二硫代氨基甲酸功能化聚合物吸附酸性废水中的铅离子  

Adsorption of Lead Ion in Acidic Wastewater by Using Dithiocarbamic Acid Functionalized Polymer

作　　者：郭传恩 赵珩 刘昌荣 孙君华 杨忠将 崔玉[2] GUO Chuan’en;ZHAO Heng;LIU Changrong;SUN Junhua;YANG Zhongjiang;CUI Yu(Forensic Center,Shandong University of Political Science and Law,Jinan 250014,Shandong,China;School of Chemistry and Chemical Engineering,University of Jinan,Jinan 250022,Shandong,China)

机构地区：[1]山东政法学院司法鉴定中心,山东济南250014 [2]济南大学化学化工学院,山东济南250022

出　　处：《济南大学学报（自然科学版）》2021年第6期626-632,共7页Journal of University of Jinan(Science and Technology)

基　　金：国家自然科学基金项目(21876062)。

摘　　要：采用溶剂热法合成二硫代氨基甲酸功能化二乙烯基苯-甲基丙烯酰胺聚合物吸附剂,用于处理酸性废水中的铅离子(Pb^(2+))。结果表明:该吸附剂的比表面积为230.2 m^(2)/g,最大平衡吸附量为342.3 mg/g,吸附平衡时间只需15 min;该吸附剂能够有效去除酸性溶液中的Pb^(2+),吸附过程符合Langmiur吸附等温线,吸附动力学符合拟二级动力学模型;经过10次循环后,该吸附剂仍保持85%的Pb^(2+)吸附率,具有较好的再生性能。A dithiocarbamic acid functionalized polydivinylbenzene methacrylamide adsorbent was synthesized by using solvothermal method and applied to adsorption of lead ion(Pb^(2+))in acidic wastewater.The results show that the specific surface area of the adsorbent is 230.2 m^(2)/g,the maximum equilibrium adsorbate loading for Pb^(2+)achieves 342.3 mg/g,and the adsorption equilibrium time is only 15 min.The adsorbent can effectively remove Pb^(2+)from acidic solution.The adsorption process conforms Langmuir adsorption isotherm,and the adsorption kinetics follows pseudo-second-order dynamical model.The removal efficiency of Pb^(2+)by using the adsorbent still remains above 85%after 10 cycles,showing good regenerability.

关 键 词：吸附材料 聚合物 二硫代氨基甲酸 铅离子 废水处理 

分 类 号：O643[理学—物理化学]