• 文献标题:   Desalination across a graphene oxide membrane via direct contact membrane distillation
  • 文献类型:   Article
  • 作  者:   BHADRA M, ROY S, MITRA S
  • 作者关键词:   graphene oxide, desalination, direct contact membrane distillation, flux enhancement, mass transfer coefficient
  • 出版物名称:   DESALINATION
  • ISSN:   0011-9164 EI 1873-4464
  • 通讯作者地址:   New Jersey Inst Technol
  • 被引频次:   52
  • DOI:   10.1016/j.desal.2015.09.026
  • 出版年:   2016

▎ 摘  要

We demonstrate the immobilization of graphene oxide on polytetrafluoroethylene (PTFE) membrane surface for desalination via direct contact membrane distillation. The graphene oxide immobilized membrane significantly enhanced the overall permeate flux with complete salt rejection, and the flux reached as high as 97 kg/m(2) h at 80 degrees C. We attribute this enhancement in flux to multiple factors including selective sorption, nanocapillary effect, reduced temperature polarization as well as the presence of polar functional groups in graphene oxide. (C) 2015 Elsevier B.V. All rights reserved.