Ultrahigh water permeance of a reduced graphene oxide nanofiltration membrane for multivalent metal ion rejection. Issue 95 (17th November 2020)

• Record Type: Journal Article
• Authors: Dai, Fangfang; Yu, Risheng; Yi, Ruobing; Lan, Jian; Yang, Rujie; Wang, Zhikun; Chen, Junlang; Chen, Liang
• Is Part Of: Chemical communications. Volume 56:Issue 95(2020)
• Page Start: 15068
• Page End: 15071
• Publication Date: 2020-11-17
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc06302a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A simple way to fabricate pure rGO membranes shows ultrahigh water permeance and excellent multivalent metal ion rejection, as well as long-term stability. Abstract : We develop a kind of pure rGO membrane using amino-hydrothermal reduction that exhibits an ultrahigh water permeance of 142.5 L m −2 h −1 bar −1 while still maintaining a high rejection rate of 91.6% for multivalent metal ions. The prepared rGO membranes have two types of spacing: larger hydrophilic spacing and smaller hydrophobic spacing, resulting in superior filtration performance. This provides a new avenue for multivalent metal ion separation using pure rGO membranes.