• 文献标题:   Low-Fouling Antibacterial Reverse Osmosis Membranes via Surface Grafting of Graphene Oxide
  • 文献类型:   Article
  • 作  者:   HUANG XW, MARSH KL, MCVERRY BT, HOEK EMV, KANER RB
  • 作者关键词:   azide, graphene oxide, reverse osmosi, antifouling, antibacterial
  • 出版物名称:   ACS APPLIED MATERIALS INTERFACES
  • ISSN:   1944-8244
  • 通讯作者地址:   Univ Calif Los Angeles
  • 被引频次:   44
  • DOI:   10.1021/acsami.6b05293
  • 出版年:   2016

▎ 摘  要

Azide-functionalized graphene oxide (AGO) was covalently anchored onto commercial reverse osmosis (RO) membrane surfaces via azide photochemistry. Surface modification was carried out by coating the RO membrane with an aqueous dispersion of AGO followed by UV exposure under ambient conditions. This simple process produces a hydrophilic, smooth, antibacterial membrane with limited reduction in water permeability or salt selectivity. The GO-RO membrane exhibited a 17-fold reduction in biofouling after 24 h of Escherichia coli contact and almost 2 times reduced BSA fouling after a 1 week cross-flow test compared to its unmodified counterpart.