• 文献标题:   Fabrication of 3D ultra-light graphene aerogel/Bi2WO6 composite with excellent photocatalytic performance: A promising photocatalysts for water purification
  • 文献类型:   Article
  • 作  者:   DONG SY, CUI LF, LIU CY, ZHANG FY, LI KY, XIA LJ, SU XF, FENG JL, ZHU YF, SUN JH
  • 作者关键词:   graphene aerogel/bi2wo6, 3d, ultralight, photocatalytic, water purification
  • 出版物名称:   JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
  • ISSN:   1876-1070 EI 1876-1089
  • 通讯作者地址:   Henan Normal Univ
  • 被引频次:   28
  • DOI:   10.1016/j.jtice.2019.02.016
  • 出版年:   2019

▎ 摘  要

Herein, we fabricated an ultra-light graphene aerogel/Bi2WO6 (GA/BW) photocatalyst with macroscopic 3D architecture via in-situ synthesis, which had preferable activity for organic wastewater purification. We carefully characterized the physical and chemical properties of this macroscopic 3D architecture, finding that the flower-like Bi2WO6 (BW) uniformly loaded on the surface of GA, improving the visible light absorption performance, photon-generated carrier separation efficiency and organic contaminants adsorption ability, as well as photocatalytic ability compared with that of pure BW powders. When the mass ratio of GA and BW is 6:8, the degradation efficiency of rhodamine B (RhB) and sulfanilamide (SN) can reach 97.49% and 55.81% in 120 min, respectively. The as-prepared GA/BW composite is ultra-light and suitable for practical wastewater purification due to its flexibility and recyclability. The trapping experiments involved the main active species in the photocatalytic process were carried out and the results indicated that the h+ is the dominant oxidative species for the degradation of RhB. (C) 2019 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.