Hydrothermal Synthesis of TiO2/WO3 Compositions And Their Photocatalytic Activity

被引：0
|
作者：
Pyachin, Sergey A. [1 ]
Karpovich, Natalia F. [1 ]
Zaitsev, Alexey V. [1 ]
Makarevich, Konstantin S. [1 ]
Burkov, Alexander A. [1 ]
Ustinov, Alexander Yu. [2 ]
机构：
[1] Russian Acad Sci, Far Eastern Branch, Khabarovsk Sci Ctr, Inst Mat, 153 Tikhookeanskaya St, Khabarovsk 680042, Russia
[2] Russian Acad Sci, Far Eastern Branch, Inst Chem, 159 Pr 100 Letiya Vladivostoka, Vladivostok 690022, Russia
来源：
ASIA-PACIFIC CONFERENCE ON FUNDAMENTAL PROBLEMS OF OPTO- AND MICROELECTRONICS | 2017年 / 10176卷
关键词：
photocatalysis; titanium dioxide; tungsten oxide; doping; hydrothermal synthesis; diffuse reflection; band gap; photocatalytic activity;
D O I：
10.1117/12.2268789
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Photocatalytic activity, optical properties, thermal stability, phase patterns and morphology of nano-size. TiO2/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 980 degrees C . Catalytic activity of TiO2/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.
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页数：4
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