Title :
Fabrication and photoelectrochemical properties of nanoporous WO3 film
Author :
Zhang, Xuming ; Huo, Kaifu ; Hu, Liangsheng ; Chu, Paul K.
Author_Institution :
Hubei Province Key Lab. of Refractories & Ceramics, Wuhan Univ. of Sci. & Technol., Wuhan, China
Abstract :
Nanoporous tungsten oxide (WO3) with pore size of about 80 nm has been fabricated by anodization in a 1 M Na2SO4 solution with 0.5 wt% NaF (pH 4.0) at the anodization voltage of 40 V. The photoelectrochemical properties and photocatalytic activity of the nanoporous WO3 film are investigated under visible light. The results show that the WO3 nanoporous structure has better photoactivity than the plane structure under visible light irradiation and is a potential photocatalyst to decompose contamination in water under visible light.
Keywords :
anodisation; catalysis; nanoporous materials; pH; photochemistry; photoelectrochemistry; thin films; tungsten compounds; Na2SO4 solution; WO3; anodization; nanoporous film; nanoporous structure; nanoporous tungsten oxide; pH; photoactivity; photocatalyst; photocatalytic activity; photoelectrochemisrty; pore size; visible light irradiation; water; Fabrication; Nanoporous materials;
Conference_Titel :
Nanoelectronics Conference (INEC), 2010 3rd International
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3543-2
Electronic_ISBN :
978-1-4244-3544-9
DOI :
10.1109/INEC.2010.5425018
