NDLI: Light energy conversion device for photocatalyst 2.0%WO$_{3}$-TiO$_{2}$ with oxygen vacancies for water splitting

Content Provider	Springer Nature Link
Author	Tong, Hai xia Chen, Qi yuan Hu, Hui ping Yin, Zhou lan
Copyright Year	2010
Abstract	Using carbon felt, polytetrafluoroethylene latex and powder catalyst to assembly a light energy conversion device, the photocatalytic activity of catalyst 2.0%WO$_{3}$-TiO$_{2}$ (2%WO$_{3}$ compounding TiO$_{2}$) with oxygen vacancies was studied through the water splitting for O$_{2}$ evolution, using a high pressure mercury lamp as the light source and Fe$^{3+}$ as the electron acceptor in two different devices: an ordinary photolysis device with catalyst powder suspending through a magnetic stirrer and a self-assembly light energy conversion device. The results show that after 12 h irradiation, the photocatalytic activity of 2.0%WO$_{3}$-TiO$_{2}$ with oxygen vacancies in the self-assembly light energy conversion device is higher than that of the ordinary photolysis device, and the amount of oxygen evolution is about 12 and 9 mmol/L respectively in these two devices. After 12 h, the rates of O$_{2}$ evolution are slow in each device and the photocatalyst almost loses the photoactivity in the ordinary photolysis device. So, compared with the ordinary photocatalytic device, the rate of oxygen evolution and the life time of the catalyst are improved in the self-assembly light energy conversion device.
Starting Page	943
Ending Page	946
Page Count	4
File Format	PDF
ISSN	10059784
Journal	Journal of Central South University of Technology
Volume Number	17
Issue Number	5
e-ISSN	19930666
Language	English
Publisher	Central South University
Publisher Date	2010-11-09
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	light energy conversion device photocatalytic activity O$_{2}$ evolution oxygen vacancy photo splitting water Metallic Materials Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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