论文摘要
In this study, biologically inspired silk fibroin grafted polyacrylonitrile（SF-g-PAN） filtration membrane was prepared using ZnCl2 aqueous solution as solvent, avoiding the use of organic solvents. Phase inversion occurred when Zn2+and Cl-ions gradually diffused into water, creating a well-connected ion channel network and the SF-g-PAN filtration membrane was obtained. The membranes were observed by SEM and 3D ultra-depth microscope. The hydrophilic property, pore size distribution and dye rejection of the membrane were investigated. Results showed that the membrane has no finger hole formation because ZnCl2 aqueous solution has a lower curing rate parameter compared with organic solvents. SF-gPAN membrane possessed good anti-fouling properties and pH sensitivity. The pore size distribution of the SF-g-PAN membrane was 0.25–1.04 nm. The rejection of direct yellow 27（Mw = 662.6） and amaranth（Mw = 604.5） was 96.51% and 30.63%, with the flux of 72.32 L m-2h-1 and 73.83 L m-2h-1 respectively at0.1 MPa. The SF-g-PAN membrane has a wide range of applications prospect in fine separation, dye desalination, waste water treatment and biomedical fields.
论文目录
文章来源
类型: 期刊论文
作者: Jingang Li,Shuwen Li,Xiaohui Wang,Fan Fan,Kongyin Zhao,Junfu Wei,Linhua Zhang,Dunwan Zhu
来源: Chinese Chemical Letters 2019年01期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 无机化工,有机化工
单位: State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University,Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College
基金: supported by the National Natural Science Foundation of China (Nos. 51678409,145 708407,21476172),Tianjin Science Technology Research Funds of China (Nos. 16JCZDJC37500,15JCZDJC38300),Program for Innovative Research Team in University of Tianjin (No. TD13-5042),Science Foundation for the Youth Teachers of Peking Union Medical College (No. 2014ZLGC0754)
分类号: TQ051.893
页码: 239-242
总页数: 4
文件大小: 2817K
下载量: 15
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