Ionic liquid grafted polyamide 6 as porous membrane materials: Enhanced water flux and heavy metal adsorption

doi:10.1016/j.apsusc.2019.03.111

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Ionic liquid grafted polyamide 6 as porous membrane materials: Enhanced water flux and heavy metal adsorption
	Zheng, X ; Chen, FF ; Zhang, XW ; Zhang, HJ ; Li, YJ ; Li, JY
刊名	APPLIED SURFACE SCIENCE
	2019
卷号	481 页码:1435-1441
关键词	POLY(VINYLIDENE FLUORIDE) MEMBRANES IMMERSION PRECIPITATION PHASE INVERSION PVDF MEMBRANES PERMEABILITY SURFACTANT POLYMERS NYLON-6 ACID
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2019.03.111
文献子类	期刊论文
英文摘要	The design and preparation of new membrane material are of great importance. In this work, a hydrophilic ionic liquid (IL) grafted polyamide 6 (PA6) (IL-g-PA6) porous membrane materials were designed and prepared via radiation induced grafting method. The improved hydrophilicity, solubility and the unique ion structure of IL-g-PA6 made it suitable to prepare porous membrane using simple immersion precipitation phase inversion method. SEM images showed opened sponge-like pores for both PA6 and IL-g-PA6 porous membranes, while the pore size decreased and porosity increased as ionic liquid was grafted on PA6. It is believed that the mass transfer process was slowed down by enhanced hydrophilicity and solubility of IL-g-PA6, which lead to a different porous structure from that of PA6. Besides, even though the pore size of 2%-50 K membrane was much smaller, the water flux of which was 2.6 times higher than that of PA6 membrane. Moreover, the chromate sorption on 8%-50 K membrane was 2.7 times higher than that of PA6 membrane, which implies that the IL-g-PA6 porous membranes are good sorbent for heavy metal ions. The special interaction between grafted ionic liquid and heavy metal ions would account for the excellent adsorption property.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32109]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, CAS Ctr Excellence TMSR Energy Syst, Shanghai 201800, Peoples R China; 3.Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Hangzhou 310036, Zhejiang, Peoples R China; 4.Hangzhou Normal Univ, Coll Life & Environm Sci, Hangzhou 310036, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Zheng, X,Chen, FF,Zhang, XW,et al. Ionic liquid grafted polyamide 6 as porous membrane materials: Enhanced water flux and heavy metal adsorption[J]. APPLIED SURFACE SCIENCE,2019,481:1435-1441.
APA	Zheng, X,Chen, FF,Zhang, XW,Zhang, HJ,Li, YJ,&Li, JY.(2019).Ionic liquid grafted polyamide 6 as porous membrane materials: Enhanced water flux and heavy metal adsorption.APPLIED SURFACE SCIENCE,481,1435-1441.
MLA	Zheng, X,et al."Ionic liquid grafted polyamide 6 as porous membrane materials: Enhanced water flux and heavy metal adsorption".APPLIED SURFACE SCIENCE 481(2019):1435-1441.