光催化
硝基苯
纳米片
石墨烯
材料科学
异质结
吸附
化学工程
复合数
纳米技术
纳米材料
光化学
催化作用
化学
光电子学
复合材料
有机化学
工程类
作者
Liqiang Zhang,Xing He,Xiuwen Xu,Chao Liu,Yongli Duan,Liqiang Hou,Qidong Zhou,Chi Ma,Xiaopeng Yang,Rui Li,Fan Yang,Lishan Cui,Xu Chen,Yongfeng Li
标识
DOI:10.1016/j.apcatb.2016.10.003
摘要
A simple self-assembly photochemical reduction method has been proposed to prepare highly photocatalytic TiO2 nanowire/g-C3N4 nanosheet/graphene heterostructures (TiO2/g-C3N4/G). In this hybrid structure, graphene enhances the charge transportation during photocatalytic process, and TiO2 nanowires prevent graphene and g-C3N4 from restacking. Meanwhile, g-C3N4 with a more suitable band gap, extends the adsorption edge of the TiO2/g-C3N4/G composite to visual-region. Benefiting from the positive synergetic effect, 97% of nitrobenzene can be selectively reduced within 4 h by using TiO2/g-C3N4/G as the photocatalyst. The TiO2/g-C3N4/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.
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