• 文献标题:   A photo-Fenton graphene oxide membrane with improved perm-selectivity and self-cleaning ability for efficient dye removal under visible light irradiation
  • 文献类型:   Article
  • 作  者:   YUE RY, CHEN TT, YE ZB, BARBEAU B, RAHAMAN MS
  • 作者关键词:   graphene oxide, reactive ultrafiltration membrane, dye removal, photofenton, antifouling
  • 出版物名称:   JOURNAL OF WATER PROCESS ENGINEERING
  • ISSN:   2214-7144
  • 通讯作者地址:  
  • 被引频次:   7
  • DOI:   10.1016/j.jwpe.2021.102443
  • 出版年:   2021

▎ 摘  要

Reactive membranes (RMs) have attracted worldwide attention for wastewater purification and treatment due to their unique characteristics. In this study, through manipulating the band gap of graphene oxide (GO), a photo-Fenton GO membrane with enlarged inner channels, great selectivity and permeability as well as excellent self-cleaning ability was prepared for the first time via vacuum filtration. Notably, increased permeability (similar to 130.0 L m(-2).h(-1) bar(-1)) and enhanced dye removal efficiency (>= 99%) of the GO membrane are observed in the syn-ergistic photo-Fenton/filtration system. Additionally, the GO membrane maintained high flux and superior rejection properties after 10 repetitions, indicating its desirable stability and anti-fouling capabilities in photo-Fenton/filtration systems. The GO membrane can also be used as a photocatalyst and shows great removal ef-ficiency for MB (90.1%) in the photo-Fenton system. Besides, the mechanism of the self-cleaning property of the GO membrane is explored and it is found that the highly reactive center dot OH and center dot O-2(-) species contribute to membrane anti-fouling behavior. Based on our results, the GO membrane has potential for use as a self-cleaning membrane for advanced wastewater purification.