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Atomistic understandings of reduced graphene oxide as an ultrathin-film nanoporous membrane for separations.

ABSTRACT: The intrinsic defects in reduced graphene oxide (rGO) formed during reduction processes can act as nanopores, making rGO a promising ultrathin-film membrane candidate for separations. To assess the potential of rGO for such applications, molecular dynamics techniques are employed to understand the defect formation in rGO and their separation performance in water desalination and natural gas purification. We establish the relationship between rGO synthesis parameters and defect sizes, resulting in a potential means to control the size of nanopores in rGO. Furthermore, our results show that rGO membranes obtained under properly chosen synthesis conditions can achieve effective separations and provide significantly higher permeate fluxes than currently available membranes.

SUBMITTER: Lin LC

PROVIDER: S-EPMC4667428 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature

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Atomistic understandings of reduced graphene oxide as an ultrathin-film nanoporous membrane for separations.

Lin Li-Chiang LC Grossman Jeffrey C JC

Nature communications 20150923

The intrinsic defects in reduced graphene oxide (rGO) formed during reduction processes can act as nanopores, making rGO a promising ultrathin-film membrane candidate for separations. To assess the potential of rGO for such applications, molecular dynamics techniques are employed to understand the defect formation in rGO and their separation performance in water desalination and natural gas purification. We establish the relationship between rGO synthesis parameters and defect sizes, resulting i ...[more]

PMID: 26395422

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