Membrane of Functionalized Reduced Graphene Oxide Nanoplates with Angstrom-Level Channels

Overview

Journal Sci Rep

Specialty Science

Date 2016 Jun 17

PMID 27306853

Citations 1

Authors

Byeongho Lee

Kunzhou Li

Hong Sik Yoon

Jeyong Yoon

Yeongbong Mok

Yan Lee

Hong H Lee

Yong Hyup Kim

Affiliations

Soon will be listed here.

Abstract

Membranes with atomic level pores or constrictions are valuable for separation and catalysis. We report a graphene-based membrane with an interlayer spacing of 3.7 angstrom (Å). When graphene oxide nanoplates are functionalized and then reduced, the laminated reduced graphene oxide (rGO) nanoplates or functionalized rGO membrane is little affected by an intercalated fluid, and the interlayer spacing of 3.7 Å increases only to 4.4 Å in wetted state, in contrast to the graphene oxide (GO) membrane whose interlayer spacing increases from 9 Å to 13 Å in wetted state. When applied to ion separation, this membrane reduced the permeation rate of small ions such as K(+) and Na(+) by three orders of magnitude compared to the GO membrane.

Citing Articles

Design and fabrication of porous three-dimensional Ag-doped reduced graphene oxide (3D Ag@rGO) composite for interfacial solar desalination.

Bezza F, Iwarere S, Brink H, Chirwa E Sci Rep. 2024; 14(1):13793.

PMID: 38877030 PMC: 11178800. DOI: 10.1038/s41598-024-62987-z.

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