Visible-Light Photocatalytic Activity of the Bi₂Ti₄O₁₁ Nanorods

Abstract

The Bi2Ti4O11 nanorods were obtained by a one-step alcohol-thermal method. The sample was synthesized at 100°C and calcined at 600°C, using Bi(NO3)3•5H2O, TiCl4 and absolute ethanol as reactants. It then characterized by XRD, SEM and UV-vis DRS. The results showed that the sample was nanorod with diameter about 30nm and length about 200nm. The photocatalytic experiment represented that the photocatalyst could effectively degrade more than 99% Rhodamine B( RhB) within 85 min under irradiating of visible light.

In Situ Fabrication of Bi2Ti2O7/TiO2 Heterostructure Submicron Fibers for Enhanced Photocatalytic Activity

“…Several of these materials have been reported as visible light-driven photocatalysts, for example: Bi 2 Ti 2 O 7 nanorods, Bi 12 TiO 20 nanowires, and Bi 20 TiO 32 nanosheets [12–14]. Especially, Bi 2 Ti 2 O 7 with its pyrochlore structure forms a shallow acceptor energy level in the forbidden band because of a non-stoichiometric ratio of Bi 1.74 Ti 2 O 6.62 and the Bi vacancy [15].…”