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Journal articles on the topic 'Photocatalysts'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Chuaicham, Chitiphon, Jirawat Trakulmututa, Kaiqian Shu, et al. "Recent Clay-Based Photocatalysts for Wastewater Treatment." Separations 10, no. 2 (2023): 77. http://dx.doi.org/10.3390/separations10020077.

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Photocatalysis is a remarkable methodology that is popular and applied in different interdisciplinary research areas such as the degradation of hazardous organic contaminants in wastewater. In recent years, clay-based photocatalyst composites have attracted significant attention in the field of photocatalysis owing to their abundance, excellent light response ability, and stability. This review describes the combination of clay with focusing photocatalysts such as TiO2, g-C3N4, and Bi-based compounds for degrading organic pollutants in wastewater. Clay-based composites have more active surface

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Wang, Shifa, Peilin Mo, Dengfeng Li, and Asad Syed. "Intelligent Algorithms Enable Photocatalyst Design and Performance Prediction." Catalysts 14, no. 4 (2024): 217. http://dx.doi.org/10.3390/catal14040217.

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Photocatalysts have made great contributions to the degradation of pollutants to achieve environmental purification. The traditional method of developing new photocatalysts is to design and perform a large number of experiments to continuously try to obtain efficient photocatalysts that can degrade pollutants, which is time-consuming, costly, and does not necessarily achieve the best performance of the photocatalyst. The rapid development of photocatalysis has been accelerated by the rapid development of artificial intelligence. Intelligent algorithms can be utilized to design photocatalysts a

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3

You, Wei. "Research Progresses and Development Trends of High-Efficacy Photocatalysts." Applied Mechanics and Materials 496-500 (January 2014): 532–35. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.532.

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Progresses of research on high-efficacy photocatalyst were introduced in this paper. Firstly, efficiency-strengthening methods of TiO2-serie photocatalysts were summarized basing on collected literatures, including photosensitization, alloying, moreover, novel photocatalysis materials and technologies and probable development tendencies in the future were introduced, such as broad-spectrum photocatalysts, broad-energy and energy-sensitive catalysts and high-efficacy controllable high-power photocatalysis materials and equipments.

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Yanda, Bhupesh Pydiraju, Dharani Sathwik Ram Panchagnula, Terry J. Gentry, and Sreeram Vaddiraju. "Photocatalysis-Assisted Water Remediation Using Porous Nanowire Foams." Water 17, no. 4 (2025): 462. https://doi.org/10.3390/w17040462.

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Deployment of photocatalysis for water disinfection necessitates engineering the process kinetics and achieving the complete recovery of the photocatalyst following the remediation of water. The recovery of the photocatalysts, especially nanostructured photocatalysts, remains a challenge, as indicated by a previous study by our group where only 57% of TiO2 nanowires were recovered by gravity-assisted settling and sedimentation from water after its photocatalysis-assisted E. coli inactivation. To overcome this challenge, a novel method involving the use of photocatalysts in the form of porous f

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Rocha, Rafael Lisandro P., Luzia Maria C. Honorio, Roosevelt Delano de S. Bezerra, et al. "Light-Activated Hydroxyapatite Photocatalysts: New Environmentally-Friendly Materials to Mitigate Pollutants." Minerals 12, no. 5 (2022): 525. http://dx.doi.org/10.3390/min12050525.

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This review focuses on a reasoned search for articles to treat contaminated water using hydroxyapatite (HAp)-based compounds. In addition, the fundamentals of heterogeneous photocatalysis were considered, combined with parameters that affect the pollutants’ degradation using hydroxyapatite-based photocatalyst design and strategies of this photocatalyst, and the challenges of and perspectives on the development of these materials. Many critical applications have been analyzed to degrade dyes, drugs, and pesticides using HAp-based photocatalysts. This systematic review highlights the recent stat

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Teye, Godfred Kwesi, Jingyu Huang, Yi Li, Ke Li, Lei Chen, and Williams Kweku Darkwah. "Photocatalytic Degradation of Sulfamethoxazole, Nitenpyram and Tetracycline by Composites of Core Shell g-C3N4@ZnO, and ZnO Defects in Aqueous Phase." Nanomaterials 11, no. 10 (2021): 2609. http://dx.doi.org/10.3390/nano11102609.

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The synthesis of photocatalysts with high charge separation and transfer efficiency are of immense significance in the process of using photocatalysis technology for wastewater treatment. In this study core shell g-C3N4@ZnO, and ZnO defects photocatalysts presented an improved morphology in its characterization using techniques such as SEM, DRS, PL, MS, EIS, and XRD, and enhanced photodegradation of sulfamethoxazole, Nitenpyram and Tetracycline. Different composites were obtained as confirmed by the various characterization techniques studied, including core shell g-C3N4@ZnO, and ZnO defects p

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Li, Xue, Ulla Simon, Maged F. Bekheet, and Aleksander Gurlo. "Mineral-Supported Photocatalysts: A Review of Materials, Mechanisms and Environmental Applications." Energies 15, no. 15 (2022): 5607. http://dx.doi.org/10.3390/en15155607.

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Although they are of significant importance for environmental applications, the industrialization of photocatalytic techniques still faces many difficulties, and the most urgent concern is cost control. Natural minerals possess abundant chemical inertia and cost-efficiency, which is suitable for hybridizing with various effective photocatalysts. The use of natural minerals in photocatalytic systems can not only significantly decrease the pure photocatalyst dosage but can also produce a favorable synergistic effect between photocatalyst and mineral substrate. This review article discusses the c

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Prakash, Jai. "Mechanistic Insights into Graphene Oxide Driven Photocatalysis as Co-Catalyst and Sole Catalyst in Degradation of Organic Dye Pollutants." Photochem 2, no. 3 (2022): 651–71. http://dx.doi.org/10.3390/photochem2030043.

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Photocatalysis is a promising route to utilize sunlight, which has been potentially used to solve energy as well as environmental problems with an emphasis on fundamental understanding and technological applications in society. Semiconductors are excellent photocatalysts but often show less efficient activities due to the fast recombination of photogenerated charge carriers and very slow kinetics of surface photochemical reactions. However, recent advancements show promising strategies to improve their photocatalytic activities, including surface modifications using suitable co-catalysts and t

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Chang, Haoxu, Yayang Wang, Panzhe Qiao, Bo Sun, Zhengbang Wang та Fei Song. "Formulating InVO4/α-Fe2O3 Heterojunction Composites for Photocatalytic Tetracycline Hydrochloride Degradation". Nanomaterials 14, № 17 (2024): 1441. http://dx.doi.org/10.3390/nano14171441.

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This study reports the synthesis of InVO4/α-Fe2O3 heterojunction photocatalysts with different stoichiometric ratios via a two-step hydrothermal synthesis reaction. The prepared photocatalysts were characterized by XRD, SEM, TEM, XPS, and other methods. The prepared composites exhibited good photocatalysis of tetracycline hydrochloride. Among the InVO4/α-Fe2O3 heterojunction photocatalysts with different ratios, the InVO4/0.25α-Fe2O3 photocatalyst showed the highest degradation rate for 20 mg L−1 tetracycline hydrochloride. After three photocatalytic runs, it still exhibited excellent stabilit

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Thoda, Olga, Anastasia M. Moschovi, Konstantinos Miltiadis Sakkas, Ekaterini Polyzou, and Iakovos Yakoumis. "Highly Active under VIS Light M/TiO2 Photocatalysts Prepared by Single-Step Synthesis." Applied Sciences 13, no. 11 (2023): 6858. http://dx.doi.org/10.3390/app13116858.

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A single-step impregnation approach is investigated as a synthetic route for photocatalyst synthesis active under visible light. The as-derived photocatalysts exhibited very high degradation rates towards methylene blue (MB) decolorization under visible light despite the high concentration of the initial MB solution concentration. The TiO2-based photocatalysts were prepared using nitrate precursor compounds for copper and silver; thus, Ag/TiO2 and Cu/TiO2 photocatalysts were prepared. The photocatalyst’s physicochemical properties were determined by XRF, BET, and XRD analysis. The metal nature

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Ahmad, Abdul Latif, Jing Yi Chin, Abdul Majeed Alaudin, and Norhanis Farhana Mohd Masri. "Influence of TiO2 Phases and Operational Parameters on Photocatalytic Degradation of Methyl Orange." Journal of Physical Science 35, no. 2 (2024): 65–82. http://dx.doi.org/10.21315/jps2024.35.2.5.

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In the textile industry, the wastewater produced consists of large amount of dyes. These dyes possess harm to environmental and public health. TiO2 is one of the most common photocatalysts, however studies about degradation efficiency of dye using different phases of TiO2 is scared. Employing photocatalysis, the novelty of this study is to compare methyl orange (MO) degradation efficiency of pure phases of photocatalysts TiO2 (anatase, rutile and brookite) in terms of their photochemical properties and underlying photocatalytic mechanism. Characterisation evaluations including scanning electro

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Bitsos, Dimitrios Rafail, Apostolos Salepis, Emmanouil Orfanos, et al. "Exploring Metal- and Porphyrin-Modified TiO2-Based Photocatalysts for Efficient and Sustainable Hydrogen Production." Inorganics 13, no. 4 (2025): 121. https://doi.org/10.3390/inorganics13040121.

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Photocatalytic H2 production is one of the most promising approaches for sustainable energy. The literature presents a plethora of carefully designed systems aimed at harnessing solar energy and converting it into chemical energy. However, the main drawback of the reported photocatalysts is their stability. Thus, the development of a cost-effective and stable photocatalyst, suitable for real-world applications remains a challenge. An ideal photocatalyst for H2 production must possess appropriate band-edge energy positions, an effective sacrificial agent, and a suitable cocatalyst. Among the va

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Ngwenya, Phephile, Lehlogonolo S. Tabana, Shepherd M. Tichapondwa, and Evans M. N. Chirwa. "Occurrence, Ecotoxicity, and Photocatalytic Remediation of Antiretroviral Drugs in Global Surface Water Matrices." Catalysts 15, no. 4 (2025): 381. https://doi.org/10.3390/catal15040381.

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The increasing presence of pharmaceuticals, particularly antiretroviral drugs (ARVs), in wastewater has raised concerns regarding their environmental and health impacts. Photocatalysis, driven by advanced photocatalysts, such as coloured TiO2, ZnO, and composites with carbon-based materials, has shown promise as an effective method for degrading these pollutants. Despite significant laboratory-scale success, challenges remain in scaling this technology for real-world applications, particularly in terms of photocatalyst stability, the formation of toxic degradation by-products, and economic fea

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Gao, Lan, Elyes Nefzaoui, Frédéric Marty, et al. "TiO2-Coated ZnO Nanowire Arrays: A Photocatalyst with Enhanced Chemical Corrosion Resistance." Catalysts 11, no. 11 (2021): 1289. http://dx.doi.org/10.3390/catal11111289.

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Photocatalysis is proven to be the most efficient and environmentally friendly method for the degradation of organic pollutants in water purification. To meet the requirement of large-scale water treatment, there are two important points: One is the lifetime and chemical stability of the photocatalyst material, especially in the complex and harsh aqueous conditions. The other is the ease of synthesis of such photocatalysts with specific nano-morphology. In this work, two common photocatalyst materials, zinc oxide (ZnO) and titanium dioxide (TiO2), are selected to form more sustainable photocat

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Singh, Gurpinder, Manpreet Kaur Ubhi, Kiran Jeet, Chetan Singla, and Manpreet Kaur. "A Review on Impacting Parameters for Photocatalytic Degradation of Organic Effluents by Ferrites and Their Nanocomposites." Processes 11, no. 6 (2023): 1727. http://dx.doi.org/10.3390/pr11061727.

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Traditional wastewater treatment methods, such as reverse osmosis, adsorption, desalination, and others, are outweighed by the photocatalytic degradation of organic pollutants. Ferrites are prominent photocatalysts due to their tunable band gaps, surface areas, and magnetic properties, which render photodegradation economical. Ferrites and their nanocomposites have been reported as promising visible light active photocatalysts. The photocatalytic system is heavily reliant on a number of factors that influence the photodegradation of organic effluents. This review demonstrates various parameter

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Gusarov, Sergey. "Advances in Computational Methods for Modeling Photocatalytic Reactions: A Review of Recent Developments." Materials 17, no. 9 (2024): 2119. http://dx.doi.org/10.3390/ma17092119.

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Photocatalysis is a fascinating process in which a photocatalyst plays a pivotal role in driving a chemical reaction when exposed to light. Its capacity to harness light energy triggers a cascade of reactions that lead to the formation of intermediate compounds, culminating in the desired final product(s). The essence of this process is the interaction between the photocatalyst’s excited state and its specific interactions with reactants, resulting in the creation of intermediates. The process’s appeal is further enhanced by its cyclic nature—the photocatalyst is rejuvenated after each cycle,

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17

Kudo, Akihiko. "Photocatalysis and solar hydrogen production." Pure and Applied Chemistry 79, no. 11 (2007): 1917–27. http://dx.doi.org/10.1351/pac200779111917.

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Photocatalytic water splitting is a challenging reaction because it is an ultimate solution to energy and environmental issues. Recently, many new powdered photocatalysts for water splitting have been developed. For example, a NiO (0.2 wt %)/NaTaO3:La (2 %) photocatalyst with a 4.1-eV band gap showed high activity for water splitting into H2 and O2 with an apparent quantum yield of 56 % at 270 nm. Overall water splitting under visible light irradiation has been achieved by construction of a Z-scheme photocatalysis system employing visible-light-driven photocatalysts, Ru/SrTiO3:Rh and BiVO4 for

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Fadlun, Wan. "Carbon Dioxide Reduction to Solar Fuels via Iron-Based Nanocomposite: Strategies to Intensify the Photoactivity." Journal of Computational and Theoretical Nanoscience 17, no. 2 (2020): 654–62. http://dx.doi.org/10.1166/jctn.2020.8789.

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Photocatalysis has been studied over three decades ago as a promising alternative for carbon dioxide (CO2) reduction with the ultimate objective of promoting sustainable keys to address global warming and energy crisis. In particular, photocatalysis offers the reduction of CO2 to renewable hydrocarbon fuels by utilizing limitless sunlight to trigger the reaction. The urgency reducing CO2 to solar fuels have aroused attention towards Fe-based material owing to their abundance, flexible compositional tunability, recyclability, and low cost compared to noble-metal photocatalysts. This review disc

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Gu, Zhanyong, Mengdie Jin, Xin Wang, et al. "Recent Advances in g-C3N4-Based Photocatalysts for NOx Removal." Catalysts 13, no. 1 (2023): 192. http://dx.doi.org/10.3390/catal13010192.

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Nitrogen oxides (NOx) pollutants can cause a series of environmental issues, such as acid rain, ground-level ozone pollution, photochemical smog and global warming. Photocatalysis is supposed to be a promising technology to solve NOx pollution. Graphitic carbon nitride (g-C3N4) as a metal-free photocatalyst has attracted much attention since 2009. However, the pristine g-C3N4 suffers from poor response to visible light, rapid charge carrier recombination, small specific surface areas and few active sites, which results in deficient solar light efficiency and unsatisfactory photocatalytic perfo

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20

Li, Bin, Xin Yi Wang, and Xiao Gang Yang. "Effect of Mixing Ratio and Doping Acid on the Photocatalytic Properties of PANI-BiVO₄ Composites." Key Engineering Materials 727 (January 2017): 866–69. http://dx.doi.org/10.4028/www.scientific.net/kem.727.866.

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BiVO4 photocatalyst prepared by hydrothermal method was mixed with polyaniline (PANI). The phase structure, morphology and optical properties of PANI-BiVO4 photocatalysts were analyzed through X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-Vis diffuse reflectance spectroscopy (DRS). The results showed that the optimal preparation conditions of composite photocatalyst were 0.5wt.% PANI mixing ratio and H3PO4 as doping acid. The photocatalysis degradation rate is the highest. This new heterogeneous structure photocatalyst is expected to show considerably potential application

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Abed, Jehad, Nitul S. Rajput, Amine El Moutaouakil, and Mustapha Jouiad. "Recent Advances in the Design of Plasmonic Au/TiO2 Nanostructures for Enhanced Photocatalytic Water Splitting." Nanomaterials 10, no. 11 (2020): 2260. http://dx.doi.org/10.3390/nano10112260.

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Plasmonic nanostructures have played a key role in extending the activity of photocatalysts to the visible light spectrum, preventing the electron–hole combination and providing with hot electrons to the photocatalysts, a crucial step towards efficient broadband photocatalysis. One plasmonic photocatalyst, Au/TiO2, is of a particular interest because it combines chemical stability, suitable electronic structure, and photoactivity for a wide range of catalytic reactions such as water splitting. In this review, we describe key mechanisms involving plasmonics to enhance photocatalytic properties

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Singh, Seema, Aniket Chaki, Devesh Pratap Chand, Avinash Raghuwanshi, Pramod Kumar Singh, and Hari Mahalingham. "A novel polystyrene-supported titanium dioxide photocatalyst for degradation of methyl orange and methylene blue dyes under UV irradiation." Journal of Chemical Engineering 28, no. 1 (2014): 9–13. http://dx.doi.org/10.3329/jce.v28i1.18103.

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The commercialization of titanium dioxide-based heterogeneous photocatalysis continues to suffer from various limitations, the major shortcoming being the costly and time consuming post-treatment separation of very fine titanium dioxide particles. In order to eliminate this major hindrance, immobilization of titanium dioxide particles on various substrates continues to be an active area of research. In this work, polystyrene-supported titanium dioxide photocatalyst was prepared using a facile method. The photocatalytic activity of the developed photocatalysts was investigated by photodegradati

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Shanmugaratnam, Sivagowri, Elilan Yogenthiran, Ranjit Koodali, Punniamoorthy Ravirajan, Dhayalan Velauthapillai, and Yohi Shivatharsiny. "Recent Progress and Approaches on Transition Metal Chalcogenides for Hydrogen Production." Energies 14, no. 24 (2021): 8265. http://dx.doi.org/10.3390/en14248265.

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Development of efficient and affordable photocatalysts is of great significance for energy production and environmental sustainability. Transition metal chalcogenides (TMCs) with particle sizes in the 1–100 nm have been used for various applications such as photocatalysis, photovoltaic, and energy storage due to their quantum confinement effect, optoelectronic behavior, and their stability. In particular, TMCs and their heterostructures have great potential as an emerging inexpensive and sustainable alternative to metal-based catalysts for hydrogen evolution. Herein, the methods used for the f

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Che, Ruijie, Yining Zhu, Biyang Tu, et al. "A Meta-Analysis of Influencing Factors on the Activity of BiVO4-Based Photocatalysts." Nanomaterials 13, no. 16 (2023): 2352. http://dx.doi.org/10.3390/nano13162352.

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With the continuous advancement of global industrialization, a large amount of organic and inorganic pollutants have been discharged into the environment, which is essential for human survival. Consequently, the issue of water environment pollution has become increasingly severe. Photocatalytic technology is widely used to degrade water pollutants due to its strong oxidizing performance and non-polluting characteristics, and BiVO4-based photocatalysts are one of the ideal raw materials for photocatalytic reactions. However, a comprehensive global analysis of the factors influencing the photoca

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Hu, Xuefeng, Ting Luo, Yuhan Lin, and Mina Yang. "Construction of Novel Z-Scheme g-C3N4/AgBr-Ag Composite for Efficient Photocatalytic Degradation of Organic Pollutants under Visible Light." Catalysts 12, no. 11 (2022): 1309. http://dx.doi.org/10.3390/catal12111309.

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As a green and sustainable technology to relieve environmental pollution issues, semiconductor photocatalysis attracted great attention. However, most single-component semiconductors suffer from high carrier recombination rate and low reaction efficiency. Here, we constructed a novel visible-light-driven Z-scheme g-C3N4/AgBr-Ag photocatalyst (noted as CN-AA-0.05) using a hydrothermal method with KBr as the bromine source. The CN-AA-0.05 photocatalyst shows an excellent photocatalytic degradation performance, and a rhodamine B (RhB) degradation ratio of 96.3% in 40 min, and 2-mercaptobenzothiaz

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Feliczak-Guzik, Agnieszka. "Nanomaterials as Photocatalysts—Synthesis and Their Potential Applications." Materials 16, no. 1 (2022): 193. http://dx.doi.org/10.3390/ma16010193.

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Increasing demand for energy and environmental degradation are the most serious problems facing the man. An interesting issue that can contribute to solving these problems is the use of photocatalysis. According to literature, solar energy in the presence of a photocatalyst can effectively (i) be converted into electricity/fuel, (ii) break down chemical and microbial pollutants, and (iii) help water purification. Therefore, the search for new, efficient, and stable photocatalysts with high application potential is a point of great interest. The photocatalysts must be characterized by the abili

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Zelekew, Osman Ahmed, and Yi-nan Wu. "Metal Doped-MoS₂/g-C₃N₄ Nanocomposites for Antibiotics Degradation with Photo-Fenton Reaction Process: Defect Engineering, Synergistic Effects, and Degradation Mechanisms." ECS Meeting Abstracts MA2024-01, no. 13 (2024): 1072. http://dx.doi.org/10.1149/ma2024-01131072mtgabs.

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Currently, the energy crisis and environmental pollutions due to the growth of industrialization and urbanization become gradually a prominent and serious issue. Due to these reasons, we aimed to design photoactive metal-doped MoS2/g-C3N4 nanocomposites photocatalysts for the degradation of antibiotics. The degradation of organic pollutants with photocatalysis is considered as green, ecofriendly, economical, and promising methods. Herein, ultrathin g-C3N4 was prepared with simple method and combined with metal-doped MoS2 (Mg-doped MoS2) with varying the amounts of dopants. The prepared photoca

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Pei, Junxiang, Haofeng Li, Songlin Zhuang, Dawei Zhang, and Dechao Yu. "Recent Advances in g-C3N4 Photocatalysts: A Review of Reaction Parameters, Structure Design and Exfoliation Methods." Catalysts 13, no. 11 (2023): 1402. http://dx.doi.org/10.3390/catal13111402.

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Graphitized carbon nitride (g-C3N4), as a metal-free, visible-light-responsive photocatalyst, has a very broad application prospect in the fields of solar energy conversion and environmental remediation. The g-C3N4 photocatalyst owns a series of conspicuous characteristics, such as very suitable band structure, strong physicochemical stability, abundant reserves, low cost, etc. Research on the g-C3N4 or g-C3N4-based photocatalysts for real applications has become a competitive hot topic and a frontier area with thousands of publications over the past 17 years. In this paper, we carefully revie

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Tachibana, Yasuhiro. "Photo-Generated Charge Carrier Dynamics in Metal Oxide Photocatalysts." ECS Meeting Abstracts MA2023-02, no. 47 (2023): 2335. http://dx.doi.org/10.1149/ma2023-02472335mtgabs.

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Solar water splitting is one of the most attractive energy carrier generation processes to utilize solar energy. Light generated hydrogen is a clean energy carrier, since their consumption for energy generation produces only water. Moreover, generated hydrogen can be stored and used whenever required. Hydrogen is mostly used as a feedstock in the chemical and petrochemical industries, e.g. production of ammonia, methanol and fertilisers.[1] The photocatalytic solar water splitting process has been studied extensively over the last half century. However, despite the efforts, no ideal photocatal

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Park, Hyunwoong. "(Invited) A Wired Photosynthesis of Formate from Aqueous CO₂ Using Earth Abundant Catalysts." ECS Meeting Abstracts MA2018-01, no. 31 (2018): 1834. http://dx.doi.org/10.1149/ma2018-01/31/1834.

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Harnessing and utilizing sunlight at high efficiency have represented an enormous challenge to the achievement of a carbon neutral society over the past four decades. Photocatalysis uniquely mimics natural photosynthesis in terms of light absorption and conversion, as well as storage of the absorbed photon energy into chemical bond energy. Despite this similarity, the development of low cost photocatalysts capable of selectively producing liquid chemicals from CO2 and water with efficiency and durability comparable to those in typical photosynthesis remains a great challenge. Most of the photo

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Park, Hyunwoong. "(Invited) Unassisted Conversion of Carbon Dioxide and Water into Aliphatic Acids Using Copper and Iron Oxide Photocatalyst Film at Solar-to-Chemical Conversion Efficiency of ~5%." ECS Meeting Abstracts MA2024-02, no. 59 (2024): 3976. https://doi.org/10.1149/ma2024-02593976mtgabs.

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Harnessing and utilizing sunlight at high efficiency have represented an enormous challenge to the achievement of a carbon neutral society over the past four decades. Photocatalysis uniquely mimics natural photosynthesis in terms of light absorption and conversion, as well as storage of the absorbed photon energy into chemical bond energy. Despite this similarity, the development of low cost photocatalysts capable of selectively producing liquid chemicals from CO2 and water with efficiency and durability comparable to those in typical photosynthesis remains a great challenge. Most of the photo

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TekinTekinTekinTekin, Derya. "Production, characterization of Fe3O4@CuO composite photocatalysts and determination of photocatalytic activity on Rhodamine B." Brilliant Engineering 1, no. 4 (2020): 26–29. http://dx.doi.org/10.36937/ben.2020.004.005.

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In this study, the hydrothermal method was used to synthesize the Fe3O4 particles and the Fe3O4@CuO composite photocatalyst. The XRD, SEM-EDS, UV-Vis, and VSM analyzes were used for the characterization of the synthesized particles and composites. The photocatalysts were determined to show typical Fe3O4 and CuO properties by XRD analysis which were used to determine the crystal structure of photocatalyst. The SEM analysis was used to investigate the surface morphology of photocatalysts and it was determined that the photocatalysts completed their spherical formation and showed a homogeneous di

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Porcu, Stefania, Stefania Maloccu, Angela Corona, et al. "Visible Light-Mediated Inactivation of H1N1 Virus UsingPolymer-Based Heterojunction Photocatalyst." Polymers 15, no. 11 (2023): 2536. http://dx.doi.org/10.3390/polym15112536.

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It is well known that viruses cannot replicate on their own but only inside the cells of target tissues in the organism, resulting in the destruction of the cells or, in some cases, their transformation into cancer cells. While viruses have relatively low resistance in the environment, their ability to survive longer is based on environmental conditions and the type of substrate on which they are deposited. Recently, the potential for safe and efficient viral inactivation by photocatalysis has garnered increasing attention. In this study, the Phenyl carbon nitride/TiO2 heterojunction system, a

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Dutta, Vishal, Ankush Chauhan, Ritesh Verma, C. Gopalkrishnan, and Van-Huy Nguyen. "Recent trends in Bi-based nanomaterials: challenges, fabrication, enhancement techniques, and environmental applications." Beilstein Journal of Nanotechnology 13 (November 11, 2022): 1316–36. http://dx.doi.org/10.3762/bjnano.13.109.

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One of the most enticing approaches to environmental restoration and energy conversion is photocatalysis powered by solar light. Traditional photocatalysts have limited practical uses due to inadequate light absorption, charge separation, and unknown reaction mechanisms. Discovering new visible-light photocatalysts and investigating their modification is crucial in photocatalysis. Bi-based photocatalytic nanomaterials have gotten much interest as they exhibit distinctive geometric shapes, flexible electronic structures, and good photocatalytic performance under visible light. They can be emplo

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Parida, Vishal Kumar, Suneel Kumar Srivastava, Ashok Kumar Gupta, and Akash Rawat. "A review on nanomaterial-based heterogeneous photocatalysts for removal of contaminants from water." Materials Express 13, no. 1 (2023): 1–38. http://dx.doi.org/10.1166/mex.2023.2319.

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The rising concentration of pollutants in the environment due to partially treated or untreated wastewater entering the surface waters has seriously challenged the integrity of the ecosystem and the quality of water for human health. Therefore, it is crucial to establish a productive and economical process to degrade recalcitrant pollutants from various water matrices owing to the ineffectual removal of these contaminants by conventional treatment methods. In this regard, advanced oxidation processes (AOPs), especially photocatalysis, have gained much attention due to their unique properties,

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Cheng, Yan, Chenxi Li, Shindume Lomboleni Hamukwaya, Guangdong Huang, and Zengying Zhao. "Synthesis of Composite Titanate Photocatalyst via Molten Salt Processing and Its Enhanced Photocatalytic Properties." Nanomaterials 13, no. 22 (2023): 2944. http://dx.doi.org/10.3390/nano13222944.

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Photocatalysis plays a pivotal role in environmental remediation and energy production and improving the efficiency of photocatalysts, yet enhancing its efficiency remains a challenge. Titanate has been claimed to be a very promising material amongst various photocatalysts in recent years. In this work, a novel composite photocatalyst of sodium titanate and potassium titanate was synthesized via a simple hydrothermal and molten salt calcination method. Low melting point nitrate was added in the calcination process, which helps reduce the calcination temperature. The as-prepared composite sampl

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Wang, Wanting, Yuanting Wu, Long Chen, Chenggang Xu, Changqing Liu, and Chengxin Li. "Fabrication of Z-Type TiN@(A,R)TiO2 Plasmonic Photocatalyst with Enhanced Photocatalytic Activity." Nanomaterials 13, no. 13 (2023): 1984. http://dx.doi.org/10.3390/nano13131984.

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Plasmonic effect-enhanced Z-type heterojunction photocatalysts comprise a promising solution to the two fundamental problems of current TiO2-based photocatalysis concerning low-charge carrier separation efficiency and low utilization of solar illumination. A plasmonic effect-enhanced TiN@anatase-TiO2/rutile-TiO2 Z-type heterojunction photocatalyst with the strong interface of the N–O chemical bond was synthesized by hydrothermal oxidation of TiN. The prepared photocatalyst shows desirable visible light absorption and good visible-light-photocatalytic activity. The enhancement in photocatalytic

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Wei, Xiao, Kai-Xue Wang, Xing-Xing Guo, and Jie-Sheng Chen. "Single-site photocatalysts with a porous structure." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 468, no. 2143 (2012): 2099–112. http://dx.doi.org/10.1098/rspa.2012.0071.

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A photocatalytic reaction involves charge separation and transfer under photo-irradiation, and the photogenerated charge carriers (holes and electrons) are responsible for the photocatalytic activity of the catalyst. The active centres in a single-site photocatalyst are the isolated and spatially separated sites that may interact with reactants after photo-irradiation. Generally, single-site photocatalysts perform better than other types of photocatalysts owing to the presence of the efficient active centres. A porous structure can provide more single sites and special passages for charge tran

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Khan, Zeeshan, Juhana Jaafar, Azmat Ali Khan, et al. "MXENE AS FUTURE POTENTIAL PHOTOACTIVE CO-CATALYST MATERIAL FOR EFFICIENT VISIBLE LIGHT PHOTODEGRADATION OF PERSISTENT ORGANIC CONTAMINANTS: A REVIEW." ASEAN Engineering Journal 14, no. 4 (2024): 101–11. https://doi.org/10.11113/aej.v14.21320.

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Advanced oxidation strategies (AOSs), which are regarded as an eco-friendly approach, are being evaluated as a potential technique to address the escalating energy crisis and environmental issues stemming from the industrial revolution. Traditional wastewater treatment techniques often result in the emission of possibly harmful by-products. Therefore, various semiconductor photocatalysts such as TiO2, ZnO, g-C3N4, CdS, WO3, and ZnS have been under continuous investigation to fulfill the need for efficient treatment of wastewater in a cost-effective approach. However, there is a pressing need t

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Radetić, Lucija, Jan Marčec, Ivan Brnardić, Tihana Čižmar, and Ivana Grčić. "Study of Photocatalytic Oxidation of Micropollutants in Water and Intensification Case Study." Catalysts 12, no. 11 (2022): 1463. http://dx.doi.org/10.3390/catal12111463.

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During the last decades, heterogenous photocatalysis has shown as the most promising advanced oxidation process for the removal of micropollutants due to degradation rate, sustainability, non-toxicity, and low-cost. Synergistic interaction of light irradiation, photocatalysts, and highly reactive species are used to break down pollutants toward inert products. Even though titanium dioxide (TiO2) is the most researched photocatalyst, to overcome shortcomings, various modifications have been made to intensify photocatalytic activity in visible spectra range among which is modification with multi

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Yang, Xiaoyong, Deobrat Singh, and Rajeev Ahuja. "Recent Advancements and Future Prospects in Ultrathin 2D Semiconductor-Based Photocatalysts for Water Splitting." Catalysts 10, no. 10 (2020): 1111. http://dx.doi.org/10.3390/catal10101111.

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Ultrathin two-dimensional (2D) semiconductor-mediated photocatalysts have shown their compelling potential and have arguably received tremendous attention in photocatalysis because of their superior thickness-dependent physical, chemical, mechanical and optical properties. Although numerous comprehensions about 2D semiconductor photocatalysts have been amassed up to now, low cost efficiency, degradation, kinetics of charge transfer along with recycling are still the big challenges to realize a wide application of 2D semiconductor-based photocatalysis. At present, most photocatalysts still need

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Hong, Jong-Wook. "Development of Visible-Light-Driven Rh–TiO2–CeO2 Hybrid Photocatalysts for Hydrogen Production." Catalysts 11, no. 7 (2021): 848. http://dx.doi.org/10.3390/catal11070848.

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Visible-light-driven hydrogen production through photocatalysis has attracted enormous interest owing to its great potential to address energy and environmental issues. However, photocatalysis possesses several limitations to overcome for practical applications, such as low light absorption efficiency, rapid charge recombination, and poor stability of photocatalysts. Here, the preparation of efficient noble metal–semiconductor hybrid photocatalysts for photocatalytic hydrogen production is presented. The prepared ternary Rh–TiO2–CeO2 hybrid photocatalysts exhibited excellent photocatalytic per

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Shen, Yan Qin, and Hai Liang Wu. "The Photo-Catalytic Activity of Cu²⁺-Doped TiO₂ and Applications in the Self-Cleaning Performance of Textile Wall Fabrics." Advanced Materials Research 557-559 (July 2012): 1475–78. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.1475.

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TiO2 photocatalyst and copper-doped titania (Cu/TiO2) photocatalyst were prepared and both photocatalysts were used in the self-cleaning finishing of wall fabrics. XRD showed that the nanometer materials and textile wall fabrics were a good combination. By comparing the self-cleaning effects of two kinds of photocatalysts, the results demonstrate that textile wall fabrics finished with Cu2+-doped TiO2 photocatalyst have better self-cleaning effect under visible light.

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Mottola, Stefania, Antonietta Mancuso, Olga Sacco, Vincenzo Vaiano, and Iolanda De Marco. "Photocatalytic Systems Based on ZnO Produced by Supercritical Antisolvent for Ceftriaxone Degradation." Catalysts 13, no. 8 (2023): 1173. http://dx.doi.org/10.3390/catal13081173.

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Emerging contaminants are a significant issue in the environment. Photocatalysis is proposed as a solution for the degradation of pollutants contained in wastewater. In this work, ZnO-based photocatalysts have been produced and tested for the photocatalytic degradation of an antibiotic; specifically, ceftriaxone has been used as a model contaminant. Moreover, there is particular interest in combining small-size ZnO particles and β-cyclodextrin (β-CD), creating a hybrid photocatalyst. Zinc acetate (ZnAc) (subsequently calcinated into ZnO) and β-CD particles with a mean diameter of 0.086 and 0.3

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Zhou, Pengfei, Fei Wang, Yanbai Shen, et al. "Removal of Emerging Organic Pollutants by Zeolite Mineral (Clinoptilolite) Composite Photocatalysts in Drinking Water and Watershed Water." Catalysts 14, no. 4 (2024): 216. http://dx.doi.org/10.3390/catal14040216.

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One of the most challenging problems for people around the world is the lack of clean water. In the past few decades, the massive discharge of emerging organic pollutants (EOPs) into natural water bodies has exacerbated this crisis. Considerable research efforts have been devoted to removing these EOPs due to their biotoxicity at low concentrations. Heterogeneous photocatalysis via coupling clay minerals with nanostructured semiconductors has proven to be an economical, efficient, and environmentally friendly technology for the elimination of EOPs in drinking water and watershed water. Natural

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Sivaraman, Chandhinipriya, Shankar Vijayalakshmi, Estelle Leonard, Suresh Sagadevan, and Ranjitha Jambulingam. "Current Developments in the Effective Removal of Environmental Pollutants through Photocatalytic Degradation Using Nanomaterials." Catalysts 12, no. 5 (2022): 544. http://dx.doi.org/10.3390/catal12050544.

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Photocatalysis plays a prominent role in the protection of the environment from recalcitrant pollutants by reducing hazardous wastes. Among the different methods of choice, photocatalysis mediated through nanomaterials is the most widely used and economical method for removing pollutants from wastewater. Recently, worldwide researchers focused their research on eco-friendly and sustainable environmental aspects. Wastewater contamination is one of the major threats coming from industrial processes, compared to other environmental issues. Much research is concerned with the advanced development

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Tigabu Bekele, Mekonnen. "An overview of the developments of nanotechnology and heterogeneous photocatalysis in the presence of metal nanoparticles." Journal of Plant Science and Phytopathology 6, no. 3 (2022): 103–14. http://dx.doi.org/10.29328/journal.jpsp.1001083.

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In general, nanotechnology can be understood as a technology of design, fabrication and applications of nanostructures and nanomaterials, as well as a fundamental understanding of the physical properties and phenomena of nanomaterials and nanostructures. In recent years the development of industries like textile, leather, paint, food, plastics, and cosmetics is enlarged and these industries are connected with the discarding of a vast number of organic pollutants which are harmful to microbes, aquatic systems, and human health by influencing the different parameters. So the fabrication of those

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48

Goodarzi, Nahal, Zahra Ashrafi-Peyman, Elahe Khani, and Alireza Z. Moshfegh. "Recent Progress on Semiconductor Heterogeneous Photocatalysts in Clean Energy Production and Environmental Remediation." Catalysts 13, no. 7 (2023): 1102. http://dx.doi.org/10.3390/catal13071102.

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Semiconductor-based photocatalytic reactions are a practical class of advanced oxidation processes (AOPs) to address energy scarcity and environmental pollution. By utilizing solar energy as a clean, abundant, and renewable source, this process offers numerous advantages, including high efficiency, eco-friendliness, and low cost. In this review, we present several methods to construct various photocatalyst systems with excellent visible light absorption and efficient charge carrier separation ability through the optimization of materials design and reaction conditions. Then it introduces the f

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Young, C., T. M. Lim, K. Chiang, and R. Amal. "Photocatalytic degradation of toluene by platinized titanium dioxide photocatalysts." Water Science and Technology 50, no. 4 (2004): 251–56. http://dx.doi.org/10.2166/wst.2004.0276.

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A photoreactor has been set up to study the photodegradation of volatile organic compound (VOC) in situ. In the reactor, TiO2 and Pt/TiO2 photocatalysts were immobilized on to UV-transparent quartz support. Scanning electron microscope (SEM) studies and Brunauer-Emmett-Teller (BET) surface area measurements revealed that the quartz fiber support was mostly coated with catalyst with a total surface area of 4.0 ± 0.3 m2/g. The photocatalytic activity of the photocatalysts was evaluated for the photodegradation of 160 ppm toluene-laden air. It was found that 50-70% of toluene was degraded within

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Meng, Fancang, Wenhao Wang, Yang Zeng, et al. "Attachable, Self-Healing and Durable TiO2/rGO/PVA Photocatalytic Hydrogel Band for Dye Degradation." Journal of Materials Chemistry C, 2024. http://dx.doi.org/10.1039/d4tc02634a.

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Hydrogel-supported photocatalysts are one of the promising photocatalysis systems for solving the application issues of easy aggregation and poor recycling from nano photocatalysts. However, most photocatalyst-hydrogel composites exist in the...

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