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Targeted modification of polyamide nanofiltration membrane for efficient separation of monosaccharides and monovalent salt

文献类型：期刊论文

作者Wang, Jingyu1,2; Ren, Yuling1; Zhang, Huiru1; Luo, Jianquan1; Woodley, John M.2; Wan, Yinhua1
刊名JOURNAL OF MEMBRANE SCIENCE
出版日期2021-06-15
卷号628页码:10
关键词Targeted modification Separation selectivity Pore size distribution Surface charge regulation Desalination
ISSN号0376-7388
DOI10.1016/j.memsci.2021.119250
英文摘要Separation of monosaccharides and monovalent salts is important in the biorefinery and food industry. Nanofiltration (NF) technology is promising for this purpose but its poor selectivity still needs to be addressed. In this work, the separation of monosaccharides and monovalent salts by NF is improved by regulating the surface charge and pore size distribution of polyamide NF membranes. The carboxyl groups on the polyamide membrane are selectively activated by N-(3-Dimethylaminopropyl)-N?-ethyl carbodiimide (EDC) and N-hydroxy succinimide (NHS), and subsequently molecules with amino groups are grafted on the membrane to reduce the effective pore size and electronegativity. The conditions and grafted molecules are optimized, and polyethyleneimine (600 Da) is selected as the best for enhancing the separation of glucose/fructose and KCl. Such targeted modification is found to reduce the effective mean pore size while maintaining the porosity of the NF270 membrane, due to pore segmentation. This results in a remarkable improvement in glucose/fructose rejection (from 67.96% to 84.14%) and separation factor (from 2.20 to 6.78), with only a 4.70% permeability loss. The modified membrane also maintains separation performance in crossflow filtration and after alkaline cleaning (pH 12), which outperforms the pristine NF270 and those modified by mussel-inspired coating and simple physical adsorption.
WOS关键词MOLASSES ; DESALINATION ; SOLVATION ; TRANSPORT ; SUCROSE ; GLUCOSE ; IONS ; ACID ; NACL ; PH
资助项目Science and Technology Service Network Program of Chinese Academy of Sciences[KFJSTSQYZX096] ; Province Key Research and Development Program of Shandong[2019JZZY010348] ; Youth Innovation Promotion Associationof Chinese Academy of Sciences[2017069]
WOS研究方向Engineering ; Polymer Science
语种英语
WOS记录号WOS:000697104000003
出版者ELSEVIER
资助机构Science and Technology Service Network Program of Chinese Academy of Sciences ; Province Key Research and Development Program of Shandong ; Youth Innovation Promotion Associationof Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/50247]  
专题中国科学院过程工程研究所
通讯作者Luo, Jianquan; Wan, Yinhua
作者单位1.Chinese Acad Sci, Univ Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Tech Univ Denmark, Proc & Syst Engn Ctr, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark
推荐引用方式
GB/T 7714		 Wang, Jingyu,Ren, Yuling,Zhang, Huiru,et al. Targeted modification of polyamide nanofiltration membrane for efficient separation of monosaccharides and monovalent salt[J]. JOURNAL OF MEMBRANE SCIENCE,2021,628:10.
APA Wang, Jingyu,Ren, Yuling,Zhang, Huiru,Luo, Jianquan,Woodley, John M.,&Wan, Yinhua.(2021).Targeted modification of polyamide nanofiltration membrane for efficient separation of monosaccharides and monovalent salt.JOURNAL OF MEMBRANE SCIENCE,628,10.
MLA Wang, Jingyu,et al."Targeted modification of polyamide nanofiltration membrane for efficient separation of monosaccharides and monovalent salt".JOURNAL OF MEMBRANE SCIENCE 628(2021):10.

入库方式： OAI收割

来源：过程工程研究所

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