Ion-imprinted silica gel and its dynamic membrane for nickel ion removal from wastewaters

被引：9

作者：

Zeng, Jiehui ^{[1
]}

Zeng, Jianxian ^{[1
]}

Zhou, Hu ^{[1
]}

Liu, Guoqing ^{[1
]}

Yuan, Zhengqiu ^{[1
]}

Jian, Jian ^{[1
]}

机构：

[1] Hunan Univ Sci & Technol, Sch Chem & Chem Engn, Xiangtan 411201, Peoples R China

来源：

FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING | 2020年 / 14卷 / 06期

基金：

中国国家自然科学基金;

关键词：

ion-imprinted; nickel ion; dynamic membrane; adsorption; SOLID-PHASE EXTRACTION; CROSS-FLOW MICROFILTRATION; POWDER-ACTIVATED CARBON; WASTE-WATER TREATMENT; HEAVY-METAL IONS; SELECTIVE SEPARATION; AQUEOUS-SOLUTIONS; CERAMIC MEMBRANE; HYBRID SORBENT; LEAD IONS;

D O I：

10.1007/s11705-020-1915-z

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An ion-imprinted sorbent (IIP) was prepared by using Ni2+ as template, 3-[2-(2-aminoethylamino) ethylamino] propyl-trimethoxysilane as functional monomer, and silica gel as carrier. The adsorption performance of IIP towards Ni2+ was investigated. IIP showed a higher adsorption capacity than that of non-imprinted sorbent, and it also exhibited high selectivity for Ni2+ in the presence of Cu2+ and Zn2+ ions. Then, IIP was used to form a dynamic membrane onto the surface of ceramic membrane for treatment of electroplating wastewater containing Ni2+. Compared with ceramic membrane, IIP dynamic membrane had much higher steady membrane flux, and also rejected Ni2+ to obtain a lower concentration of Ni2+ in the permeate fluid. Perhaps it is suitable for future practice applications.

引用

页码：1018 / 1028

页数：11

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