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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.59  No.5 (2018)  >  pp.811-815

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Comparison of the Photocatalytic Efficience for Cu and N Co-Doped TiO2 by Sol-Gel and Xerogel-Hydrothermal Methods

Cuiping Liu, Zhifeng Liu and Yuwen Zhu
School of Science, Tianjin Chengjian University, China

In this study, mesoporous Cu and N doped TiO2 crystals were synthesized with Cu and N doped titania by xerogel-hydrothermal treatment and sol-gel treatment. The characteristics of Cu and N doped TiO2 were investigated with XRD, UV-vis, XPS and N2 sorption analysis. The photocatalytic activity of samples was evaluated by the photocatalytic oxidation of acetone under ultraviolet light. The photocatalytic activity of the xerogel-hydrothermal modified Cu and N doped TiO2 was considerably higher than that of the sol-gel modified Cu and N doped TiO2. This enhanced photoactivity is related to the smaller particle sizes, bicrystalline, the smaller pores and the larger specific area.

hydrothermal, photocatalytic, acetone, sol-gel

Received: January 31, 2018
Accepted: February 19, 2018 , Published online: April 25, 2018
The Japan Institute of Metals and Materials



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