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Journal articles on the topic 'Photocatalysis Self-Cleaning'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Gryparis, Charis, Themis Krasoudaki, and Pagona-Noni Maravelaki. "Self-Cleaning Coatings for the Protection of Cementitious Materials: The Effect of Carbon Dot Content on the Enhancement of Catalytic Activity of TiO2." Coatings 12, no. 5 (2022): 587. http://dx.doi.org/10.3390/coatings12050587.

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The urgent demand for pollution protection of monuments and buildings forced the interest towards specific preservation methods, such as the application of photocatalytic coatings with self-cleaning and protective activity. TiO2 photocatalysts without and with a variety of carbon dots loading (TC0, TC25–75) were synthesized via a green, simple, low cost and large-scale hydrothermal method using citric acid, hydroxylamine and titanium isopropoxide (TTIP) and resulted in uniform anatase phase structures. In photocatalysis experiments, TC25 and TC50 composites with 1:3 and 1:1 mass ratio of C-dot

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Gryparis, Charis, Themis Krasoudaki, and Pagona-Noni Maravelaki. "Self-Cleaning Coatings for the Protection of Cementitious Materials: The Effect of Carbon Dot Content on the Enhancement of Catalytic Activity of TiO2." Coatings 12, no. 5 (2022): 587. http://dx.doi.org/10.3390/coatings12050587.

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The urgent demand for pollution protection of monuments and buildings forced the interest towards specific preservation methods, such as the application of photocatalytic coatings with self-cleaning and protective activity. TiO2 photocatalysts without and with a variety of carbon dots loading (TC0, TC25–75) were synthesized via a green, simple, low cost and large-scale hydrothermal method using citric acid, hydroxylamine and titanium isopropoxide (TTIP) and resulted in uniform anatase phase structures. In photocatalysis experiments, TC25 and TC50 composites with 1:3 and 1:1 mass ratio of C-dot

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3

Song, Huiping, Shirui Zhang, Shuyan Cheng, Zhenlian Fan, Hongyu Gao та Fangqin Cheng. "A photocatalytic superhydrophobic coating with p–n type BiOBr/α-Fe₂O₃ heterojunctions applied in NO degradation". RSC Advances 15, № 2 (2025): 832–43. https://doi.org/10.1039/d4ra08085h.

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The p–n BiOBr/α-Fe2O3 heterojunction enhances photocatalysis. The photocatalytic superhydrophobic coating is able to continuously degrade NO through the synergistic action of photocatalysis and self-cleaning.

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4

Bielan, Zuzanna, Szymon Dudziak, Adam Kubiak, and Ewa Kowalska. "Application of Spinel and Hexagonal Ferrites in Heterogeneous Photocatalysis." Applied Sciences 11, no. 21 (2021): 10160. http://dx.doi.org/10.3390/app112110160.

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Semiconducting materials display unique features that enable their use in a variety of applications, including self-cleaning surfaces, water purification systems, hydrogen generation, solar energy conversion, etc. However, one of the major issues is separation of the used materials from the process suspension. Therefore, chemical compounds with magnetic properties have been proposed as crucial components of photocatalytic composites, facilitating separation and recovery of photocatalysts under magnetic field conditions. This review paper presents the current state of knowledge on the applicati

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Singh, Vishvendra Pratap, Rahul Vaish, and El Sayed Yousef. "A Review on Cement-Based Composites for Removal of Organic/Heavy Metal Contaminants from Water." Catalysts 12, no. 11 (2022): 1398. http://dx.doi.org/10.3390/catal12111398.

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Building materials are traditionally known for their mechanical and structural properties. As environmental pollution has risen as a huge global issue, functional building materials with environmental remediation capabilities are the demand for the present time. In this context, cement and concrete with photocatalytic and adsorbent additives were explored for air and water remediation. The usage of functional building materials for self-cleaning and air cleaning is well documented and reviewed in earlier reports. This article gives an overview of the functional building material composites use

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6

Rocha Segundo, Freitas, Landi Jr., Costa, and Carneiro. "Smart, Photocatalytic and Self-Cleaning Asphalt Mixtures: A Literature Review." Coatings 9, no. 11 (2019): 696. http://dx.doi.org/10.3390/coatings9110696.

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Nowadays, there is increasing concern in transportation engineering about the use of techniques less harmful to the environment and also about road safety. Heterogeneous photocatalysis based on the application of semiconductor materials onto asphalt mixtures is a promising technology because it can mitigate air pollution and road accidents. The functionalized asphalt mixtures with photocatalytic capability can degrade pollutants, such as damaging gases and oil/grease adsorbed on their surface, from specific reactions triggered by sunlight photons, providing significant environmental and social

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7

Baani, Singh Sarabtej Singh JS Dhau and Zorawar Singh. "Degradation of Orange G, Methyl Orange and Methylene Blue using Different Photocatalytic Systems." Environmental Science Archives 4, no. 1 (2025): 7–13. https://doi.org/10.5281/zenodo.14584873.

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Photocatalytic studies emphasize upon the chemical reactions that occur when light and a photocatalyst are present in a chemical reaction. A semiconductor known as a photocatalyst increases the rate of reaction just by being there. Numerous uses for photocatalysis exist, including water purification, self-cleaning, antimicrobial, de-odorizing, air purifying and antifogging. Since photocatalysis is a green chemical route, it is essential in the present times and is the need of the hour. Various industries are using different types of dyes in their routine processes including textile and leather

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8

Nematov, Dilshod. "Titanium Dioxide and Photocatalysis: A Detailed Overview of the Synthesis, Applications, Challenges, Advances and Prospects for Sustainable Development." Journal of Modern Green Energy 3 (October 14, 2024): 6. http://dx.doi.org/10.53964/jmge.2024006.

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The term “photocatalysis” has recently gained high popularity, and various products using photocatalytic functions have been commercialized. Of all the materials that may be used as photocatalysts, titanium dioxide (TiO2) is virtually the only one that is now and most likely will remain appropriate for industrial application. Water and air purification systems, sterilization, hydrogen evolution, self-cleaning surfaces, and photoelectrochemical conversion are just a few of the products and applications in the environmental and energy domains that make extensive use of TiO2 photocatalysis. This

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Lavrenčič Štangar, Urška, Marko Kete, Urh Černigoj, and Vilma Ducman. "Testing of Photocatalytic Activity of Self-Cleaning Surfaces." Advances in Science and Technology 68 (October 2010): 126–34. http://dx.doi.org/10.4028/www.scientific.net/ast.68.126.

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Due to relatively successful application of TiO2 photocatalysis in the field of self-cleaning surfaces, a reliable and appropriate quantitative method for determining the self-cleaning efficiency of the products (photocatalyst films on different supports) should be widely recognized and established. Currently, the two standard methods are based on photobleaching of methylene blue aqueous solution in contact with thin solid catalyst layer, and on photodegradation of a solid fatty deposit (e.g. stearic acid) over catalyst layer followed indirectly by water contact angle (CA) measurements. Anothe

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10

Liu, Hong Quan, Fang Lian, Lin Zhang, and Meng Liu. "Photocatalysis Property of Titania-Based Thin Films with Covalent Grafting PANi as Sensitizer." Advanced Materials Research 549 (July 2012): 470–73. http://dx.doi.org/10.4028/www.scientific.net/amr.549.470.

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Polyaniline sensitized titania thin film were fabricated by spin-coating from Ti-precursor containing PEG as surfactant via a sol-gel technique, in which titania-sol was synthesized by hydrolysis of tetrabutyl titanate in water-alcohol solution. The films were characterized by X-ray diffraction, high resolution transmission electron microscopy, field-emission scanning electron microscopy, thermal gravity-differential scanning calorimetry, and tested under self-made photocatalysis instrument. The results showed the synthesized porous films provided the active surfaces for self-polymerization of

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11

Lavrenčič Štangar, Urška, Minoo Tasbihi, Fernando Fresno, et al. "Self-Cleaning and Anti-Fogging Surfaces Based on Nanostructured Metal Oxides." Advances in Science and Technology 91 (October 2014): 39–47. http://dx.doi.org/10.4028/www.scientific.net/ast.91.39.

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Self-cleaning and anti-fogging technology is already used in a variety of the products today, among which glazing products prevail. Their function is based on the two principles, either hydrophobic (Lotus effect) or photocatalytic hydrophilic principle. In the latter case, self-cleaning action is based on the combination of photocatalysis and photoinduced superhydrophilicity, where dirt removal by uniform spreading of water over the whole surface is improved with photocatalytic decomposition of organic contaminants. There is a big room to play and a huge potential to improve the properties of

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12

TISMANAR, IOANA, and ANCA DUTA. "Vis-active photocatalytic composite thin films for advanced wastewater treatment." Journal of Engineering Sciences and Innovation 7, no. 2 (2022): 193–202. http://dx.doi.org/10.56958/jesi.2022.7.2.193.

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Conventional wastewater treatment processes are preparing the water for discharge thus it still contains small amounts of pollutants. For re-use, advanced wastewater treatment is required and heterogeneous photocatalysis represent a viable path for removing organic pollutants at very low concentrations but still above the discharge limit. The mostly investigated photocatalyst is TiO2 that is a wide band gap semiconductor that can be activated only using UV radiation. However, for large-scale implementation of advanced wastewater treatment, there are required efficient and affordable processes,

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13

Ding, Jun. "Preparation of TiO₂ Photocatalysis Antibacterial Ceramics." Key Engineering Materials 575-576 (September 2013): 302–5. http://dx.doi.org/10.4028/www.scientific.net/kem.575-576.302.

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Among various inorganic antibacterial materials, TiO2 photocatalysis antibacterial materials possess unique properties including long lifespan, nontoxicity, high temperature resistance as well as high physical and chemical stability. More significantly, they are largely involved in many photocatalytic effects such as degradation of organics, purification of air, sewage disposal and self-cleaning.

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14

Castro-Hoyos, Angélica María, Manuel Alejandro Rojas Manzano, and Aníbal Maury-Ramírez. "Challenges and Opportunities of Using Titanium Dioxide Photocatalysis on Cement-Based Materials." Coatings 12, no. 7 (2022): 968. http://dx.doi.org/10.3390/coatings12070968.

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Since the early seventies with the work of Akira Fujishima on photocatalytic and superhydrophilic properties of titanium dioxide (TiO2), also known as the Honda–Fujishima effect, photocatalysis has been investigated and progressively implemented in cement-based materials towards the development of self-cleaning, air-purifying and antiseptic materials, buildings and infrastructure. Although important achievements have been obtained at the laboratory scale, their real scale application has had some limitations mainly due to the low efficiencies obtained during adverse environmental conditions. T

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15

Tian, Shuang, Yuxiao Feng, Ziye Zheng, and Zuoli He. "TiO2-Based Photocatalytic Coatings on Glass Substrates for Environmental Applications." Coatings 13, no. 8 (2023): 1472. http://dx.doi.org/10.3390/coatings13081472.

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To address environmental pollution and energy shortage issues, titanium dioxide (TiO2)-based photocatalysts, as an efficient pollution removal and fuel production technology, have been widely used in the field of photocatalysis. In practical applications, TiO2-based photocatalysts are usually prepared on various substrates to realize the separation of the catalyst from water and improve photocatalytic stability. Herein, the research progress of TiO2-based heterogeneous photocatalytic coatings deposited on glass substrates with various deposition techniques is reviewed. Such TiO2-based composit

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16

Zhu, Hai, Lizhen Wu, Xiang Meng, et al. "An anti-UV superhydrophobic material with photocatalysis, self-cleaning, self-healing and oil/water separation functions." Nanoscale 12, no. 21 (2020): 11455–59. http://dx.doi.org/10.1039/d0nr01038c.

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Ünal, Serdal, and Mehmet Canbaz. "Effect of industrial wastes on self-cleaning properties of concrete containing anatase-TiO2." Revista de la construcción 21, no. 3 (2022): 493–505. http://dx.doi.org/10.7764/rdlc.21.3.493.

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Concrete decomposing the organic compounds on because of natural or anthropogenic contaminating sources with photocatalysis existing in its structure is called self-cleaning concrete. In this study, the self-cleaning concrete with industrial waste has been searched from the point of mechanical and physical characteristics. Fly ash, blast furnace slag and sepiolite materials has been used as industrial waste in concrete. Titanium dioxide (TiO2) has been used as photocatalysis material. Specimens with the dimensions 15×15×15 cm were produced using 0 %, 10 %, 20 % and 30 % industrial wastes and 0

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18

Liao, Hung-Chou, Sheng-Min Yu, Wen-Ching Sun, et al. "Antireflective and Self-Cleaning Properties of SiO2-MgF2/TiO2 Double-Layer Films Prepared by Sol-Gel Method at Low Calcination Temperature." MRS Advances 2, no. 14 (2017): 777–82. http://dx.doi.org/10.1557/adv.2017.110.

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ABSTRACTSiO2-MgF2/TiO2 double-layer films with antireflective, self-cleaning and adherent properties were prepared by spin-coating SiO2-MgF2 and TiO2 sol on glass substrate successively and subsequently being calcined at 250°C. The optical and structural properties of films have been investigated by visible spectrophotometer and field emission scanning electron microscope, respectively. At the same time, self-cleaning property generated from superhydrophilicity and photocatalysis was obtained. The results indicated that the as-prepared SiO2-MgF2/TiO2 double-layer films show a maximum increase

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19

Balajka, Jan, Melissa A. Hines, William J. I. DeBenedetti, et al. "High-affinity adsorption leads to molecularly ordered interfaces on TiO2 in air and solution." Science 361, no. 6404 (2018): 786–89. http://dx.doi.org/10.1126/science.aat6752.

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Researchers around the world have observed the formation of molecularly ordered structures of unknown origin on the surface of titanium dioxide (TiO2) photocatalysts exposed to air and solution. Using a combination of atomic-scale microscopy and spectroscopy, we show that TiO2 selectively adsorbs atmospheric carboxylic acids that are typically present in parts-per-billion concentrations while effectively repelling other adsorbates, such as alcohols, that are present in much higher concentrations. The high affinity of the surface for carboxylic acids is attributed to their bidentate binding. Th

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20

Liu, Hui, Yawei Feng, Jiajia Shao, et al. "Self-cleaning triboelectric nanogenerator based on TiO2 photocatalysis." Nano Energy 70 (April 2020): 104499. http://dx.doi.org/10.1016/j.nanoen.2020.104499.

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21

Yakovlev, Grigory Ivanovich, Zarina Saidova, Iuliia Ginchitskaia, et al. "Dry Mix for Facade Self-Cleaning Silicate Paint." Materials Science Forum 1089 (May 26, 2023): 123–33. http://dx.doi.org/10.4028/p-23p5x9.

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This paper presents the results of a study on one-component dry mix used for the preparation of silicate-based facade paint with self-cleaning properties. The advantages of the developed composition include the ease of the mix preparation and application, increased adhesion of the coating to the base, and improved aesthetic qualities of the coating provided by its ability to self-clean due to the addition of nanotitanium dioxide, which enhances photocatalysis. In the course of the research work, the optimal quantitative content of the main components and functional additives was established. S

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22

Hamdany, Abdul Halim, Alfrendo Satyanaga, Dichuan Zhang, Yongmin Kim, and Jong R. Kim. "Photocatalytic Cementitious Material for Eco-Efficient Construction—A Systematic Literature Review." Applied Sciences 12, no. 17 (2022): 8741. http://dx.doi.org/10.3390/app12178741.

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Photoinduced processes governed by light activated TiO2 have been studied in many ways. One of the most active areas is the development of TiO2 photocatalysis technologies on their application for reducing environmental impacts. The immobilization of TiO2 on solid support, such as cementitious materials, greatly enhances its use in practical applications. In this review, a wide range of applications for achieving eco-efficient building using cementitious composite materials containing TiO2 photocatalyst was presented. The basic mechanism of photocatalysis, such as electron excitation, charge t

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23

Liu, Chang, Yuxuan Kong, Guojiang Xia, Xiancheng Ren, and Jing Zhang. "Ultraviolet Grafting of Bismuth Oxide Enhances the Photocatalytic Performance of PVDF Membrane and Improves the Problem of Membrane Fouling." Polymers 16, no. 16 (2024): 2322. http://dx.doi.org/10.3390/polym16162322.

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Photocatalytic membranes are crucial in addressing membrane fouling issues. However, the grafting amount of the catalyst on the membrane often becomes a key factor in restricting the membrane’s self-cleaning capability. To address the challenge, this manuscript proposes a method for solving membrane fouling, featuring high grafting rates of bismuth oxide (Bi2O3) and acrylic acid (AA), significant contaminant degradation capability, and reusability. A highly photocatalytic self-cleaning microfiltration membrane made of polyvinylidene fluoride bismuth oxide and acrylic acid (PVDF-g-BA) was prepa

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Chang, Ling Yu, Rui Ting Huo, and Ping Yang. "The Study of Surface Treatment with TiO₂ for PVC Coated Fabric." Advanced Materials Research 332-334 (September 2011): 64–67. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.64.

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PVC coated fabric has poor self-cleaning property. The surface treatment with TiO2 can improve the self-cleaning property of PVC coated fabric by photocatalysis. The surface treatment agent used in this experiment contains nano TiO2 power and PVDF. The treatment of coupling agent can improve the surface properties of nano TiO2 power and the performance of the surface treatment agent. The effects of coupling agent on the modification of nano TiO2 power and the surface morphology of the treated PVC coated fabric were researched by IR and SEM respectively. The photocatalysis of the top layer on t

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Gavrish, Vladimir, T. Chayka, Dar'ya Korsak, and A. Chayka. "MODIFICATION OF THE CEMENT MATRIX WITH A HIGHLY DISPERSED WO3 TUNGSTEN OXIDE POWDER WITH PHOTOCATALYTIC PROPERTIES." Construction and industrial safety, no. 37 (July 7, 2025): 67–75. https://doi.org/10.29039/2413-1873-2025-37-67-75.

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The paper presents the results of the study of photocatalytic activity under visible light of highly dispersed tungsten oxide powder WO3 obtained as a result of recycling of carbide products. Microstructural analysis of the tungsten oxide powder using scanning electron microscopy (SEM) before and after the photocatalysis process was performed. Test results of physical and mechanical properties (density, compressive strength, water absorption, total porosity) of cement matrix with different content of WO3 powder (1-5 wt.%) are presented. Preliminary analysis of the modified surface for self-cle

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26

Afzal, Shabana, Walid A. Daoud, and Steven J. Langford. "Self-cleaning cotton by porphyrin-sensitized visible-light photocatalysis." Journal of Materials Chemistry 22, no. 9 (2012): 4083. http://dx.doi.org/10.1039/c2jm15146d.

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Afzal, Shabana, Walid A. Daoud, and Steven J. Langford. "Visible-light self-cleaning cotton by metalloporphyrin-sensitized photocatalysis." Applied Surface Science 275 (June 2013): 36–42. http://dx.doi.org/10.1016/j.apsusc.2013.01.141.

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28

Li, Lin, Zhaoyue Liu, Qianqian Zhang, Chenhui Meng, Tierui Zhang, and Jin Zhai. "Underwater superoleophobic porous membrane based on hierarchical TiO2 nanotubes: multifunctional integration of oil–water separation, flow-through photocatalysis and self-cleaning." Journal of Materials Chemistry A 3, no. 3 (2015): 1279–86. http://dx.doi.org/10.1039/c4ta04699d.

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Superhydrophilic and underwater superoleophobic membranes based on hierarchical TiO<sub>2</sub> nanotubes integrated the functions of oil–water separation, flow-through photocatalysis and self-cleaning.

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Rocha Segundo, Iran, Salmon Landi Jr, Cátia Afonso, et al. "Applied Optics in the Development of Smart Asphalt Mixtures." EPJ Web of Conferences 266 (2022): 13021. http://dx.doi.org/10.1051/epjconf/202226613021.

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The functionalization of asphalt mixtures is carried out in order to provide new capabilities to the road pavements, with major social, environmental and financial benefits. Optical characterization techniques as well as optical processes like photocatalysis play a major role in the development of new asphalt mixtures with smart functions. These advanced capabilities which are being developed in asphalt mixtures are: photocatalytic, superhydrophobic, self-cleaning, de-icing/anti-ice, self-healing, thermochromic, and latent heat thermal energy storage. The main objective of this research work i

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Maury-Ramírez, Aníbal, Mario Rinke, and Johan Blom. "Low-Carbon Embodied, Self-Cleaning, and Air-Purifying Building Envelope Components Using TiO2 Photocatalysis, 3D Printing, and Recycling." Coatings 14, no. 9 (2024): 1228. http://dx.doi.org/10.3390/coatings14091228.

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This perspective article describes the past, present, and future directions on TiO2 photocatalysis, 3D concrete printing, and recycling for developing innovative building envelope components from façade skins. Using a methodology consisting of three phases, first the historical evolution of TiO2 photocatalysis, 3D concrete printing, and recycling policies was investigated. Second, the rationale and positioning with regard to the state of the art were developed. Third, the cementitious mix design assessment for 3D printing of the building envelope components, evaluation of the photocatalytic ac

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Khurram, Rooha, Aroosa Javed, Ruihua Ke, Cheng Lena, and Zhan Wang. "Visible Light-Driven GO/TiO2-CA Nano-Photocatalytic Membranes: Assessment of Photocatalytic Response, Antifouling Character and Self-Cleaning Ability." Nanomaterials 11, no. 8 (2021): 2021. http://dx.doi.org/10.3390/nano11082021.

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Photocatalysis and membrane technology in a single unit is an ideal strategy for the development of wastewater treatment systems. In this work, novel GO (x wt%)/TiO2-CA hybrid membranes have been synthesized via a facile non-solvent induced phase inversion technique. The strategy aimed to address the following dilemmas: (1) Effective utilization of visible light and minimize e−/h+ recombination; (2) Enhanced separation capability and superior anti-fouling and self-cleaning ability. The experimental results reveal that the integration of nano-composite (GO/TiO2) boosts the membrane properties w

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He, Chunyan, Jialin He, Sainan Cui, et al. "Novel Effective Photocatalytic Self-Cleaning Coatings: TiO2-Polyfluoroalkoxy Coatings Prepared by Suspension Plasma Spraying." Nanomaterials 13, no. 24 (2023): 3123. http://dx.doi.org/10.3390/nano13243123.

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Photocatalytic coatings can degrade volatile organic compounds into non-toxic products, which has drawn the attention of scholars around the world. However, the pollution of dust on the coating adversely affects the photocatalytic efficiency and service life of the coating. Here, a series of TiO2-polyfluoroalkoxy (PFA) coatings with different contents of PFA were fabricated by suspension plasma spraying technology. The results demonstrate that the hybrid coatings contain a large number of circular and ellipsoidal nanoparticles and a porous micron-nano structure due to the inclusion of PFA. Acc

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Toloman, Dana, Maria Stefan, Sergiu Macavei, Lucian Barbu-Tudoran, and Adriana Popa. "Photocatalytic Self-Cleaning PVDF Membrane Blended with MWCNT-ZnO Nanocomposites for RhB Removal." Coatings 13, no. 3 (2023): 594. http://dx.doi.org/10.3390/coatings13030594.

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Polyvinylidene fluoride (PVDF) membranes blended with various amounts of MWCNT-ZnO (0.1%–3%) nanocomposites were prepared by the phase inversion method. The effect of nanocomposites blending on the membrane structural and morphological properties was investigated by XRD, FT-IR and SEM techniques. Contact angle measurement reveals that the hydrophilicity of the membrane increases with the increase of nanocomposite content; a reduction of the contact angle from 103° for PVDF to 49° for hybrid membrane was obtained. An optimum amount of 0.5% of MWCNT-ZnO blended in a PVDF hybrid membrane assured

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Wawrzyniak, Beata, Antoni Waldemar Morawski, and Beata Tryba. "Preparation of TiO2-nitrogen-doped photocatalyst active under visible light." International Journal of Photoenergy 2006 (2006): 1–8. http://dx.doi.org/10.1155/ijp/2006/68248.

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This study examined the photocatalytic degradation of phenol and azo dyes such as Reactive Red 198 and Direct Green 99 by photocatalysis over amorphous hydrated titanium dioxide (TiO2· H2O) obtained directly from the sulphate technology installation modified in gaseous ammonia atmosphere. The photocatalysts were used in the solution and coated on the glass plate after sandblasting. The highest rate of phenol degradation in the solution was obtained for catalysts calcinated at 700°C (6.5% wt.), and the highest rate of dye decolorization was found for catalysts calcinated at 500°C and 600°C (ca.

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Kumar, Pavan, Ujwal Shreenag Meda, Sachin K C, and Radhakrishna . "Photocatalytic Cementitious Materials to Reduce Air Pollution: Review." ECS Transactions 107, no. 1 (2022): 4863–74. http://dx.doi.org/10.1149/10701.4863ecst.

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Oxides of nitrogen (NOx) are highly reactive and major air pollutants generated from the vehicular emission and burning of fossil fuels in industries. These pollutants will create tropospheric ozone, formation of urban smog and occurrence of acid rain, etc. A potential solution for this would be heterogeneous photocatalysis. Using photocatalysts such as titanium dioxide (TiO2) inorganic and organic matter present in the air, such as NOx and VOCs can be adsorbed and oxidized by the action of ultraviolet (UV) light (sunlight). This technology is promising for cities with highly congested areas h

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Ma, Jun, Boyou Wang, Zhe Gong, Xiande Yang, and Yongqian Wang. "Morphology-controllable synthesis and application of TiO2 nanotube arrays with “photocatalysis and self-cleaning” synergism." New Journal of Chemistry 44, no. 15 (2020): 5774–83. http://dx.doi.org/10.1039/d0nj00743a.

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Salvadores, Federico, Orlando Mario Alfano, and María de los Milagros Ballari. "ASSESSMENT OF THE INDOOR AIR PURIFICATION BY PHOTOCATALYTIC PAINTS." Latin American Applied Research - An international journal 50, no. 2 (2020): 71–76. http://dx.doi.org/10.52292/j.laar.2020.352.

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Photocatalytic building materials containing TiO2 were extensively studied for outdoor applications using solar radiation. Nowadays, the market offers a wide variety of these materials with self-cleaning and air purification functionalities. However, heterogeneous photocatalysis applied in indoor construction materials was less developed. The objective of this work is to investigate the photocatalytic performance of carbon doped TiO2 in replacement of the normal pigments in indoor wall paint formulations. To achieve this goal, the photocatalytic oxidation of acetaldehyde in gas phase was carri

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Lucas, S. S., and J. L. Barroso de Aguiar. "Multifunctional wall coating combining photocatalysis, self-cleaning and latent heat storage." Materials Research Express 5, no. 2 (2018): 025702. http://dx.doi.org/10.1088/2053-1591/aaa82f.

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Banerjee, Swagata, Dionysios D. Dionysiou, and Suresh C. Pillai. "Self-cleaning applications of TiO2 by photo-induced hydrophilicity and photocatalysis." Applied Catalysis B: Environmental 176-177 (October 2015): 396–428. http://dx.doi.org/10.1016/j.apcatb.2015.03.058.

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Abdrabo, Merna, Ahmed Elkaseer, Engy Elshazly, Mohamed S. El-Deab, and Iman El-Mahallawi. "Experimental Examination of Enhanced Nanoceramic-Based Self-Cleaning Sprays for High-Efficiency Hydrophobic Photovoltaic Panels." Coatings 14, no. 10 (2024): 1239. http://dx.doi.org/10.3390/coatings14101239.

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Dust deposition poses a significant challenge in the implementation of photovoltaic panels (PV) especially in hot and dusty environments, such as the Middle East and North Africa (MENA) region. This issue leads to progressive degradation of PV efficiency and output power. In this context, this research work aims to improve PV performance by developing self-cleaning sprays as a preventative solution. Different concentrations of SnO2 and TiO2 nanoceramics were dispersed in isopropyl alcohol solvent to reduce the mixture’s viscosity and facilitate smooth spraying on solar panels, whose efficiency

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Hamidi, Fatemeh, and Farhad Aslani. "TiO2-based Photocatalytic Cementitious Composites: Materials, Properties, Influential Parameters, and Assessment Techniques." Nanomaterials 9, no. 10 (2019): 1444. http://dx.doi.org/10.3390/nano9101444.

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Applications of heterogeneous photocatalytic processes based on semiconductor particles in cement-based materials have received great attention in recent years in enhancing the aesthetic durability of buildings and reducing global environmental pollution. Amongst all, titanium dioxide (TiO2) is the most widely used semiconductor particle in structural materials with photocatalytic activity because of its low cost, chemically stable nature, and absence of toxicity. Utilization of TiO2 in combination with cement-based materials would plunge the concentration of urban pollutants such as NOx. In f

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Chaturvedi, Shalini, and Pragnesh N. Dave. "Environmental Application of Photocatalysis." Materials Science Forum 734 (December 2012): 273–94. http://dx.doi.org/10.4028/www.scientific.net/msf.734.273.

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Recent interest and studies in environmental photo-chemistry, in natural photosynthesis, and chemical methods for solar energy transformations has contributed greatly to our knowledge and understanding of the various phenomena related to both photo-chemistry and catalysis. As an emerging nanotechnology come together with the chemical mechanisms of photo-catalysis, the photo-catalytic nanoparticle titanium dioxide offers a new meaning of remediation and degradation on volatile organic compounds in the aqueous and airs streams. In this chapter we discuss about application of photocatalysis in en

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Bengtsson, N., and M. Castellote. "Heterogeneous photocatalysis on construction materials: effect of catalyst properties on the efficiency for degrading NOx and self cleaning." Materiales de Construcción 64, no. 314 (2014): e013. http://dx.doi.org/10.3989/mc.2014.06713.

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Lu, Cheng-Gong, Chu-Jie Jiao, Xiu-Cheng Zhang, Wen-Cong Lin, and Xue-Fei Chen. "Fly Ash-Supported Photocatalysts: Synthesis, Applications, and Advances in Modification Technology." Crystals 15, no. 3 (2025): 223. https://doi.org/10.3390/cryst15030223.

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Fly ash, a primary solid waste product of coal combustion, poses severe threats to human health and the environment due to its massive accumulation. Leveraging the modified porous structure and engineered adsorptive properties of fly ash, its integration with nano-photocatalytic materials can achieve dispersion and stabilization of the photocatalyst, significantly enhancing photocatalytic activity while enabling a synergistic effect between adsorption and photocatalysis. This paper focuses on the issue of agglomeration in semiconductor photocatalytic materials and briefly reviews the preparati

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Wang, Jun, Mitang Wang, Yingliang Tian, and Wei Deng. "A Review on Photocatalytic Glass Ceramics: Fundamentals, Preparation, Performance Enhancement and Future Development." Catalysts 12, no. 10 (2022): 1235. http://dx.doi.org/10.3390/catal12101235.

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Photocatalytic technology is considered as one of the most attractive and promising technologies to directly harvest, convert and store renewable solar energy for generating sustainable and green energy and a broad range of environmental applications. However, the use of a photocatalyst in powder or coating forms restricts its applications due to its disadvantages, such as difficulty in recovery of nano-powder, secondary pollution, low adhesion between photocatalytic coating and substrate material, short service life of photocatalytic film and so on. The investigation and application of photoc

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Cassar, Luigi. "Photocatalysis of Cementitious Materials: Clean Buildings and Clean Air." MRS Bulletin 29, no. 5 (2004): 328–31. http://dx.doi.org/10.1557/mrs2004.99.

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AbstractWhile the primary function of concrete is structural, its pervasiveness in our society lends it to other functions and creates the need for it to maintain its integrity and aesthetic quality. Therefore, concrete with added functionality–for example, self-cleaning characteristics and the ability to remove pollutants–is desirable. Heterogeneous photocatalysis (e.g., gas–solid or liquid–solid catalytic processes caused by light irradiation) by semiconductor particles or coatings has now reached a high level of development and is a promising technology for the reduction of global environme

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Folli, Andrea, Claus Pade, Tommy Bæk Hansen, Tiziana De Marco, and Donald E. Macphee. "TiO2 photocatalysis in cementitious systems: Insights into self-cleaning and depollution chemistry." Cement and Concrete Research 42, no. 3 (2012): 539–48. http://dx.doi.org/10.1016/j.cemconres.2011.12.001.

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Riaz, Nadia, Muhammad Saqib Khan, Muhammad Bilal, Sami Ullah, and Abdullah G. Al‐Sehemi. "Photocatalytic Inactivation of Bioaerosols: A Short Review on Emerging Technologies." Current Analytical Chemistry 17, no. 1 (2020): 31–37. http://dx.doi.org/10.2174/1573411016999200729115254.

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Background: Formation of the microbial colonies in the wet and damp environment affects the indoor air quality thus posing severe threats to human health. Health problems or Building- associated illness (any disease or infection) caused by being in a closed space or building are generally separated into two categories including building-related illness (BRI) and sick building syndrome (SBS). Considered by Pathognomy research, that biological pollutants or bioaerosols (bacteria, fungi and viruses like coronavirus), are the significant inducement for “sick building syndrome (SBS)” associated wit

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Wang, Xuan, Hao Ding, Sijia Sun, et al. "Tunable Adhesive Self-Cleaning Coating with Superhydrophobicity and Photocatalytic Activity." Nanomaterials 11, no. 6 (2021): 1486. http://dx.doi.org/10.3390/nano11061486.

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Superhydrophobic coatings with intelligent properties have attracted much attention because of their wide application in many fields. However, there is a limited amount of literature on superhydrophobic coatings whose wettability and adhesion can be adjusted by UV irradiation and calcination at the same time. In this study, amorphous SiO2 microspheres (A-SiO2) and nano-TiO2 particles (N-TiO2) were used to fabricate A-SiO2/N-TiO2 composites by wet grinding, and then, they were modified with polydimethylsiloxane (PDMS) and sprayed onto substrate surfaces to obtain a tunable adhesive superhydroph

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Bersch, Jéssica D., Inês Flores-Colen, Angela B. Masuero, and Denise C. C. Dal Molin. "Photocatalytic TiO2-Based Coatings for Mortars on Facades: A Review of Efficiency, Durability, and Sustainability." Buildings 13, no. 1 (2023): 186. http://dx.doi.org/10.3390/buildings13010186.

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Due to the urgent need for a more sustainable built environment and actions against climate change, this paper presents a literature review about photocatalytic TiO2-based thin layers to be applied on mortars in facades. Photocatalysis may be a potential strategy against current environmental and climate challenges by transforming or eliminating hazardous greenhouse gases from the atmosphere. The main subjects researched were the coatings’ efficiency (which encompassed their self-cleaning ability, depolluting effect, and antimicrobial properties), durability, and sustainability. The method was

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