含双亚砜及3-氨基吡啶螯合树脂的合成、表征及其吸附性能  

THE SYNTHESIS,CHARACTERIZATION AND ADSORPTION PROPERTIES OF NEW CHELATING RESIN CONTAINING BIS(SULFOXIDE AND 3-AMINOPYRIDINE)

作　　者：时京喜[1] 纪春暖[1] 许国纯[2] 王春华[1] 孙言志[1] 孙昌梅[1] 曲荣君[1] 

机构地区：[1]鲁东大学化学与材料科学学院,烟台264025 [2]鲁东大学外事处,烟台264025

出　　处：《离子交换与吸附》2008年第6期504-511,共8页Ion Exchange and Adsorption

基　　金：山东省自然科学基金(Y2005F11;Y2007B19);鲁东大学科研基金(20052901)

摘　　要：合成了含双亚砜及3-氨基吡啶的新型螯合树脂,并进行了红外光谱、比表面积、孔径和元素分析表征。研究了不同pH下该树脂对Mn2+、Cd2+、Pb2+、Cu2+、Zn2+、Hg2+等金属离子的静态饱和吸附量以及在pH=6时该树脂对Hg2+的动力学吸附和热力学吸附。实验结果表明,该树脂对Hg2+的吸附量最大,达到0.82mmol/g,对Hg2+吸附属于液膜扩散控制。等温吸附研究表明,该树脂对Hg2+的吸附可用Langmuir方程描述。A new chelating resin containing bis（sulfoxide and 3-aminopyridine） was synthesized. Its structure was characterized by IR spectra, surface area, pore size and elemental analysis. The adsorption capacities of the resin for Ni^2＋, Cd^2＋, Pb^2＋, Cu^2＋, Zn^2＋, Hg^2＋ were investigated at pH=2 and 6. The adsorption kinetics and adsorption thermodynamics of the resin for Hg^2＋ were also studied. The experimental results showed that： the resin had high affinity for Hg^2＋. The maximum capacity at pH=6 was 0.82mmol/g. The adsorption was controlled by liquid film diffusion. The adsorption mechanism of the resin for Hg^2＋ could be depicted by Langmuir equation.

关 键 词：亚砜 3-氨基吡啶 螯合树脂 吸附 金属离子 

分 类 号：TQ025[化学工程] O647.3[理学—物理化学]