• 文献标题:   In situ construction of reduced graphene oxide supported Ag nanoneedles heterogenous nanostructures with superior catalytic activity for 4-nitrophenol
  • 文献类型:   Article
  • 作  者:   HAN XW, PAN HY, LIU MH
  • 作者关键词:   ag nanoneedle, reduced graphene oxide, nanocomposite, catalytic hydrogenation, 4nitrophenol
  • 出版物名称:   COLLOIDS SURFACES APHYSICOCHEMICAL ENGINEERING ASPECTS
  • ISSN:   0927-7757 EI 1873-4359
  • 通讯作者地址:   Shenyang Ligong Univ
  • 被引频次:   0
  • DOI:   10.1016/j.colsurfa.2020.124929
  • 出版年:   2020

▎ 摘  要

The Ag nanoneedles decorated reduced graphene oxide (AgNNs/rGO) heterogeneous nanocomposite was fabricated via a simple in situ hydrothermal method, in which, the Ag nanoneedles (AgNNs) showed a diameter of about 20 nm and length of about 500 nm. The possible formation mechanism of the as-prepared nanohybrids was proposed. It was found that the graphene oxide may work as a template for the formation of AgNNs on rGO. Owing to the unique structure and synergistic effect between AgNNs and rGO, the resulting AgNNs/rGO nanohybrids showed impressive catalytic ability with high activity factor of 73,260 s(-1) g(-1) and turnover frequency of 3183.78 h(-1) towards the catalytic hydrogenation of 4-nitrophenol to 4-aminophenol. This work may open a new door for the development of Ag-graphene catalysts and the construction of graphene-based nanohybrids with unique structure.