IMPACT OF NANOSTRUCTURE TYPES AND THIN FILM THICKNESS ON THE PHOTOCATALYTIC PERFORMANCE OF TiO2/V2O5 COMPOSITE COATINGS
Aimbetova I. Kuzmin A. Aimbetova E. Baigenzhenov O.
2023Begell House Inc.
Nanoscience and Technology
2023#14Issue 41 - 15 pp.
Titanium dioxide is a very promising compound for various applications. One of the important areas of applicability is photocatalysis. The wide bandgap of the titanium dioxide limits its photocatalytic activity by the utilization of the ultraviolet area of the irradiation, which is ~ 3%. Expanding the area to visible light spectra is possible by doping titanium dioxide with metals and their oxides. Vanadium pentoxide is one of the widespread dopants that allows the narrowing of the bandgap and improves the efficiency of titanium dioxide–based photoanodes. Research into the area of the improvement of titanium dioxide photocatalytic performance with the help of vanadium pentoxide is widespread and in high demand. In this research, for the first time, the effect of vanadium pentoxide thin film thickness on the photoanode based on titanium dioxide nanostructured substrates of various types was studied. An optimal thickness of that thin film was discovered that allows one to increase in the photocurrent density of the photoanode up to 400%.
performance , photocatalyst , photocurrent , titanium dioxide , vanadium pentoxide
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Khoja Akhmet Yassawi International Kazakh-Turkish University, Turkestan, Kazakhstan
Institute for Engineering Thermal Physics of National Academy of Sciences of Ukraine, Kiev, Ukraine
National Center for Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan, Almaty, Kazakhstan
Satbayev University, Almaty, Kazakhstan
Khoja Akhmet Yassawi International Kazakh-Turkish University
Institute for Engineering Thermal Physics of National Academy of Sciences of Ukraine
National Center for Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan
Satbayev University
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