• 文献标题:   Heteroatom Nitrogen- and Boron-Doping as a Facile Strategy to Improve Photocatalytic Activity of Standalone Reduced Graphene Oxide in Hydrogen Evolution
  • 文献类型:   Article
  • 作  者:   PUTRI LK, NG BJ, ONG WJ, LEE HW, CHANG WS, CHAI SP
  • 作者关键词:   photocatalyst, nitrogen, boron, doped, graphene, hydrogen
  • 出版物名称:   ACS APPLIED MATERIALS INTERFACES
  • ISSN:   1944-8244 EI 1944-8252
  • 通讯作者地址:   Monash Univ
  • 被引频次:   46
  • DOI:   10.1021/acsami.6b12060
  • 出版年:   2017

▎ 摘  要

Owing to its superior properties and versatility, graphene has been proliferating the energy research scene in the past decade. In this contribution, nitrogen (N-) and boron (B-) doped reduced graphene oxide (rGO) variants were investigated as a sole photocatalyst for the green production of H-2 and their properties with respect to photocatalysis were elucidated for the first time. N- and B-rGOs were facilely prepared via the pyrolysis of graphene oxide with urea and boron anhydride as their respective dopant source. The pyrolysis temperature was varied (600-800 degrees C for N-rGO and 800-1000 degrees C for B-rGO) in order to modify dopant loading percentage (%) which was found to be influential to photocatalytic activity. N-rGO600 (8.26 N at%) and B-rGO1000 (3.59 B at%), which holds the highest at% from each of their party, exhibited the highest H-2 activity. Additionally, the effects of the nature of N and B bonding configuration in H-2 photoactivity were also examined. This study demonstrates the importance of dopant atoms in graphene, rendering doping as an effective strategy to bolster photocatalytic activity for standalone graphene derivative photo catalysts.