A facile strategy to prepare Fe3+ modified brookite TiO2 with high photocatalytic activity under ultraviolet light and visible light

作者：Wang, Yuhang; Lkhamjav, Sukhbaatar; Qiu, Bocheng; Dong, Chencheng; Dong, Chunyang; Zhou, Yi; Shen, Bin; Xing, Mingyang^*; Zhang, Jinlong^*

来源：Research on Chemical Intermediates, 2017, 43(4): 2055-2066.

DOI：10.1007/s11164-016-2746-x

• Brookite titanium dioxide
• Fe3+
• Modified
• Photocatatlytic

Modification of brookite titanium dioxide (TiO2) for the treatment of typical pollutants is a great challenge, owing to its poor chemical stability and the difficulty involved in obtaining it. In this paper, we report a facile method to prepare Fe3+ modified brookite TiO2. The Fe3+ modified brookite TiO2 catalysts exhibit enhanced absorption in visible light region and efficient separation of photo-generated electrons and holes. Meanwhile, we investigate the effect of the modified contents of Fe3+ on the photocatalytic activity, and the optimum Fe3+ content is obtained at 2 wt% that shows the highest photocatalytic activity for the degradation of Rhodamine B both under UV and visible light irradiation. The traps induced by the Fe3+ doping have been well studied here, which are expected to contribute to the narrowing of the band gap of brookite and the separation of electrons and holes.

• 出版日期2017-4
• 单位华东理工大学