聚苯乙烯负载双亚砜及三乙烯四胺螯合树脂的合成及其对Hg^(2+)的吸附性能研究  

POLYSTYRENE-SUPPORTED CHELATING RESINS CONTAINING BIS(SULFOXIDE AND TRIETHYLENE TETRAMINE):SYNTHESIS,CHARACTERIZATION AND ADSORPTION PROPERTIES FOR Hg^(2+)

作　　者：卜凡玲 纪春暖[1] 张秀娟[2] 曲荣君[1] 刘希光[1] 陈厚[1] 张雪[1] 

机构地区：[1]鲁东大学化学与材料科学学院,烟台264025 [2]烟台职业学院食品与生化工程系,烟台264670

出　　处：《离子交换与吸附》2015年第6期505-513,共9页Ion Exchange and Adsorption

基　　金：山东省自然科学基金(ZR2014EMM016)

摘　　要：合成了聚苯乙烯负载双亚砜及三乙烯四胺新型螯合树脂[PS-(SO-TETA)_2]。对所制备的新型螯合树脂进行了红外光谱和元素分析等表征,研究了树脂对Hg^(2+)的静态饱和吸附量及树脂对Hg^(2+)的动力学及热力学吸附性能。结果表明,pH=3时,PS-(SO-TETA)_2对Hg^(2+)的最大吸附量为0.89mmol/g。树脂对Hg^(2+)的吸附是以液膜扩散为主的过程,拟二级动力学方程能更好地描述该吸附行为,等温吸附符合Langmuir单分子吸附模型。A novel polystyrene-supported chelating resins containing bis(sulfoxide and triethylenetetramine) [PS-(SO-TETA)_2] was synthesized and characterize by Fourier transform infrared spectroscopy(FT-IR) and elemental analysis. Adsorption capacity of Hg^(2+) on the resins was investigated in detail. The results showed that the maximum adsorption capacity was 0.89mmol/g at pH3. The adsorption process was controlled by film diffusion and followed by Pseudo-second-order kinetic equation. Adsorption data were described by Langmuir model well,which indicated monomolecular adsorbed layer formation.

关 键 词：螯合树脂 亚砜 三乙烯四胺 吸附 汞离子 

分 类 号：O647.3[理学—物理化学]