Study on Preparation and Photocatalytic Performance of Co-Doped TiO2 with Cu and Ce

Autor: Zhao, Jiang Ping, Yang, Xiao Ni, Zhang, Hao
Zdroj: Advanced Materials Research; November 2011, Vol. 399 Issue: 1 p722-726, 5p
Abstrakt: In this paper, Cu-Ce/TiO2 nano-particles, whose molar ratio account for 2%,2.5%,3%,3.5% and 4% respectively, were synthesized by sol-gel method, using Ti(C4H9O)4 as the raw material, And the photocatalytic activities of the prepared samples were investigated by degrading formaldehyde gas under pure visible light through simulating indoor environment in the environmental test chamber. Moreover, X-Ray Powder Diffraction (XRD) and Ultraviolet-visible spectrophotometer were applied to analyze the crystallite size and optical properties of the samples. It is indicated that the sample of 2.5% performs best in the test. Besides, photocatalytic mechanism of co-doping of Cu-Ce was discussed.
Databáze: Supplemental Index