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第 36 卷第 2 期 精 细 化 工 Vol.36, No.2
201 9 年 2 月 FINE CHEMICALS Feb. 2019

水处理技术与环境保护
温敏型表面离子印迹聚合物的制备及性能

尚宏周，张 兴，孙晓然，何俊男，叶欣阳，王皓卿

（华北理工大学 化学工程学院，河北 唐山 063210）

摘要：以多壁碳纳米管为（MWCNTs）为基质，N-异丙基丙烯酰胺（NIPAM）为温敏单体，丙烯酰胺、丙烯酸
2+
为功能单体，N,N-亚甲基双丙烯酰胺为交联剂，Ni 为模板，采用反相悬浮法制得温敏型离子印迹材料（IIPs）。
采用 FTIR、XRD、TG、SEM 等对其进行了结构表征，采用丁二酮肟可见分光光度法对印迹聚合物的吸附性能
进行了考察。结果表明，通过改变温度可以控制印迹聚合物的吸附与脱附效率，在最佳吸附温度（40 ℃）下，
2+
IIPs 对 Ni 最大吸附量为 33.80 mg/g，该吸附过程符合热力学 Langmuir 模型和准二级动力学模型，在 25 ℃时
2+
2+
2+
2+
2+
2+
脱附效率远大于 50 ℃时脱附效率。在竞争离子 Pb 和 Cd 存在时，Ni /Pb 和 Ni /Cd 的选择系数分别为 12.62
2+
和 16.12，说明 IIPs 具有对 Ni 较强的识别能力。
关键词：温度感应；多壁碳纳米管；离子印迹；动力学；热力学；水处理技术与环境保护
中图分类号：0647.3 文献标识码：A 文章编号：1003-5214 (2019) 02-0308-08
Preparation and Properties of Temperature-sensitive
Surface Ion Imprinted Polymers

SHANG Hong-zhou, ZHANG Xing, SUN Xiao-ran, HE Jun-nan, YE Xin-yang, WANG Hao-qing
（College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China）

Abstract: A novel temperature-sensitive nickel ion imprinted polymer (IIPs) based on multi-walled carbon
nanotubes (MWCNTs) was synthesized by inverse suspension method using N-isopropyl acrylamide
(NIPAM), acrylamide and acrylic acid as functional monomers, N,N-methylene bis-acrylamide as
cross-linker, and Ni(II) as template molecule. The sample was characterized by Fourier transform infrared
spectrometer(FTIR), X-ray diffraction(XRD), thermogravimetry (TG) and scanning electron microscopy
(SEM). The adsorption properties of the imprinted polymer were investigated by ultraviolet-visible
spectrophotometry. The adsorption properties of ion imprinted polymer were investigated by
dimethylglyoxime visible spectrophotometry. The results indicated that changing the temperature could
control the adsorption and desorption efficiency of imprinted polymer. The maximum adsorption capacity
2+
of IIPs to Ni was 33.80 mg/g at the optimum adsorption temperature of 40 ℃. The adsorption isotherm
obeyed Langmuir model, and the adsorption kinetics could be represented by pseudo second-order kinetic.
2+
The desorption efficiency of IIPs to Ni at 25 ℃ was much greater than that at 50 ℃. In the presence of
2+
2+
2+
2+
2+
2+
competitive ions Pb and Cd , the selectivity coefficients of Ni /Pb and Ni /Cd were 12.62 and 16.12,
2+
respectively, indicating that IIPs had a strong ability to recognize Ni .
Key words: thermo-responsive; multi-walled carbon nanotubes; ion imprinted polymer; kinetics;
thermodynamics; water treatment technology and environmental protection
Foundation items: Natural Science Foundation of Hebei Province (B2014209200); Scientific Research
Project in Colleges and Universities of Hebei Province (ZD2017059)
随着经济发展，重金属对水体和土壤的污染问 Ni 是最常见的重金属元素之一，可在人体内不断富
题越来越突出，严重影响了人类生活和身体健康。 集，从而干扰人体正常代谢，引起皮炎和湿疹等过

收稿日期：2018-06-24; 定用日期：2018-11-09; DOI: 10.13550/j.jxhg.20180461
基金项目：河北省自然科学基金(B2014209200)；河北省高等学校科学研究计划（ZD2017059）
作者简介：尚宏周（1982—），男，博士，教授，电话：0315-8805151，E-mail：zhouzhou198213@163.com。