CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Engineering stable laminated graphene oxide hybrid membranes via imidazolium cations complexation
Gu, Y; Zhang, BW; Li, JH; Yu, M; Li, LF; Li, JY
2020
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume613Pages:-
Subtype期刊论文
AbstractThe water-induced interlayer spacing (d-spacing) expansion and architecture dissociation risk of graphene oxide (GO)-based membranes are the greatest roadblock to their application in aqueous solutions as molecular or ionic separation barriers. How to engineer stable GO-based membranes in water has attracted much attention from scientific communities. Herein, imidazolium cations were used to complex with GO sheets and build up stable laminated GO-hybrid membranes. It was experimentally confirmed that the complexation between imidazolium cations and GO sheets through pi-pi, cation-pi, and electrostatic interactions, effectively suppressed the d-spacing expansion of GO-hybrid membranes under aqueous condition, which showed high stability in long-time aqueous immersion, regardless of strong acidic and alkaline conditions. Moreover, with the assistance of imidazolium cations, GO-hybrid membranes exhibited excellent and stable sieving properties regarding molecules with hydrated radii larger than 0.487 nm by comparison to the original GO membrane. This investigation on the enhancement of laminated GO-hybrid membranes through organic cations complexation provided an alternative way to construct and customize stable GO-based membranes for separation process in the aqueous phase.
KeywordCOMPOSITE MEMBRANES WATER ADSORPTION STABILITY DYE ADSORBENT PRECISE REMOVAL IONS
DOI10.1016/j.memsci.2020.118519
Indexed BySCI ; EI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32853
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Shanghai Normal Univ, Shanghai Key Lab Rare Earth Funct Mat, Key Lab Resource Chem, Coll Chem & Mat Sci,Educ Minist, 100 Guilin Rd, Shanghai 200234, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China
3.Univ Chinese Acad Sci, 19A,Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Gu, Y,Zhang, BW,Li, JH,et al. Engineering stable laminated graphene oxide hybrid membranes via imidazolium cations complexation[J]. JOURNAL OF MEMBRANE SCIENCE,2020,613:-.
APA Gu, Y,Zhang, BW,Li, JH,Yu, M,Li, LF,&Li, JY.(2020).Engineering stable laminated graphene oxide hybrid membranes via imidazolium cations complexation.JOURNAL OF MEMBRANE SCIENCE,613,-.
MLA Gu, Y,et al."Engineering stable laminated graphene oxide hybrid membranes via imidazolium cations complexation".JOURNAL OF MEMBRANE SCIENCE 613(2020):-.
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