Preparation and Photocatalytic Activity of Nano-TiO2/Sepiolite Catalyst

doi:10.7517/j.issn.1674-0475.2005.06.421

Imaging Science and Photochemistry ›› 2005, Vol. 23 ›› Issue (6): 421-427.DOI: 10.7517/j.issn.1674-0475.2005.06.421

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Preparation and Photocatalytic Activity of Nano-TiO₂/Sepiolite Catalyst

ZHANG Tian-yong¹, LI Bin¹, CHAI Yi¹, FEI Xue-ning²

1. Department of Fine Chemicals and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China;
2. Department of Environmental Engineering, Tianjin Institute of Urban Construction, Tianjin 300384, P. R. China

Received:2005-07-06 Revised:2005-09-13 Online:2005-11-23 Published:2005-11-23

Abstract

Abstract: A101/sepiolite catalyst was manufactured by directly mixing TiO₂(A101) with sepiolite.The photocatalytic degradation of DEP(diethyl phthalate) in water was studied with sepiolite supported nanoscale TiO₂ as catalyst.The results of experiments showed that the rate of photocatalytic degradation was affected by the amount of catalyst and the load of TiO₂.For A101/sepiolite catalyst,the load of TiO₂ has great effect on its photocatalytic activity and the rate of DEP's degradation,the carrier catalyst of 5% nanoTiO₂ amounts showed the best photocatalytic activity.The morphography and crystal form of the supported catalyst was analyzed by x-ray diffraction(XRD) and scanning electronic microscope(SEM).

Key words: diethyl phthalate, nanoscale TiO₂, sepiolite, photocatalytic degradation, support

CLC Number:

ZHANG Tian-yong, LI Bin, CHAI Yi, FEI Xue-ning. Preparation and Photocatalytic Activity of Nano-TiO₂/Sepiolite Catalyst[J]. Imaging Science and Photochemistry, 2005, 23(6): 421-427.

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Preparation and Photocatalytic Activity of Nano-TiO₂/Sepiolite Catalyst

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