• 文献标题:   Significant photocatalytic enhancement in methylene blue degradation of TiO2 photocatalysts via graphene-like carbon in situ hybridization
  • 文献类型:   Article
  • 作  者:   WANG YJ, SHI R, LIN J, ZHU YF
  • 作者关键词:   photocatalysi, graphenelike carbon, tio2, surface hybridization
  • 出版物名称:   APPLIED CATALYSIS BENVIRONMENTAL
  • ISSN:   0926-3373 EI 1873-3883
  • 通讯作者地址:   Tsinghua Univ
  • 被引频次:   209
  • DOI:   10.1016/j.apcatb.2010.07.028
  • 出版年:   2010

▎ 摘  要

Graphene-like carbon/TiO2 photocatalysts were prepared via a facile in situ graphitization approach. The introduction of graphene-like carbon to TiO2 effectively enhanced its photocatalytic activity. A graphene-like carbon/TiO2 photocatalyst with a monolayer carbon shell (0.468 nm) showed the highest photocatalytic activity which is about 2.5 times as high as that of pristine TiO2 (P25) under UV light irradiation. The mechanism of the enhanced photocatalytic activity is based on the synergetic effect between graphene-like carbon and TiO2. The synergetic effect caused a rapid photoinduced charge separation and decreased the possibility of recombination of electron hole pairs, which increased the number of holes participated in the photooxidation process and enhanced the photocatalytic activity. (C) 2010 Published by Elsevier B.V.