中文摘要：

以乙烯基修饰的磁性碳纳米管为基质,Pb2＋为模板,甲基丙烯酸为功能单体,乙二醇二甲基丙烯酸酯为交联剂,制备出一种对Pb2＋具有特异吸附能力的新型磁性印迹聚合物（MWNTs/MIIPs）。采用扫描电镜、红外光谱和振动样品磁强计等技术并对该印迹聚合物的形态、化学结构和性能进行表征。吸附实验结果表明,所制备的MWNTs/MIIPs对Pb2＋具有良好的吸附和选择识别能力,最大吸附量为25.9 mg/g;选择吸附实验结果表明,Pb2＋/Cu2＋,Pb2＋/Zn2＋,Pb2＋/Co2＋,Pb2＋/Mg2＋,Pb2＋/Cd2＋以及Pb2＋/Ni2＋的选择因子分别是2.3,2.5,2.1,2.2,2.1和2.4。结合原子吸收光谱分析技术,此MWNTs/MIIPs成功应用于实际样品中微量Pb2＋的分离富集,富集倍数可达40.5倍。

英文摘要：

Novel magnetic ion imprinted polymers based on vinyl-functionlized multiwalled carbon nanotubes（MWNTs@MIIPs） with highly selective adsorption toward Pb2＋ were synthesized using Pb2＋ as the template,methacrylic acid as the functional monomer and ethylene glycol dimethacrylate as the cross-linker.The MWNTs@MIIPs were characterized by scanning electron microscopy,Fourier-transform infrared analysis and vibrating sample magnetometer analysis.Adsorption studies demonstrated that the MWNTs@MIIPs possessed excellent adsorption and selective recognition ability towards Pb2＋ with a maximum capacity of 25.9 mg/g.And the selectivity factor of MWNTs@MIIPs towards Pb2＋/Cu2＋,Pb2＋/Zn2＋ Pb2＋/Co2＋,Pb2＋/Mg2＋,Pb2＋/Cd2＋and Pb2＋/Ni2＋ was 2.3,2.5,2.1,2.2,2.1 and 2.4,respectively.Combined with atomic absorption spectrometric analysis technology,the MWNTs@MIIPs were successfully applied for separation and enrichment trace Pb2＋ in environmental real samples with the enrichment factor of 40.5.