A Simple Way to Prepare C-doped TiO2 with Visible Light Photocatalytic Activity
A visible-light-active C-doped TiO2 photocatalyst was prepared by a simple wet process. The XPS analysis results showed that carbon was doped into TiO2 particles and one kind of carbonate species with Ti-O-C structure was formed. The obtained sample showed obvious absorption in the 400-800 nm range in UV-vis spectra. By degrading of methyl orange (MO) solution under visible light irradiation (l>420 nm), the apparent rate constant (kapp) of S170 was about 10 times larger than that of P25. The preparation procedure of such C-doped catalyst can be easily scaled up for industrial production due to its simplicity.
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
L. H. Nie et al., "A Simple Way to Prepare C-doped TiO2 with Visible Light Photocatalytic Activity", Advanced Materials Research, Vols. 239-242, pp. 1175-1179, 2011