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第 36 卷第 6 期 精 细 化 工 Vol.36, No.6
201 9 年 6 月 FINE CHEMICALS June 2019

水处理技术与环境保护
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Cu 印迹交联壳聚糖微球的合成及吸附性能

傅明连，黄秋云，叶玉娟，陈彰旭

（莆田学院 环境与生物工程学院；福建省新型污染物生态毒理效应与控制重点实验室，福建 莆田 351100）

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摘要：利用分子印迹技术，以壳聚糖（CS）为功能单体，Cu 为印迹离子，通过稀氨水固化、环氧氯丙烷交联、
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盐酸洗脱 Cu ，制得了 Cu 印迹交联壳聚糖微球（Cu -ICM）。采用 FTIR、XRD 和 FESEM 对产品进行了表征,
并测定了微球的骨架密度、含水量和交联度。结果表明：交联改性可使微球具有多孔结构和良好的结构稳定性，
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能够很好地降低 CS 的酸溶性，提高微球对 Cu 的吸附性能。通过正交实验 L 9 （3 ）得到 Cu -ICM 的最优制备
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条件为：CS 1.5 g，环氧氯丙烷 2.5 mL，80 ℃下交联 3.0 h，制得的微球对 Cu 吸附量为 67.80 mg/g。在单组分
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体系中考察了微球对 Cu 的吸附性能。结果表明：当微球投加量为 50 mg，Cu 初始质量浓度为 338.7 mg/L，pH=5.0
时，吸附量为 72.80 mg/g。
关键词：印迹；壳聚糖微球；交联；铜离子；吸附量；水处理技术
中图分类号：X703 文献标识码：A 文章编号：1003-5214 (2019) 06-1228-07
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Synthesis and Adsorption Properties of Cu Imprinted
Cross-linked Chitosan Microspheres

FU Ming-lian, HUANG Qiu-yun, YE Yu-juan, CHEN Zhang-xu
（Fujian Provincial Key Laboratory of Ecology-toxicological Effects & Control for Emerging Contaminants, College of
Environmental and Biological Engineering, Putian University, Putian 351100, Fujian, China）

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Abstract: By using the molecular imprinting technique, Cu imprinted cross-linked chitosan microspheres
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(Cu -ICM) with chitosan (CS) as functional monomer, Cu as template ion were prepared by curing with
dilute ammonia, crosslinking with epoxy chloropropane and elution with hydrochloric acid. The products
were characterized by FTIR, XRD and FESEM. Their physical properties such as skeleton density, water
content and crosslinking degree were measured. The results showed that the crosslinking modification made
the microspheres have porous structure and good structural stability, reduced the acid solubility of CS very
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well, and improved the adsorption properties of microspheres on Cu . An orthogonal test L 9(3 ) was used
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to investigate the optimum preparation conditions of Cu -ICM. It was found that CS 1.5 g, epoxy
chloropropane 2.5 mL, crosslinking temperature 80 ℃, crosslinking time 3.0 h were optimal. Under the
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optimum conditions, the adsorption capacity of the prepared Cu -ICM to Cu was 67.80 mg/g. The
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adsorption properties of microspheres to Cu were also studied in single component system. The results
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demonstrated that when the dosage of microspheres was 50 mg, initial concentration of Cu was 338.7 mg/L,
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and pH value was 5.0, the Cu adsorption capacity of microspheres was 72.80 mg/g.
Key words: imprinting; chitosan microspheres; cross-linked; copper ion; adsorption capacity; water
treatment technology
Foundation items: Natural Science Foundation of Fujian Province (2017J01710, 2015J01644); National
College Students' Innovation and Entrepreneurship Training Program (201811498011); College Students'
Innovation and Entrepreneurship Training Program of Fujian Province (201811498033)

收稿日期：2018-08-23; 定用日期：2019-01-16; DOI: 10.13550/j.jxhg.20180619
基金项目：福建省自然科学基金资助项目（2017J01710，2015J01644）；国家级大学生创新创业训练计划项目（201811498011）；福建
省大学生创新创业训练计划项目（201811498033）
作者简介：傅明连（1980—），女，硕士，副教授，E-mail：fuminglian@126.com。