Materials Transactions Online

Materials Transactions, Vol.59 No.05 (2018) pp.811-815
© 2018 The Japan Institute of Metals and Materials

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.


(Received 2018/01/31; Accepted 2018/02/19; Published 2018/04/25)

Keywords: hydrothermal, photocatalytic, acetone, sol-gel

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