• 文献标题:   EVALUATION OF THE GRAPHENE OXIDE (GO) ROLE IN THE PHOTOCATALYTIC GENERATION OF HYDROGEN IN BINARY (GO-CdS) AND TERNARY (Pt-GO-CdS) SYSTEMS
  • 文献类型:   Article
  • 作  者:   ALMEIDA CG, TRINDADE TND, DA SILVA MVS, SILVA LA
  • 作者关键词:   water splitting, hydrogen, photocatalysis graphene, cadmium fide, visible light
  • 出版物名称:   QUIMICA NOVA
  • ISSN:   0100-4042 EI 1678-7064
  • 通讯作者地址:   Univ Fed Bahia
  • 被引频次:   1
  • DOI:   10.21577/0100-4042.20170255
  • 出版年:   2018

▎ 摘  要

Water splitting is a promising process to produce hydrogen from friendly feedstock and solar energy. In this work we have evaluated binary (GO-CdS) and ternary (Pt-GO-CdS) hybrid photocatalysts for hydrogen production assisted by visible light irradiation. Cadmium sulfide and composites with GO were prepared by sonochemical and thermal methods. GO addition took place by different strategies: during the synthesis or by mechanical mixture, A variety of configurations was tested and the best performance in hydrogen production among all materials was the ternary photocatalyst named Pt(GO,VAS(TT)), whose hydrogen production rate was 651 mu mol g(eat)(-1)h(-1). Such material was obtained by thermal method with GO addition during the synthesis. Additionally, the XRD and Raman analyses have confirmed the GO photoreduction during photocatalytic hydrogen evolution.