IHEP OpenIR
Incorporating Zwitterionic Graphene Oxides into Sodium Alginate Membrane for Efficient Water/Alcohol Separation
Zhao, J; Zhu, YW; He, GW; Xing, RS; Pan, FS; Jiang, ZY; Zhang, P; Cao, XZ; Wang, BY; 张鹏(正); Cao XZ(曹兴忠); Wang BY(王宝义)
2016
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume8Issue:3Pages:2097-2103
SubtypeArticle
AbstractFor the selective water-permeation across dense membrane, constructing continuous pathways with high density ionic groups are of critical significance for the preferential sorption and diffusion of water molecules. In this study, zwitterionic graphene oxides (PSBMA@GO) nano sheets were prepared and incorporated into sodium alginate (SA) membrane for efficient water permeation and water/ alcohol separation. The two-dimensional GO provides continuous pathway, while the high-density zwitterionic groups on GO confer electrostatic interaction sites with water molecules, leading to high water affinity and ethanol repellency. The simultaneous optimization of the physical and chemical structures of water transport pathway on zwitterionic GO surface endows the membrane with high-efficiency water permeation. Using dehydration of water/alcohol mixture as the model system, the nanohybrid membranes incorporating PSBMA@GO exhibit much higher separation performance than the SA membrane and the nanohybrid membrane utilizing unmodified GO as filler (with the optimal permeation flux of 2140 g m(-2) h(-1), and separation factor of 1370). The study indicates the great application potential of zwitterionic graphene materials in dense water-permeation membranes and provides a facile approach to constructing efficient water transport pathway in membrane.
Keywordzwitterionic graphene oxides nanohybrid membrane water transport pathway water/alcohol separation
DOI10.1021/acsami.5b10551
Indexed BySCI
Language英语
WOS IDWOS:000369044100066
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/248076
Collection中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Zhao, J,Zhu, YW,He, GW,et al. Incorporating Zwitterionic Graphene Oxides into Sodium Alginate Membrane for Efficient Water/Alcohol Separation[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(3):2097-2103.
APA Zhao, J.,Zhu, YW.,He, GW.,Xing, RS.,Pan, FS.,...&王宝义.(2016).Incorporating Zwitterionic Graphene Oxides into Sodium Alginate Membrane for Efficient Water/Alcohol Separation.ACS APPLIED MATERIALS & INTERFACES,8(3),2097-2103.
MLA Zhao, J,et al."Incorporating Zwitterionic Graphene Oxides into Sodium Alginate Membrane for Efficient Water/Alcohol Separation".ACS APPLIED MATERIALS & INTERFACES 8.3(2016):2097-2103.
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