Synthesis, adsorption and selectivity of inverse emulsion Cd(Ⅱ) imprinted polymers

查看全文 作　　者：Luwei [1]Li;Fang [1]Zhu;Yanhong [1]Lu;Jian [1]Guan

机构地区：[1]College of Environmental Science and Engineering, Taiyuan University of Technology

出　　处：《Chinese Journal of Chemical Engineering》索引2018年第26卷第3期,共7页

基　　金：Supported by the National Natural Science Foundation of China(21276174);the Natural Science Foundation of Shanxi Province(2013011040-1) 摘　　要：Inverse emulsion polymerization was employed to synthesize inverse emulsion Cd(II) imprinted polymers(IEII P). The morphology and functional groups of IEIIP were characterized by SEM,FTIR and TG. Static adsorption experiments and competitive adsorption test were used to evaluate the adsorption ability of IEIIP. The adsorption capacity of polymers could reach 86.7 mg·g^(-1) under the optimal adsorption conditions. The pseudo second order kinetic model and Langmuir isotherm model could be used to analyze the experimental data well. The adsorption process of IEIIP was chemical adsorption process and monomolecular type. Thermodynamic parameters showed that the adsorption process was endothermic and could occur spontaneously. The selectivity coefficients k of Cd^(2+)/Pb^(2+), Cd^(2+)/Zn^(2+) and Cd^(2+)/Cu^(2+) were 2.4998, 1.2437 and 4.6882, respectively. The proposed method provides a new thought for removing Cd(II) in water samples. 关键词：竞争吸附聚合物 CD 乳剂合成吸附能力吸附过程 FTIR

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Synthesis, adsorption and selectivity of inverse emulsion Cd(Ⅱ) imprinted polymers

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