• 文献标题:   PREPARATION AND PHOTOCATALYTIC PROPERTIES OF Ag/Graphene/TiO2 COMPOSITES
  • 文献类型:   Article
  • 作  者:   LI SY, FENG JH, CHEN HW, LU JY, YAO DM, ZHANG HY, QIN YL
  • 作者关键词:   tio2, silver, graphene, photocatalysi
  • 出版物名称:   DIGEST JOURNAL OF NANOMATERIALS BIOSTRUCTURES
  • ISSN:   1842-3582
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:  
  • 出版年:   2021

▎ 摘  要

The composite catalysts were prepared by two-step photothermal synthesis, and the morphology, structure and catalytic performance of the Ag/graphene/TiO2 composite were characterized by SEM, FT-IR, XRD, etc. The results showed that the composites were prepared successfully by Ag depositing on TiO2 compounded with graphene, and solid UV diffuse reflection test showed that Ag/Graphene/TiO2 composites had the greatest enhancement in the absorption of visible light. The results showed that among four kinds materials, the methyl orange's degradation rate of Ag/Graphene/TiO2 in simulated visible light reached best, whose degradion was 4.25 times that of pure TiO2. The number of photocatalytic experiments showed that Ag/Graphene/TiO2 photogenerated electrons and the corresponding generated O-2 center dot dominated the catalysis.