Photocatalytic activity of nano-CuO/TiO<sub>2</sub> composites prepared by a simple impregnated method

WANG Bao-wei; SUN Qi-mei; LI Yan-ping; LIU Si-han

Volume 41 Issue 06

Jun. 2013

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WANG Bao-wei, SUN Qi-mei, LI Yan-ping, LIU Si-han. Photocatalytic activity of nano-CuO/TiO2 composites prepared by a simple impregnated method[J]. Journal of Fuel Chemistry and Technology, 2013, 41(06): 741-747.

Citation:

WANG Bao-wei, SUN Qi-mei, LI Yan-ping, LIU Si-han. Photocatalytic activity of nano-CuO/TiO₂ composites prepared by a simple impregnated method[J]. Journal of Fuel Chemistry and Technology, 2013, 41(06): 741-747.

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Photocatalytic activity of nano-CuO/TiO₂ composites prepared by a simple impregnated method

Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Received Date: 2012-12-06
Rev Recd Date: 2013-01-06
Publish Date: 2013-06-30

Abstract

Abstract

CuO/TiO₂ composites were prepared by a simple impregnated method with Cu(NO₃)₂·3H₂O and P25 as precursors. The characteristic of photocatalysts were analyzed by N₂-physisorption, XRD, TEM, UV-vis DRS spectra. In this paper, the effects of Cu content, the scattered catalyst amount, calcination temperature of the photocatalyst and methanol concentration for the photocatalytic activity of CuO/TiO₂ composites were studied. We also investigated the stability of the catalyst and proposed a mechanism of the photocatalytic process. The results suggested that the appropriate content of Cu component in CuO/TiO₂ is 2.0%~7.5% and hydrogen production rate can reach 1 022 μmol/(h·g) at 2.0% of Cu content, 10% of methanol concentration, 350℃ of calcination temperature and 1.0 g/L of scattered catalyst amount. It was also demonstrated that CuO/TiO₂ photocatalyst had a stable activity for H₂ evolution.
- TiO₂,
- CuO,
- photocatalyst,
- hydrogen,
- visible light

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References(27)

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