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Proceedings Paper

Hydrothermal Synthesis of TiO2/WO3 Compositions And Their Photocatalytic Activity
Author(s): Sergey A. Pyachin; Natalia F. Karpovich; Alexey V. Zaitsev; Konstantin S. Makarevich; Alexander A. Burkov; Alexander Yu. Ustinov
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Paper Abstract

Photocatalytic activity, optical properties, thermal stability, phase patterns and morphology of nano-size ТiО2/WO3 compositions obtained from organic precursors through hydrothermal synthesis have been studied. It has been shown that doping of anatase nanoparticles with tungsten W+6 results in particle diameter reduction from 35 to 10 nm; decrease in width of the band gap from 3.15 eV to 2.91 eV and increase in temperature of phase transition of anatase to rutile up to 980оС. Catalytic activity of ТiО2/WO3 (4 mol.%) composition under photochemical methylene blue (MB) oxidation by simulated solar light exceeds that of undoped anatase (obtained in the same way) 6-fold.

Paper Details

Date Published: 14 December 2016
PDF: 4 pages
Proc. SPIE 10176, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics, 101760M (14 December 2016); doi: 10.1117/12.2268789
Show Author Affiliations
Sergey A. Pyachin, Institute of Materials (Russian Federation)
Natalia F. Karpovich, Institute of Materials (Russian Federation)
Alexey V. Zaitsev, Institute of Materials (Russian Federation)
Konstantin S. Makarevich, Institute of Materials (Russian Federation)
Alexander A. Burkov, Institute of Materials (Russian Federation)
Alexander Yu. Ustinov, Institute of Chemistry (Russian Federation)

Published in SPIE Proceedings Vol. 10176:
Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics
Yuri N. Kulchin; Roman V. Romashko; Alexander V. Syuy, Editor(s)

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