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Fabrication of Ultrathin Membrane via Layer-by-Layer Self-assembly Driven by Hydrophobic Interaction Towards High Separation Performance
Zhao, J; Pan, FS; Li, P; Zhao, CH; Jiang, ZY; Zhang, P; Cao, XZ;张鹏(正); Cao XZ(曹兴忠)
2013
发表期刊ACS APPLIED MATERIALS & INTERFACES
卷号5期号:24页码:13275-13283
摘要A novel and facile layer-by-layer (LbL) self-assembly process driven by hydrophobic interaction and then reinforced by hydrogen bond was developed to prepare ultrathin membranes. Gelatin (GE) and tannic acid (TA) were alternately deposited on polyacrylonitrile (PAN) ultrafiltration. membranes to obtain GE/TA membranes. The required number of deposition cycles for acceptable permselectivity of membrane was greatly reduced compared with that of the traditional LbL self-assembly process and could be ascribed to the rapid growth of membrane thickness and the integrity of the innermost gelatin layer. Higher surface hydrophilicity and more appropriate free volume characteristics were obtained for GE/TA multilayer membranes compared with pristine gelatin membrane. Moreover, the GE/TA multilayer membrane exhibited improved stability even at high water content of 30 wt %. The membrane separation experiments with pervaporation dehydration of ethanol aqueous solution as a model system demonstrated the GE/TA multilayer membrane achieved higher water permselectivity than the pristine gelatin membrane. High operation stability was acquired in the long-term membrane separation test.
关键词gelatin/tannic acid layer-by-layer self-assembly hydrophobic interaction hydrogen bond ultrathin membranes
学科领域Science & Technology - Other Topics; Materials Science
DOI10.1021/am404268z
收录类别SCI
WOS记录号WOS:000329137400067
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被引频次:33[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224344
专题多学科研究中心
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GB/T 7714
Zhao, J,Pan, FS,Li, P,et al. Fabrication of Ultrathin Membrane via Layer-by-Layer Self-assembly Driven by Hydrophobic Interaction Towards High Separation Performance[J]. ACS APPLIED MATERIALS & INTERFACES,2013,5(24):13275-13283.
APA Zhao, J.,Pan, FS.,Li, P.,Zhao, CH.,Jiang, ZY.,...&曹兴忠.(2013).Fabrication of Ultrathin Membrane via Layer-by-Layer Self-assembly Driven by Hydrophobic Interaction Towards High Separation Performance.ACS APPLIED MATERIALS & INTERFACES,5(24),13275-13283.
MLA Zhao, J,et al."Fabrication of Ultrathin Membrane via Layer-by-Layer Self-assembly Driven by Hydrophobic Interaction Towards High Separation Performance".ACS APPLIED MATERIALS & INTERFACES 5.24(2013):13275-13283.
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