• 文献标题:   Graphene Oxide/BiOCl Nanocomposite Films as Efficient Visible Light Photocatalysts
  • 文献类型:   Article
  • 作  者:   LIN WT, YU X, ZHU Y, ZHANG YM
  • 作者关键词:   graphene, biocl, film, visiblelight, photocatalytic activity
  • 出版物名称:   FRONTIERS IN CHEMISTRY
  • ISSN:   2296-2646
  • 通讯作者地址:   Jinan Univ
  • 被引频次:   4
  • DOI:   10.3389/fchem.2018.00274
  • 出版年:   2018

▎ 摘  要

A novel graphene oxide/BiOCl (GO/BiOCl) nanocomposite film was prepared via a spread coating method. In visible-light photocatalytically degrading Rhodamine B (RhB) experiments, 2 wt% GO/BiOCl could degrade 99% of RhB within 1.5 h and the rate constant was 12.2 times higher than that of pure BiOCl. The degradation efficiency still kept at 80% even after 4 recycles, evidencing the relatively good recyclability. The enhancement was attributed to the improvement of visible light adsorption and charge separation. Holes and superoxide radicals. O-2(-) played a major role as reactive species. The values of conduction band and valence band for GO and BiOCl were calculated and a new photocatalytic mechanism of GO/BiOCl nanocomposite was proposed.