• 文献标题:   One Pot Synthesize alpha-Fe2O3/Graphene Composites and Their Photocatalytic Properties
  • 文献类型:   Article
  • 作  者:   YU LQ, WANG QQ, ZHANG ZP, HE JD, GUO LL, DONG KT, ZHANG YP
  • 作者关键词:   alphafe2o3, graphene, photocatalytic
  • 出版物名称:   JOURNAL OF NANOSCIENCE NANOTECHNOLOGY
  • ISSN:   1533-4880 EI 1533-4899
  • 通讯作者地址:   China Univ Petr
  • 被引频次:   7
  • DOI:   10.1166/jnn.2017.12586
  • 出版年:   2017

▎ 摘  要

alpha-Fe2O3 and graphene composite (alpha-Fe2O3/G) was prepared by a facile one-step hydrothermal method with an aim of improving photocatalytic efficiency of the alpha-Fe2O3. Composition of reduced graphene oxide and alpha-Fe2O3 were simultaneously achieved during the hydrothermal reaction. The structures and morphologies of the composites were characterized by X-ray diffraction and transmission electron microscopy. The photoelectrochemical properties were investigated by the Mott-Schottky, electrochemical impedance spectra and UV-vis diffusion spectra measurements. The photodegradation results showed that alpha-Fe2O3/G composites had a much better photocatalytic performance than pure alpha-Fe2O3 due to extended light absorption range and lower electron-hole recombination rate. It provided a new insight into the effect of graphene on photocatalytic activity for high efficient catalysts.