科学研究

铈离子印迹聚合物的制备及吸附性能

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  • 贵州师范学院化学与材料学院,贵阳550018
周进康(1964-),男,教授,主要研究方向为功能材料制备及应用研究,E-mail:jinkangzhou@126.com。

收稿日期: 2019-08-09

  修回日期: 2020-09-01

  网络出版日期: 2021-01-21

基金资助

贵州省科技计划项目([2019]1252、[2018]1122);贵州省教育厅项目(黔教合KY字[2016]083号)

Preparation and adsorption property of Ce-DETA-IIPs ion imprinted polymer

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  • College of Chemistry and Materials,Guizhou Education University,Guiyang 550018

Received date: 2019-08-09

  Revised date: 2020-09-01

  Online published: 2021-01-21

摘要

以Ce(Ⅳ)为模板、二乙烯三胺(DETA)为螯合剂、丙烯酸(AA)为功能单体,在AB-8树脂表面进行水热聚合反应,制备出铈离子印迹聚合物(Ce-DETA-IIPs)。采用红外光谱(FT-IR)、比表面积分析(BET)和X-衍射(XRD)进行表征。通过Ce-DETA-IIPs的吸附试验、考察了吸附性能。结果表明,在初始浓度350mg/L、吸附90min、温度为298K,Ce-DETA-IIPs对Ce(Ⅳ)的吸附量和吸附率分别达到174.03mg/g和99.38%,Ce-DETA-IIPs对几种金属离子的选择性系数QCe(Ⅳ)/QCa(Ⅱ)QCe(Ⅳ)/QAl(Ⅲ)QCe(Ⅳ)/QFe(Ⅲ)QCe(Ⅳ)/QMg(Ⅱ)QCe(Ⅳ)/QZn(Ⅱ)分别达到26.73、12.99、10.40、8.91和7.00。

本文引用格式

周进康, 罗彬彬, 龙攀峰, 王毓, 赵君 . 铈离子印迹聚合物的制备及吸附性能[J]. 化工新型材料, 2020 , 48(12) : 175 -179 . DOI: 10.19817/j.cnki.issn 1006-3536.2020.12.042

Abstract

The cerium ion imprinted polymers (Ce-DETA-IIPs) was prepared by hydrothermal polymerization of cericum ion(Ⅳ) used as target ion,DETA used as chelating agent and AA was used as functional monomer of molecular imprinting technique on AB-8 resin surface.The structure were characterized by infrared spectroscopy (FT-IR),X-ray diffractometer (XRD) and specific surface area analysis (BET).The adsorption conditions and adsorption properties of Ce-DETA-IIPs were investigated by adsorption experiment.The results showed that the adsorption quantities of Ce-DETA-IIPs on Ce(Ⅳ) achieved 174.03mg/g,and the adsorption rate was 99.38% when the initial concentration was 350mg/L,adsorption temperature was 298K,pH was 2 and time was 90min.The selectivity coefficients of Ce-DETA-IIPs for several metal ions of QCe(Ⅳ)/QCa(Ⅱ),QCe(Ⅳ)/QAl(Ⅲ),QCe(Ⅳ)/QFe(Ⅲ),QCe(Ⅳ)/QMg(Ⅱ) and QCe(Ⅳ)/QZn(Ⅱ) were 26.73,12.99,10.40,8.91 and 7.00,respectively.

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