discoloration and contact angle test." Scientific Temper 16, no. 01 (2025): 3674–82. https://doi.org/10.58414/scientifictemper.2025.16.1.13.

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This work was done in order to determine the efficiency of TiO₂ and SiO₂ nanoparticles for photocatalytic activity by using contact angle measurements and dye degradation tests. Covering the mechanism of photocatalysis, which means the promotion of a chemical reaction through the aid of light, the focus here is to apply photocatalysis for the elimination of organic pollutants in water, which is now finding more uses in environmental regeneration. Despite TiO₂-and SiO₂-based nanoparticles may be attractive photocatalysts, there are few reports comparing their efficiency. Both samples were prepa

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Chen, Peng, Xiu Li, Zeqian Ren, et al. "Enhancing Photocatalysis of Ag Nanoparticles Decorated BaTiO3 Nanofibers through Plasmon-Induced Resonance Energy Transfer Turned by Piezoelectric Field." Catalysts 12, no. 9 (2022): 987. http://dx.doi.org/10.3390/catal12090987.

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Revealing the charge transfer path is very important for studying the photocatalytic mechanism and improving photocatalytic performance. In this work, the charge transfer path turned by the piezoelectricity in Ag-BaTiO3 nanofibers is discussed through degrading methyl orange. The piezo-photocatalytic degradation rate of Ag-BaTiO3 is much higher than the photocatalysis of Ag-BaTiO3 and piezo-photocatalysis of BaTiO3, implying the coupling effect between Ag nanoparticle-induced localized surface plasmon resonance (LSPR), photoexcited electron-hole pairs, and deformation-induced piezoelectric fie

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Sagir, Muhammad, Muhammad B. Tahir, Jehangir Akram, Muhammad S. Tahir, and Usama Waheed. "Nanoparticles and Significance of Photocatalytic Nanoparticles in Wastewater Treatment: A Review." Current Analytical Chemistry 17, no. 1 (2020): 38–48. http://dx.doi.org/10.2174/1573411016999200607172553.

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Background: In the present situation where there is a water shortage globally, nanoparticles can play a vital role in treating wastewater to make it usable for several processes. Industrial wastewater contains numerous heavy metals and associated wastes that enter our food chain by one means or other. This article provides a review of applications of nanoparticles in wastewater treatment and highlights the significance of photocatalytic nanoparticles in general. Methods: Online journals and books related to wastewater treatment using nanoparticles are reviewed to compile their essentials findi

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Wu, Yinjia. "Synthesis of SrTiO3 nanoparticles for photocatalytic applications." Highlights in Science, Engineering and Technology 116 (November 7, 2024): 9–20. http://dx.doi.org/10.54097/hay5w567.

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Due to the heightened emphasis on environmental protection and the escalating demand for renewable energy sources, the potential applications of strontium titanate (SrTiO3) nanoparticles in photocatalysis have shown remarkable promise. With rapid advancements in technological capabilities, the standards for SrTiO3 photocatalytic materials have soared. Researchers have relentlessly delved into and innovated techniques for preparing strontium titanate powders, striving to yield nanocrystalline SrTiO3 that exhibits specific morphologies, high purity, superior dispersibility, and exceptional photo

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Patterson, Joe P. "(Invited) Towards Single Particle Photocatalysis Measurements Using Electrochemical Liquid Electron Microscopy." ECS Meeting Abstracts MA2025-01, no. 39 (2025): 2042. https://doi.org/10.1149/ma2025-01392042mtgabs.

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Photocatalytic hydrogen generation at the single nanoparticle level has the potential to reveal unprecedented insights into the fundamental mechanisms of hydrogen production. This research aims to understand the photoelectrochemical and photocatalytic properties of individual SrTiO3 nanoparticles, and how these correlate to the bulk behavior, addressing a critical gap in our understanding of nanoscale catalysis. While most single nanoparticle studies are conducted in vacuum environments, these conditions do not reflect the actual environment of H2 production from water splitting. To overcome t

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Sanal, Aparna, D. Kannadassan, and V. Velmurugan. "Photocatalytic Degradation of Rhodamine B by Hand-Made Screen Printed TiO2 Nanoparticles." Advanced Science Letters 24, no. 8 (2018): 6034–37. http://dx.doi.org/10.1166/asl.2018.12242.

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Photocatalytic degradation by titanium dioxide (TiO2) nanoparticles has been studied at textile dyes in water. TiO2 nanoparticles prepared were hand printed on the glass substrate. Textile dye-Rhodamine B added in water is allowed to react with the sample on the glass substrate under UV-VIS illumination for different intervals of time. Effective degradation of hazardous textile dye from aqueous solution by photocatalytic activity of TiO2 nanoparticle was observed. Also, surface features of the screen printed sample were analyzed using Optical Microscopy and morphology by Atomic Force Microscop

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Chi, Fang Li, Guo Dong Zhou, Biao Song, et al. "CoTiO₃ Nanoparticles as a Highly Active Heterogeneous Catalyst of Peroxymonosulfate for the Degradation of Organic Pollutants under Visible-Light Illumination." Journal of Nano Research 42 (July 2016): 73–79. http://dx.doi.org/10.4028/www.scientific.net/jnanor.42.73.

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Visible light responsive CoTiO3 nanoparticles with average diameter of 100 nm were successfully synthesized by sol-gel method and were firstly applied to catalytic activation of peroxymonosulfate (PMS) for degradation of organic pollutants (Rhodamine B (RhB)). Photocatalytic experiments illustrated that CoTiO3 nanoparticles reveal good photocatalytic activity and excellent ability to activate PMS, the synergistic effect of visible light photocatalysis and sulfate radical generated from activated PMS can degradate RhB efficiently. Besides, CoTiO3 nanoparticles maintain their high photocatalytic

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9

Pan, Hanqing, and Michael D. Heagy. "Plasmon-enhanced photocatalysis: Ag/TiO2 nanocomposite for the photochemical reduction of bicarbonate to formic acid." MRS Advances 4, no. 07 (2019): 425–33. http://dx.doi.org/10.1557/adv.2018.677.

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ABSTRACTPlasmonic metallic nanoparticles can significantly enhance the catalytic efficiency of semiconductors via plasmonic photocatalysis. In this study, a hybrid Ag/TiO2 photocatalyst was synthesized and tested for the photochemical reduction of bicarbonate to value-added formic acid. It was found that under solar irradiation, TiO2 is not very efficient, but formate production is significantly increased with the addition of silver nanoparticles. Under 365 nm irradiation, the photocatalytic efficiency of TiO2 is enhanced, but no effect was observed with the addition of silver nanoparticles. U

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Kumari, Pooja, Rajib Saha, Gaurav Saikia, et al. "Synthesis of Mixed-Phase TiO2–ZrO2 Nanocomposite for Photocatalytic Wastewater Treatment." Toxics 11, no. 3 (2023): 234. http://dx.doi.org/10.3390/toxics11030234.

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The use of TiO2 nanoparticles for photocatalysis for the degradation of organic dyes under UV light for wastewater treatment has been widely studied. However, the photocatalytic characteristics of TiO2 nanoparticles are inadequate due to their UV light response and higher band gap. In this work, three nanoparticles were synthesized: (i) TiO2 nanoparticle was synthesized by a sol-gel process. (ii) ZrO2 was prepared using a solution combustion process and (iii) mixed-phase TiO2–ZrO2 nanoparticles were synthesized by a sol-gel process to remove Eosin Yellow (EY) from aqueous solutions in the wast

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Fang, Yimin, Zhimin Li, Yingyan Jiang, et al. "Intermittent photocatalytic activity of single CdS nanoparticles." Proceedings of the National Academy of Sciences 114, no. 40 (2017): 10566–71. http://dx.doi.org/10.1073/pnas.1708617114.

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Semiconductor photocatalysis holds promising keys to address various energy and environmental challenges. Most studies to date are based on ensemble analysis, which may mask critical photocatalytic kinetics in single nanocatalysts. Here we report a study of imaging photocatalytic hydrogen production of single CdS nanoparticles with a plasmonic microscopy in an in operando manner. Surprisingly, we find that the photocatalytic reaction switches on and off stochastically despite the fact that the illumination is kept constant. The on and off states follow truncated and full-scale power-law distri

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Uma, Bharathi K., and Palaniswamy Radha. "Titanium Dioxide Nanoparticles and Their Characteristics: A Review." Trends in Pharmaceuticals and Nanotechnology (e-ISSN: 2582-4457) 2, no. 1 (2020): 48–54. https://doi.org/10.5281/zenodo.3653479.

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<em>Increasing interest in nanotechnology and use of nanoparticle in commercial level is fascinating. This review will focus on titanium dioxide nanoparticle applications. Titanium dioxide nanoparticle has a novel property like photocatalytic activity, mainly used as a catalyst, antibacterial agent and also used as Nano-paint which is used as a self-cleaning agent. Various chemical processes for the synthesis of titanium dioxide nanoparticles have many disadvantages to overcome, all those disadvantages we intend to introduce biosynthesis process with the help of microorganisms. It has been rep

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Alhaidry, Wesam AL H., Farah Aloraibi, Jasim M. Abbas, Hawraa AZ Alhussein, and Ruaa Sattar. "Optimization of the Photodegradation of Metoclopramide Drug using Super Nanoparticles in Aqueous Solutions." INTERNATIONAL JOURNAL OF DRUG DELIVERY TECHNOLOGY 13, no. 04 (2023): 1365–69. http://dx.doi.org/10.25258/ijddt.13.4.38.

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In the present research carry out to remove pharmaceutical pollutants as a model metoclopramide (MCP) drug from an aqueous medium utilizing a photocatalytic degradation method with super nanoparticles called TiO2 nanoparticles (NP). synthesis of TiO2 nanoparticles by utilizing the hydrothermal processes. The physical characterizations of materials by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), thermogravimetric analysis (TGA), and transmission electron microscope (TEM). The results showed that the efficiency of the TiO2 nanoparticle increased by 88.88%. It al

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Li, Haibin, Xiang Luo, Ziwen Long, Guoyou Huang та Ligang Zhu. "Plasmonic Ag Nanoparticle-Loaded n-p Bi2O2CO3/α-Bi2O3 Heterojunction Microtubes with Enhanced Visible-Light-Driven Photocatalytic Activity". Nanomaterials 12, № 9 (2022): 1608. http://dx.doi.org/10.3390/nano12091608.

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In this study, n-p Bi2O2CO3/α-Bi2O3 heterojunction microtubes were prepared via a one-step solvothermal route in an H2O-ethylenediamine mixed solvent for the first time. Then, Ag nanoparticles were loaded onto the microtubes using a photo-deposition process. It was found that a Bi2O2CO3/α-Bi2O3 heterostructure was formed as a result of the in situ carbonatization of α-Bi2O3microtubes on the surface. The photocatalytic activities of α-Bi2O3 microtubes, Bi2O2CO3/α-Bi2O3 microtubes, and Ag nanoparticle-loaded Bi2O2CO3/α-Bi2O3 microtubes were evaluated based on their degradation of methyl orange u

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Chepape, Kgobudi Frans, Thapelo Prince Mofokeng, Pardon Nyamukamba, Kalenga Pierre Mubiayi, and Makwena Justice Moloto. "Enhancing Photocatalytic Degradation of Methyl Blue Using PVP-Capped and Uncapped CdSe Nanoparticles." Journal of Nanotechnology 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/5340784.

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Quantum confinement of semiconductor nanoparticles is a potential feature which can be interesting for photocatalysis, and cadmium selenide is one simple type of quantum dot to use in the following photocatalytic degradation of organic dyes. CdSe nanoparticles capped with polyvinylpyrrolidone (PVP) in various concentration ratios were synthesized by the chemical reduction method and characterized. The transmission electron microscopy (TEM) analysis of the samples showed that 50% PVP-capped CdSe nanoparticles were uniformly distributed in size with an average of 2.7 nm and shape which was spher

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Visa, Maria, Mihaela Cosnita, Macedon Moldovan, Cosmina Andreea Marin, and Maria Mihaly. "Fly Ash Waste Recycling by Pt/TiO2 Incorporation for Industrial Dye Removal." International Journal of Environmental Research and Public Health 18, no. 8 (2021): 3887. http://dx.doi.org/10.3390/ijerph18083887.

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New materials are obtained by transforming fly ash wastes into a valuable composite, with tandem adsorption and photodegradation properties. Mild hydrothermal synthesis, from titanium dioxide, platinum nanoparticles and zeolite materials obtained from a waste, fly ash, as support, was involved in the composite preparation. The platinum nanoparticles extended the photocatalytic activity of the composite in visible range (Eg = 2.1 eV). The efficiency of tandem adsorption and photocatalytic activity of the new composite were determined to be 25% for Bemacid Blau and 43.89% for Bemacid Rot after 3

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Fischer, Kristina, Paulina Schulz, Igor Atanasov, et al. "Synthesis of High Crystalline TiO2 Nanoparticles on a Polymer Membrane to Degrade Pollutants from Water." Catalysts 8, no. 9 (2018): 376. http://dx.doi.org/10.3390/catal8090376.

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Titanium dioxide (TiO2) is described as an established material to remove pollutants from water. However, TiO2 is still not applied on a large scale due to issues concerning, for example, the form of use or low photocatalytic activity. We present an easily upscalable method to synthesize high active TiO2 nanoparticles on a polyethersulfone microfiltration membrane to remove pollutants in a continuous way. For this purpose, titanium(IV) isopropoxide was mixed with water and hydrochloric acid and treated up to 210 °C. After cooling, the membrane was simply dip-coated into the TiO2 nanoparticle d

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Mai Xuan, Truong, Chien Ma Van, Dung Pham Trung, Loan Nguyen Thi To, and Nguyen Bui Duc. "Preparation, characterization and photocatalytic activity of SrTiO3 and Ag2O/SrTiO3 nanomaterials." Vietnam Journal of Catalysis and Adsorption 10, no. 1S (2021): 339–43. http://dx.doi.org/10.51316/jca.2021.125.

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The pure SrTiO3 nanoparticles were synthesized by sol-gel method and Ag2O loaded SrTiO3 (Ag2O/SrTiO3) was prepared by precipitation method. The obtained samples were characterized with powder X-ray diffraction (XRD), transmission electron microscope (TEM) and UV-visible diffuse reﬂection spectrum (DRS). The effect of Ag2O loading on the photocatalytic activity of Ag2O/SrTiO3 nanoparticles for the degradation of methyl orange (MO) as amodel pollutant under visible light irradiation was studied. Compared with pure SrTiO3 nanoparticles, the Ag2O/SrTiO3 nanoparticle displayed higher photocatalytic

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Tito, Israfil Alam, Sahab Uddin, Shafiul Islam, and Snahasish Bhowmik. "Copper Nanoparticle(CuNP’s)Synthesis: A review of the various ways with Photocatalytic and Antibacterial Activity." Oriental Journal Of Chemistry 37, no. 5 (2021): 1030–40. http://dx.doi.org/10.13005/ojc/370503.

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Over the last few decades, several studies have been undertaken to determine the benefits and drawbacks of various copper nanoparticle synthesis processes. Copper nanoparticles have garnered considerable attention because of their remarkable optical and electrical properties. CuNPs' optical, electrical and chemical characteristics are substantially depending on their synthesis procedures. Copper is less expensive than precious metals such as gold and silver, and it also possesses strong photocatalytic and antimicrobial competencies.In this review, synthesis of copper nanoparticles by various m

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Temerov, Filipp, Janne Haapanen, Jyrki M. Mäkelä, and Jarkko J. Saarinen. "Photocatalytic Activity of Multicompound TiO2/SiO2 Nanoparticles." Inorganics 9, no. 4 (2021): 21. http://dx.doi.org/10.3390/inorganics9040021.

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Multicompound TiO2/SiO2 nanoparticles with a diameter of 50–70 nm were generated using a liquid flame spray (LFS) nanoparticle deposition in a single flame. Here, we study the photocatalytic activity of deposited multicompound nanoparticles in gas-phase via oxidation of acetylene into carbon dioxide that gives new insight about the multicompound nanoparticle morphology. A small addition of SiO2 content of 0.5%, 1.0% and 3.0% significantly suppressed the photocatalytic activity by 33%, 44% and 70%, respectively, whereas 5.0% SiO2 addition completely removed the activity. This may be due to a fo

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Nedelkovski, Vladan, Milan Radovanović, Dragana Medić, et al. "Enhancing Wastewater Treatment Through Python ANN-Guided Optimization of Photocatalysis with Boron-Doped ZnO Synthesized via Mechanochemical Route." Processes 13, no. 7 (2025): 2240. https://doi.org/10.3390/pr13072240.

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This study explores the enhanced photocatalytic performance of boron-doped zinc oxide (ZnO) nanoparticles synthesized via a scalable mechanochemical route. Utilizing X-ray diffraction (XRD) and scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS), the structural and morphological properties of these nanoparticles were assessed. Specifically, nanoparticles with 1 wt%, 2.5 wt%, and 5 wt% boron doping were analyzed after calcination at temperatures of 500 °C, 600 °C, and 700 °C. The obtained results indicate that 1 wt% B-ZnO nanoparticles calcined at 700 °C show superior pho

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Huang, Bin, Wei Liu, Kun Chao, et al. "Surface catalytic effect of Ag nanoparticles and influence of dissolved oxygen on photocatalytic reduction of nitrate." RSC Advances 15, no. 11 (2025): 8657–62. https://doi.org/10.1039/d5ra00782h.

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K. Valliyammal and R. Sakthi Sudar Saravanan. "ZnSnS Nanoparticles Synthesized by Simple SMI Technique for Photocatalytic Application." Journal of Environmental Nanotechnology 13, no. 3 (2024): 123–32. http://dx.doi.org/10.13074/jent.2024.09.242764.

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Photocatalysis, driven by semiconductor nanoparticles under visible or ultraviolet light, has emerged as a powerful and sustainable approach for environmental remediation and clean energy production. In this study, we investigate the photocatalytic potential of tin (0, 2, 4, 6, 8, 10) mole % alloyed with zinc sulfide (ZnSnS) nanoparticles as efficient catalysts for various environment and energy-related applications. ZnSnS nanoparticles were produced via a simple microwave irradiation technique. Comprehensive structural characterization through X-ray diffraction (XRD), FESEM, EDAX and HRTEM co

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Kuriakose, Sini, Vandana Choudhary, Biswarup Satpati, and Satyabrata Mohapatra. "Enhanced photocatalytic activity of Ag–ZnO hybrid plasmonic nanostructures prepared by a facile wet chemical method." Beilstein Journal of Nanotechnology 5 (May 15, 2014): 639–50. http://dx.doi.org/10.3762/bjnano.5.75.

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We report the synthesis of Ag–ZnO hybrid plasmonic nanostructures with enhanced photocatalytic activity by a facile wet-chemical method. The structural, optical, plasmonic and photocatalytic properties of the Ag–ZnO hybrid nanostructures were studied by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), photoluminescence (PL) and UV–visible absorption spectroscopy. The effects of citrate concentration and Ag nanoparticle loading on the photocatalytic activity of Ag–ZnO hybrid nanostructures towards sun-light driven degradation

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Lee, Hyein, Sung-Soo Kim, Suk Ho Bhang, and Taekyung Yu. "Facile Aqueous-Phase Synthesis of Stabilizer-Free Photocatalytic Nanoparticles." Catalysts 11, no. 1 (2021): 111. http://dx.doi.org/10.3390/catal11010111.

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One of the challenges of using nanoparticles as catalysts is the presence of reaction-disturbing stabilizers that surround the nanoparticle surface. In this report, we demonstrate a method to synthesize stabilizer-free bismuth oxychloride (BiOCl) nanoparticles to increase photocatalytic activity. This synthesis method is remarkably simple, involving only BiCl3 and deionized water. After heating an aqueous solution containing BiCl3, plate-shaped BiOCl nanoparticles were formed. The stabilizer-free BiOCl nanoplates exhibited higher photocatalytic activities compared to polyvinylpyrrolidone- and

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Choudhary, Tripta, Vikas Beniwal, Pooja Nehra, and Deepak Singhwal. "Photocatalytic Treatment of MB Dye Using ZnO Nanoparticles." ECS Transactions 107, no. 1 (2022): 16213–21. http://dx.doi.org/10.1149/10701.16213ecst.

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The present study revealed the synthesis of zinc oxide nanoparticles by wet chemical co-precipitation process and were characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), UV-Vis spectroscopy, and photocatalysis for Methylene Blue (MB) dye degradation. The crystallite size of the ZnO nanoparticles calculated from XRD using Debye Scherrer Formula is 36.27 nm. The size variation of the ZnO nanoparticles is due to the difference in annealing temperature and precursors. The FTIR spectra confirms the formation of ZnO nanoparticle. From UV-Vis spectra of ZnO nano

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Fadliah, Fadliah, Indah Raya, Ahyar Ahmad, et al. "Synthesis and Characterization of Nickel Nanoparticles: Biological and Photocatalytic Properties." Indonesian Journal of Chemistry 25, no. 1 (2025): 266. https://doi.org/10.22146/ijc.90034.

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The potential uses of ecologically benign nickel nanoparticle manufacturing in various sectors, such as biomedicine, energy storage, and catalysis, have garnered much interest. This paper covers green approaches to nickel nanoparticle manufacturing, which integrate natural substances as stabilizing and reducing agents with eco-friendly processes. Phytochemicals derived from bacteria, microorganisms, and plant leaf extracts can convert nickel ions (Ni2+) into nickel nanoparticles. Room temperature is used for the synthesis procedure, and neither dangerous compounds nor unusual reaction conditio

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Martins, Pedro, Sandro Kappert, Hoai Nga Le, et al. "Enhanced Photocatalytic Activity of Au/TiO2 Nanoparticles against Ciprofloxacin." Catalysts 10, no. 2 (2020): 234. http://dx.doi.org/10.3390/catal10020234.

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In the last decades, photocatalysis has arisen as a solution to degrade emerging pollutants such as antibiotics. However, the reduced photoactivation of TiO2 under visible radiation constitutes a major drawback because 95% of sunlight radiation is not being used in this process. Thus, it is critical to modify TiO2 nanoparticles to improve the ability to absorb visible radiation from sunlight. This work reports on the synthesis of TiO2 nanoparticles decorated with gold (Au) nanoparticles by deposition-precipitation method for enhanced photocatalytic activity. The produced nanocomposites absorb

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Suhaimi, Nurul Amanina A., Cristina Pei Ying Kong, Nurulizzatul Ningsheh M. Shahri, Muhammad Nur, Jonathan Hobley, and Anwar Usman. "Dynamics of Diffusion- and Immobilization-Limited Photocatalytic Degradation of Dyes by Metal Oxide Nanoparticles in Binary or Ternary Solutions." Catalysts 12, no. 10 (2022): 1254. http://dx.doi.org/10.3390/catal12101254.

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Photocatalytic degradation employing metal oxides, such as TiO2 nanoparticles, as catalysts is an important technique for the removal of synthetic dyes from wastewater under light irradiation. The basic principles of photocatalysis of dyes, the effects of the intrinsic photoactivity of a catalyst, and the conventional non-fundamental factors are well established. Recently reported photocatalysis studies of dyes in single, binary, and ternary solute solutions opened up a new perspective on competitive photocatalytic degradation of the dyes. There has not been a review on the photocatalytic beha

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Yoshida K. "Role of Nanoparticle Size in the Photocatalytic Degradation of Pollutants." Journal of Chemistry 3, no. 2 (2024): 12–20. http://dx.doi.org/10.47672/jchem.2405.

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Purpose: The aim of the study was to assess the role of nanoparticle size in the photocatalytic degradation of pollutants. Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries. Findings: The study indicated that smaller nanoparticles exhibit a higher

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Boufi, Sami, Soraa Bouattour, Ana Maria Ferraria, et al. "Cotton fibres functionalized with plasmonic nanoparticles to promote the destruction of harmful molecules: an overview." Nanotechnology Reviews 8, no. 1 (2019): 671–80. http://dx.doi.org/10.1515/ntrev-2019-0058.

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AbstractSelf-decontaminating cotton fabrics were designed, produced and characterized aiming at the decomposition of harmful molecules namely chemical warfare agents (CWAs) by photocatalysis under day light or indoor illumination. This was achieved through the creation of a hybrid organic-inorganic nanostructured textile composed of a thin layer of TiO2 nanoparticles (NPs) generated in situ and chemically immobilised on the cellulose chains of cotton fibres. TiO2 NPs were converted into anatase by a hydrothermal procedure at low temperature around 100°C. The fabrics covered with TiO2 nanoparti

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Zhuang, Xiaoxuan, Xing Li, Yanling Yang, et al. "Enhanced Sulfamerazine Removal via Adsorption–Photocatalysis Using Bi2O3–TiO2/PAC Ternary Nanoparticles." Water 12, no. 8 (2020): 2273. http://dx.doi.org/10.3390/w12082273.

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The presence of sulfonamides (SAs) in water has received increasing attention due to the risk to ecosystems. The adsorption and photocatalysis performance for sulfamerazine (SMZ) of Bi2O3–TiO2 supported on powdered activated carbon (Bi2O3–TiO2/PAC) nanoparticles was evaluated. The amount of doped Bi2O3 not only influenced the photocatalytic performance but also impacted the adsorption capacity. The adsorption mass transfer mechanism of Bi2O3–TiO2/PAC was elucidated and is further discussed in combination with the photocatalytic mechanism. It was indicated that Bi2O3–TiO2/PAC(10%–700 °C) perfor

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Qasim, Rubina, Kousar Balqees, Amna Nasir, et al. "Nanoparticle-Enhanced Photocatalysis for Advanced Wastewater Treatment: Mechanistic Insights, Performance Evaluation, and Sustainable Applications." Scholars Journal of Engineering and Technology 13, no. 03 (2025): 187–98. https://doi.org/10.36347/sjet.2025.v13i03.004.

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A state-of-the-art method for advanced wastewater treatment, nanoparticle-enhanced photocatalysis has shown great promise in breaking down organic pollutants, heavy metals, and microbiological contaminants. The basic processes of photocatalysis are examined in this overview, with a focus on how nanoparticles enhance light absorption, charge separation, and reactive species production. The catalytic performance of many nanomaterials, such as TiO₂, ZnO, and carbon-based composites, is investigated, emphasizing surface functionalization, heterojunction formation, and doping as ways to improve pho

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Ranjan, Ravi, Durga Gupta, and Madhulata Shukla. "Green synthesis of silver nano-catalyst using ionic liquid and their photocatalytic application to the reduction of p-nitrophenol." European Journal of Chemistry 14, no. 3 (2023): 316–22. http://dx.doi.org/10.5155/eurjchem.14.3.316-322.2436.

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Ionic liquids (ILs) carrying special properties can act as electronic as well as steric stabilisers by preventing nanoparticle (NP) growth and NP aggregation. The effect of visible light on the catalytic properties of silver nanoparticles is a hot topic of extensive research nowadays. The present report demonstrates the current developments in the green synthesis of silver nanoparticles in ionic liquids and a detailed study of the room-temperature catalytic and photocatalytic reduction of p-nitrophenol (PNP) to p-aminophenol (AP). The Ag nanoparticles (AgNPs) functionalised by ionic liquids ar

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Sree Pathi, Subash Nambiar, Noraziah Mohamad Zin, Nurul Amira Abd Rahim, Nur Faizah Abu Bakar, and Kon Ken Wong. "Antimicrobial Property of Photocatalytic Nanoparticles-Coated Personal Protective Equipment (PPE) on Bacteria and Fungi." Sains Malaysiana 52, no. 10 (2023): 2931–42. http://dx.doi.org/10.17576/jsm-2023-5210-15.

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Photocatalytic nanoparticles are new applications that can be used as coatings on surfaces through a photocatalytic process that reacts in the presence of chemical catalysts and light. The resulting reactive oxygen species (ROS) would damage pathogenic components and result in antimicrobial effects. This study was conducted to evaluate the antimicrobial properties of photocatalytic nanoparticles on personal protective equipment (PPE), namely surgical gowns and masks. Antimicrobial testing of photocatalytic nanoparticles against PPE inoculated with pathogens was carried out. The growth log redu

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Ni, Zilin, Fan Dong, Hongwei Huang, and Yuxin Zhang. "New insights into how Pd nanoparticles influence the photocatalytic oxidation and reduction ability of g-C3N4 nanosheets." Catalysis Science & Technology 6, no. 16 (2016): 6448–58. http://dx.doi.org/10.1039/c6cy00580b.

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Gatou, Maria-Anna, Nefeli Lagopati, Ioanna-Aglaia Vagena, Maria Gazouli, and Evangelia A. Pavlatou. "ZnO Nanoparticles from Different Precursors and Their Photocatalytic Potential for Biomedical Use." Nanomaterials 13, no. 1 (2022): 122. http://dx.doi.org/10.3390/nano13010122.

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Semiconductor photocatalysts, particularly ZnO nanoparticles, were synthesized via the precipitation method using four different precursors (zinc acetate/zinc nitrate/zinc sulfate/zinc chloride) and compared, according to their optical, structural, photocatalytic, and anticancer properties. The materials were characterized via X-ray Diffraction method (XRD), micro-Raman, Fourier Transform Infrared Spectroscopy (FT-IR), Brunauer–Emmett–Teller (BET), Dynamic Light Scattering (DLS), and Field Emission Scanning Electron Microscope (FESEM) analysis. Photocatalysis was conducted under UV and visible

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Othman, Siti Hajar, Suraya Abdul Rashid, Tinia Idaty Mohd Ghazi, and Norhafizah Abdullah. "Effect of Postdeposition Heat Treatment on the Crystallinity, Size, and Photocatalytic Activity ofTiO2Nanoparticles Produced via Chemical Vapour Deposition." Journal of Nanomaterials 2010 (2010): 1–10. http://dx.doi.org/10.1155/2010/512785.

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Titanium dioxide (TiO2) nanoparticles were produced using chemical vapour deposition (CVD) at different deposition temperatures (300–700°C). All the samples were heat treated at their respective deposition temperatures and at a fixed temperature of 400°C. A scanning electron microscope (SEM), a transmission electron microscope (TEM), and X-ray diffraction (XRD) were used to characterize the nanoparticles in terms of size and crystallinity. The photocatalytic activity was investigated via degradation of methylene blue under UV light. The effects of post deposition heat treatment are discussed i

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Chelaramani, K., R. Varshney, and A. Bhardwaj. "PHOTOCATALYTIC AND ANTIBACTERIAL ACTIVITIES OF TiO2 AND SILVER AND ZINC DOPED TiO2 NANOPARTICLES." International Journal of Engineering Technologies and Management Research 4, no. 12 : SE (2017): 92–97. https://doi.org/10.5281/zenodo.1163036.

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<strong><em>The TiO<sub>2</sub> and Ag and Zn doped TiO<sub>2</sub> nanoparticles were synthesized by sol-gel method.</em></strong><strong><em>The sol-gel method is one of the versatile method to prepare doped and co-doped nanoparticles. sol gel method has emerged as simpler and better option than physical and chemical procedures as it is fast, clean and eco-friendly alternative that does not involve any costly instruments .</em></strong><strong><em>Synthesis of doped and co-doped nanoparticles having good photocatalytic activity have great potential for the degradation of dye. We have tried t

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Eleen Dayana Mohamed Isa, Kamyar Shameli, Nurfatehah Wahyuny Che Jusoh, Siti Nur Amalina Mohamad Sukri, and Nur’Afini Ismail. "Photocatalytic Degradation with Green Synthesized Metal Oxide Nanoparticles – A Mini Review." Journal of Research in Nanoscience and Nanotechnology 2, no. 1 (2021): 70–81. http://dx.doi.org/10.37934/jrnn.2.1.7081.

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Water pollution is one of the major problems faced by mankind worldwide. With the increase of populations and urbanization, the natural water resources are under great threat due to the release of untreated effluent. An alternative treatment method, photocatalysis, emerged as a promising solution. Photocatalysis process utilizes photosensitive catalyst to degrade the pollutant and one of the most common catalyst being used is metal oxide. To increase the photocatalytic activity, nanosized metal oxide being used instead of its bulk form. In these recent years, metal oxide nanoparticles producti

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Zheng, Fangyuan, Pedro M. Martins, Joana M. Queirós, et al. "Size Effect in Hybrid TiO2:Au Nanostars for Photocatalytic Water Remediation Applications." International Journal of Molecular Sciences 23, no. 22 (2022): 13741. http://dx.doi.org/10.3390/ijms232213741.

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TiO2:Au-based photocatalysis represents a promising alternative to remove contaminants of emerging concern (CECs) from wastewater under sunlight irradiation. However, spherical Au nanoparticles, generally used to sensitize TiO2, still limit the photocatalytic spectral band to the 520 nm region, neglecting a high part of sun radiation. Here, a ligand-free synthesis of TiO2:Au nanostars is reported, substantially expanding the light absorption spectral region. TiO2:Au nanostars with different Au component sizes and branching were generated and tested in the degradation of the antibiotic ciproflo

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Zheng, Fangyuan, Pedro M. Martins, Joana M. Queirós, et al. "Size Effect in Hybrid TiO2:Au Nanostars for Photocatalytic Water Remediation Applications." International Journal of Molecular Sciences 23, no. 22 (2022): 13741. https://doi.org/10.3390/ijms232213741.

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TiO<sub>2</sub>:Au-based photocatalysis represents a promising alternative to remove contaminants of emerging concern (CECs) from wastewater under sunlight irradiation. However, spherical Au nanoparticles, generally used to sensitize TiO<sub>2</sub>, still limit the photocatalytic spectral band to the 520 nm region, neglecting a high part of sun radiation. Here, a ligand-free synthesis of TiO<sub>2</sub>:Au nanostars is reported, substantially expanding the light absorption spectral region. TiO<sub>2</sub>:Au nanostars with different Au component sizes and branching were generated and tested i

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Khiari, Mouna, Mickaël Gilliot, Michaël Lejeune, Florica Lazar, and Aomar Hadjadj. "Effects of Ag Nanoparticles on Zinc Oxide Photocatalytic Performance." Coatings 11, no. 4 (2021): 400. http://dx.doi.org/10.3390/coatings11040400.

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We used a sol–gel spin coating technique to synthesize nanocomposite thin films based on zinc oxide (ZnO) loaded with silver nanoparticles (NPs). We tested these ZnO/Ag NPs photocatalysts, with a thickness of about 100 nm, for the photodegradation of the indigo carmine dye solution. The study focused on the effects of Ag NPs on the ZnO matrix as well as the impact of their concentration on the photocatalytic performance of the nanocomposite. The study also highlighted the high stability of the photocatalytic performance of these nanocomposites. This work is a contribution in the search for non

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Kareem, Baraa Aqeel, and Ban Mazin Alshabander. "Influence of pH on the Photocatalytic Activity of Ag/Fe<sub>2</sub>O<sub>3 </sub>and S/ Fe<sub>2</sub>O<sub>3</sub> Nanoparticles by Methyl Blue Dye Degradation." Iraqi Journal of Physics 23, no. 2 (2025): 80–88. https://doi.org/10.30723/ijp.v23i2.1366.

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In this research, iron oxide (Fe2O3) nanoparticles were doped with 5% mol of metallic material silver (Ag) and non-metallic material sulfur (S) by a wet impregnation process. Scanning electron microscopy (SEM) was used to determine the shape and arrangement of the crystals. UV-Vis spectroscopy was used to study the photocatalytic degradation of dye pollutants by measuring the absorbance spectra of the Ag/Fe2O3 and S/Fe₂O₃ nanoparticle samples. The objective of this study was to investigate the impact of pH on the photocatalytic activity of nanoparticles. The pH of a 5ppm solution of methylene

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Al-Ghamdi, S. A., Mohammed S. Al-Qarni, Fahad A. Al-Shehri, et al. "Photocatalytic degradation of potassium permanganate using zinc oxide nanoparticles." Digest Journal of Nanomaterials and Biostructures 16, no. 3 (2021): 889–98. http://dx.doi.org/10.15251/djnb.2021.163.889.

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In this work, zinc oxide (ZnO) nanoparticles were prepared by the solid-solid reaction technique. The photocatalytic efficiency, using a ZnO nanoparticle as a catalyst, has been shown by investigating the degradation rate of an extreme quantity of potassium permanganate (KMnO4) in wastewater. The KMnO4 dye reveals a degradation rate of 47% by the irradiation of UV compared to less than 5% for methylene blue using the same experiment conditions by ZnO nanoparticles as a catalyst. Also, various kinetics models such as the pseudo-first-order, the pseudo-second-order, and the intra-particle diffus

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Uddin, M. T., Y. Sultana, and M. A. Islam. "Nano-sized SnO₂ Photocatalysts: Synthesis, Characterization and Their Application for the Degradation of Methylene Blue Dye." Journal of Scientific Research 8, no. 3 (2016): 399–411. http://dx.doi.org/10.3329/jsr.v8i3.27524.

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In the present study, tin oxide (SnO2) nanoparticles were prepared by precipitation method using tin tetrachloride (SnCl4) as precursor and ammonia solution as precipitating agent followed by calcination at 400 ºC for 2 h. As-prepared SnO2 particles were characterized by X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR). The powder XRD results revealed that the SnO2 nanoparticles had a typical tetragonal rutile (cassiterite) structure and the average crystallite size calculated by using the Debye Scherrer equation was found to be approximately 5.1 nm. The photocatalytic activity o

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Portillo-Cortez, Karina, Uriel Caudillo-Flores, Perla Sánchez-López, Elena Smolentseva, David Dominguez, and Sergio Fuentes-Moyado. "Photocatalytic Activity of Ag Nanoparticles Deposited on Thermoexfoliated g-C3N4." Nanomaterials 14, no. 7 (2024): 623. http://dx.doi.org/10.3390/nano14070623.

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The limited access to fresh water and the increased presence of emergent pollutants (EPs) in wastewater has increased the interest in developing strategies for wastewater remediation, including photocatalysis. Graphitic carbon nitride (g-C3N4) is a 2D non-metal material with outstanding properties, such as a 2.7 eV bandgap and physicochemical stability, making it a promising photocatalyst. This work reports the process of obtaining high-surface-area (SA) g-C3N4 using the thermal-exfoliation process and the posterior effect of Ag-nanoparticle loading over the exfoliated g-C3N4 surface. The phot

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Akila, A., S. Chandra Mohan, S. Karuppusamy, and K. Jothivenkatachalam. "Encapsulation of CdS/ZnO Hybrid Nanoparticles in Zeolite Y and its Photocatalytic Studies." Nano Hybrids and Composites 17 (August 2017): 246–55. http://dx.doi.org/10.4028/www.scientific.net/nhc.17.246.

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The recent development of nanoparticles in commercial media has great attention due to uniformity and stability of the materials. In our present investigation cadmium sulfide (CdS), a direct bandgap semiconductor material has well defined optoelectronic properties in the applications of photocatalysis, photoelectrocatalytic and nonlinear optics. Zeolite which offers a perfect host material for the production of highly uniform nanoparticles with apparently circulated provisions and inhibiting the aggregation of nanoparticles and also helps in the protection from the attack by water and other re

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Bagyalakshmi, S., R. Uthrakumar, S. Aravindan, K. Parasuraman, and K. Kaviyarasu. "Synthesis and characterization of MoSe2 doped Co nanoparticles for advanced photocatalytic activity using MB dye." Digest Journal of Nanomaterials and Biostructures 19, no. 4 (2024): 1701–9. http://dx.doi.org/10.15251/djnb.2024.194.1701.

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MoSe2-infused the sol-gel process was used to create Co nanoparticles, which will aid in photocatalytic degradation. Reducing the usage of hazardous chemicals and creating a green, ecologically friendly process for the production of both pure and doped MoSe2 nanoparticles were the primary goals of this effort. Furthermore, the impact of co-doping on photocatalysis activity was noted. Using transmission electron microscopy (TEM) analysis, ultraviolet–visible spectroscopy, the manufactured particles were examined using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) wa

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Guzmán-Carrillo, H. R., E. Jiménez Relinque, A. Manzano-Ramírez, M. Castellote, and M. Romero-Pérez. "Optimising processing conditions for the functionalisation of photocatalytic glazes by ZnO nanoparticle deposition." Materiales de Construcción 71, no. 344 (2021): e261. http://dx.doi.org/10.3989/mc.2021.04921.

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ZnO nanospheres were synthesised and then deposited by both single- and double-fire fast processes on as-prepared ceramic substrates. The photocatalytic degradation of resazurin ink was tested under UV light. The single-fired samples did not show any evidence of photocatalytic activity because the nanoparticles melted during sintering at 1210°C. The double-fire ZnO spray-coating method successfully produced glazed materials with an active ZnO surface layer despite the high sintering temperature. The influence of experimental parameters, including the ZnO nanoparticle loading (0.03 to 1 mg/cm2)

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