Highly active TiO2/g-C3N4/G photocatalyst with extended spectral response towards selective reduction of nitrobenzene

By Liqiang Zhang, Xing He, Xiuwen Xu, Chao Liu, Yongli Duan, Liqiang Hou, Qidong Zhou, Chi Ma, Xiaopeng Yang, Rui Liu and 4 more. 2017

190 citations recorded by the source corpus.

Abstract A simple self-assembly photochemical reduction method has been proposed to prepare highly photocatalytic TiO 2 nanowire/g-C 3 N 4 nanosheet/graphene heterostructures (TiO 2 /g-C 3 N 4 /G). In this hybrid structure, graphene enhances the charge transportation during photocatalytic process, and TiO 2 nanowires prevent graphene and g-C 3 N 4 from restacking. Meanwhile, g-C 3 N 4 with a more suitable band gap, extends the adsorption edge of the TiO 2 /g-C 3 N 4 /G composite to visual-region. Benefiting from the positive synergetic effect, 97% of nitrobenzene can be selectively reduced within 4 h by using TiO 2 /g-C 3 N 4 /G as the photocatalyst. The TiO 2 /g-C 3 N 4 /G composite with 3D structure demonstrates a great potential in selective oxidation and reduction of organics for the synthesis of high added-value organic compounds.

Subfields: Materials Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/f8f803ceee49813f952f0168ebab6c9e14b65fdb