Enhanced pervaporative performance of hybrid membrane by incorporating amphiphilic carbonaceous material
Gao, BX; Jiang, ZY; Liu, GH; Xing, RS; Wu, H; Pan, FS; Wang, BY; Cao, XZ; Wang BY(王宝义); Cao XZ(曹兴忠)
刊名JOURNAL OF MEMBRANE SCIENCE
2016
卷号520页码:951-963
关键词Amphiphilic carbonaceous material Hybrid membrane Water transport channel Pervaporation Ethanol dehydration
DOI10.1016/j.memsci.2016.08.049
文章类型期刊论文
英文摘要Amphiphilic carbonaceous material (ACM) was blended with sodium alginate (SA) and then deposited onto the polyacrylonitrile (PAN) porous support layer to fabricate SA-ACM/PAN hybrid membranes. As a two-dimensional material, ACM provided anisotropy, horizontal stacking orientation and high aspect ratio. The abundant oxygen-containing functional groups (-NO2, -SO3H, -OH, -COOH and epoxy group) on the edge of ACM (proved by X-ray photoelectron spectroscopy and scanning electron microscope with energy dispersive X-ray (EDX) spectrometer) offered the hydrophilic region, while the unoxidized part on the surface of ACM offered hydrophobic region. The hydrophilic region on ACM could preferentially adsorb water molecules and then facilitate water molecules entering the transport channel due to the hydrogen bond, while the hydrophobic region could realize the fast diffusion of water molecules. The small nanosheet size (200-400 nm, observed by atomic force microscopy) could interfere the arrangement of, polymer chains more efficiently. The hybrid membranes exhibited the optimal permeation flux of 1778 g/m(2) h and separation factor of 1816 for ethanol dehydration under 76 degrees C and 10 wt% feed water concentration, which is much higher than that of SA membrane (increased by 139% and 306%, respectively). (C) 2016 Elsevier B.V. All rights reserved.
类目[WOS]Engineering, Chemical ; Polymer Science
关键词[WOS]MIXED MATRIX MEMBRANES ; ETHANOL-WATER MIXTURES ; GRAPHENE OXIDE ; SODIUM ALGINATE ; NANOCOMPOSITE MEMBRANES ; COMPOSITE MEMBRANES ; DEHYDRATION PERFORMANCE ; MASS-TRANSPORT ; SEPARATION ; LAYER
语种英语
WOS记录号WOS:000384785000094
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260318
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
作者单位中国科学院高能物理研究所
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Gao, BX,Jiang, ZY,Liu, GH,et al. Enhanced pervaporative performance of hybrid membrane by incorporating amphiphilic carbonaceous material[J]. JOURNAL OF MEMBRANE SCIENCE,2016,520:951-963.
APA Gao, BX.,Jiang, ZY.,Liu, GH.,Xing, RS.,Wu, H.,...&曹兴忠.(2016).Enhanced pervaporative performance of hybrid membrane by incorporating amphiphilic carbonaceous material.JOURNAL OF MEMBRANE SCIENCE,520,951-963.
MLA Gao, BX,et al."Enhanced pervaporative performance of hybrid membrane by incorporating amphiphilic carbonaceous material".JOURNAL OF MEMBRANE SCIENCE 520(2016):951-963.
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