Investigation of the Visible Light-Sensitive ZnO Photocatalytic Thin Films
ZnO photocatalytic thin films deposited on a glass substrate are obtained by chemical spraying technique, and they are active in the visible light spectrum. Optical studies have shown that ZnO thin films doped by nickel impurities absorb visible light at wavelengths from 400nm to 600nm. At the same time, this absorption rate increases with the increase of concentration of nickel impurities. At high concentration (5%), the absorption of light is reduced in the visible area, but after heat treatment at 6000C the light absorption in these samples improves, which allows us to conclude that the observed effect is caused by a violation of the homogeneity of the distribution of nickel impurities and the creation of agglomerates. Decoration of ZnO thin film surfaces by silver clusters improves light absorption, as it happens to the nanopowders, but in the case of thin films, this effect is much smaller. Experiments on methylene blue determine the significance of photocatalytic activity in the visible area of sun irradiation of ZnO thin films containing nickel impurities, which are obtained by chemical spraying technique.
M. Kaneko, I. Okura, Photocatalisis science and technology, Springer, 2002
V. Kumaravel, S. Mathew, J. Bartlett, S. C. Pillai, “Photocatalytic hydrogen production using metal doped TiO2: A review of recent advances”, Applied Catalysis B: Enviromental, Vol. 244, pp. 1021-1064, 2019 DOI: https://doi.org/10.1016/j.apcatb.2018.11.080
W. Wang, G. Huang, J. C. Yu, P. K. Wong, “Advances in photocatalytic disinfection of bacteria: Development of photocatalysts and mechanisms”, Journal of Environmental Sciences, Vol. 34, pp. 232–247, 2015 DOI: https://doi.org/10.1016/j.jes.2015.05.003
H. A. Maddah, “Numerical analysis for the oxidation of phenol with TiO2 in wastewater photocatalytic reactors”, Engineering, Technology & Applied Science Research, Vol. 8, No. 5, pp. 3463-3469, 2018 DOI: https://doi.org/10.48084/etasr.2304
M. Mahshidnia, A. Jafarian, “Forecasting wastewater treatment results with an ANFIS intelligent system”, Engineering, Technology & Applied Science Research, Vol. 6, No. 5, pp. 1175-1181, 2016 DOI: https://doi.org/10.48084/etasr.745
Z. Y. Ilerisoy, Y. Takva, “Nanotechnological developments in structural design: Load-bearing materials”, Engineering, Technology & Applied Science Research, Vol. 7, No. 5, pp. 1900-1903, 2017 DOI: https://doi.org/10.48084/etasr.1414
M. Kalbacova, J. M. Macak, F. Schmidt-Stein, C. T. Mierke, P. Schmuki, “TiO2 nanotubes: Photocatalyst for cancer cell killing”, Physica Status Solidi (RRL)–Rapid Research Letters, Vol. 2, No. 4, pp. 194–196, 2008 DOI: https://doi.org/10.1002/pssr.200802080
G. Sadanandam, L. Zhang, M. S. Scurrell, “Enhanced photocatalytic hydrogen formation over Fe-loaded TiO2 and g-C3N4 composites from mixed glycerol and water by solar irradiation”, Journal of Renewable and Sustainable Energy, Vol. 10, pp. 034703-034708, 2018 DOI: https://doi.org/10.1063/1.5021350
S. Higashimoto, “Titanium-dioxide-based visible-light-sensitive photocatalysis: Mechanistic insight and applications”, Catalysts, Vol. 9, No. 2, pp. 201-209, 2019 DOI: https://doi.org/10.3390/catal9020201
S. Kaufhold, L. Petermann, D. Sorsche, S. Rau, ““Trojan horse” effect in photocatalysis: How anionic silver impurities influence apparent catalytic activity”, Chemistry-A European Journal, Vol. 23, No. 10, pp. 2271-2274, 2017 DOI: https://doi.org/10.1002/chem.201605391
A. A. Aboud, A. Mukherjee, N. Revaprasadu, A. N. Mohamed, “The effect of Cu-doping on CdS thin films deposited by the spray pyrolysis technique”, The Journal of Materials Research and Technology, Vol. 8, No. 2, pp. 2021-2030, 2019 DOI: https://doi.org/10.1016/j.jmrt.2018.10.017
R. Venkatesan, S. Velumani, K. Ordon, M. Makovska-Janusik, G. Corbel, A. Kassiba, “Nanostructured bismuth vanadate (BiVO4) thin films for efficient visible light photocatalysis”, Materials Chemistry and Physics, Vol. 205, pp. 325-333, 2018 DOI: https://doi.org/10.1016/j.matchemphys.2017.11.004
C. Bogatu, M. Covei, D. Perniu, I. Tismanar, A. Duta, “Stability of the Cu2ZnSnS4/TiO2 photocatalytic thin films active under visible light irradiation”, Catalysis Today, Vol. 328, pp. 79-84, 2019 DOI: https://doi.org/10.1016/j.cattod.2018.11.031
A. Mhamdi, A. Boukhachem, M. Madani, H. Lachheb, K. Boubaker, A. Amlouk, M. Amlouk, “Study of vanadium doping effects on structural, opto-thermal and optical properties of sprayed ZnO semiconductor layers”, Journal of Optik, Vol. 124, pp. 3764–3770, 2013 DOI: https://doi.org/10.1016/j.ijleo.2012.11.074
T. Khoperia, G. Mamniashvili, M. Nadareishvili, T. Zedginidze, “Competitive nanotechnology for deposition of films and fabrication of powder-like particles”, ECS Transactions, Vol. 35, pp. 17-30, 2011 DOI: https://doi.org/10.1149/1.3640401
T. Khoperia, T. Zedginidze, K. Kvavadze, M. Nadareishvili, “Development of competitive nanotechnologies for solution of challenges in photocatalysis, electronics and composites fabrication”, 212th ECS Meeting, Washington DC, USA, October 7-12, 2007
D. Japaridze, D. Daraselia, E. Chikvaidze, T. Gogoladze, M. Nadareishvili, T. Gegechkori, T. Zedginidze, T. Petriashvili, G. Mamniashvili, A. Shengelaya, “Magnetic properties and photocatalytic activity of the TiO2 micropowders and nanopowders coated by Ni nanoclusters”, Journal of Superconductivity and Novel Magnetism, Vol. 32, No. 10, pp. 3211-3216, 2019 DOI: https://doi.org/10.1007/s10948-019-5088-2
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