• 文献标题:   Enhanced photocatalytic properties of graphene modified few-layered WSe2 nanosheets
  • 文献类型:   Article
  • 作  者:   YU B, ZHENG BJ, WANG XQ, QI F, HE JR, ZHANG WL, CHEN YF
  • 作者关键词:   wse2, wse2/rgo composite, solvothermal reaction, photocatalytic activity
  • 出版物名称:   APPLIED SURFACE SCIENCE
  • ISSN:   0169-4332 EI 1873-5584
  • 通讯作者地址:   Univ Elect Sci Technol China
  • 被引频次:   30
  • DOI:   10.1016/j.apsusc.2016.12.015
  • 出版年:   2017

▎ 摘  要

Reduced graphene oxide (RGO) modified few-layered WSe2 nanosheets have been synthesized through a facile one-pot solvothermal reaction. Compared with bare WSe2 nanosheets with relatively poor photocatalytic activity, WSe2/RGO composite demonstrates significant enhancement in photocatalytic degradation of organic dye RhB under visible light irradiation. The k value of WSe2/RGO is similar to 1.9 times larger than that of bare WSe2 nanosheets, which is attributed to the excellent charge separation feature and electronic transport ability of graphene nanosheets, leading to highly reduced electron-hole pair recombination of graphene on WSe2 nanosheets thus strongly enhancing the photocatalytic performance. The WSe2/RGO composite is a promising catalyst for photocatalytic degradation of organic pollutants by solar energy. (C) 2016 Elsevier B.V. All rights reserved.