| 刚果红分子印迹聚合物纳米微球的合成及吸附性能 |
| 摘要点击 3236 全文点击 1279 投稿时间：2014-10-15 修订日期：2015-01-16 |
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| 中文关键词 刚果红 分子印迹聚合物 纳米微球 沉淀聚合法 选择性 吸附 |
| 英文关键词 congo red molecularly imprinted polymers nanospheres precipitation polymerization selectivity recognition |
| 作者 | 单位 | E-mail | | 常自强 | 西华师范大学化学化工学院, 化学合成与污染控制四川省重点实验室, 南充 637002 | changziqing_123@163.com | | 陈复彬 | 西华师范大学化学化工学院, 化学合成与污染控制四川省重点实验室, 南充 637002 | | | 张玉 | 西华师范大学化学化工学院, 化学合成与污染控制四川省重点实验室, 南充 637002 | | | 时作龙 | 兵器工业卫生研究所, 西安 710065 | | | 杨春艳 | 西华师范大学化学化工学院, 化学合成与污染控制四川省重点实验室, 南充 637002 | yangchunyancfb@126.com | | 章竹君 | 陕西师范大学化学化工学院, 西安 710062 | |
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| 中文摘要 |
| 本研究以刚果红为模板分子,α-甲基丙烯酸(MAA)为功能单体,二甲基丙烯酸乙二醇酯(EGDMA)为交联剂,乙腈为致孔剂,2,2-偶氮二异丁腈(AIBN)为引发剂,采用沉淀聚合法制备了刚果红分子印迹聚合物纳米微球(MIP). 通过扫描、透射电镜对聚合物的结构和形貌进行了表征,结果显示制备的MIP微球的粒径在90 nm左右,粒径较为均匀. 利用氮气吸附脱附实验测定了聚合物颗粒的比表面积和孔容. 并对诸多吸附影响因素以及分子印迹聚合物的吸附能力、选择性和重复利用率进行了分析. 结果表明,MIP对刚果红表现出较好的选择性识别能力,可多次循环使用,能用于染料废水中刚果红的选择性吸附. |
| 英文摘要 |
| Molecularly imprinted polymer nanospheres (MIP) were prepared with Congo red as the template, methacrylic acid (MAA) as a functional monomer, ethylene glycol dimethacrylate (EGDMA) as the cross linker, azodiisobutyronitrile (AIBN) as an initiator, and acetonitrile as the porogen by precipitation polymerization. The morphology of MIP was characterized by SEM and TEM which showed that the diameter of MIP was nanometer grade (90 nm) and the shape was homogeneous. The specific surface area and pore volumes of MIP and NIP were examined through Brunauer-Emett-Teller method of nitrogen adsorption experiments. Then, the adsorption and selective recognition ability of MIPs were evaluated using the equilibrium rebinding experiments. The results indicated that the prepared MIP showed a good selectivity recognition ability to its template. It concluded that MIP could be employed as an effective material for removing Congo red from waste water. |
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