| 205 | 4 | 42 |
| 下载次数 | 被引频次 | 阅读次数 |
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Hg2+的静态饱和吸附量及树脂对Hg2+的动力学及热力学吸附性能。结果表明,pH=3时,PS-(SO-TETA)2对Hg2+的最大吸附量为0.89mmol/g。树脂对Hg2+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。
Abstract：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 Hg2+ 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.
[1]Rumayor M,Diaz-Somoano M,Lopez-Anton M A,et al.Application of thermal desorption for the identification of mercury species in solids derived from coal utilization.Chemosphere[J].2015,119:459-465.
[2]Fenglian Fu,Qi Wang.Removal of heavy metal ions from wastewaters:A review.Journal of Environmental Management[J].2011,92(3):407-418.
[3]李保花,刘福强,李兰娟,等.分离与回收重金属的典型树脂研究进展.离子交换与吸附[J].2011,27(3):279-288.
[4]徐超,刘福强,巢路,等.新型多胺类螯合树脂的设计、制备及其对重金属离子吸附特性的研究.离子交换与吸附[J].2013,29(6):481-495.
[5]Rongjun Qu,Changmei Sun,Chunhua Wang,et al.Preparation and metal binding behavior of poly(4-vinylbenzyl 2-hydroxyethyl)sulfoxide and sulfone.European Polymer Journal[J].2005,41(7):1525-1530.
[6]Trochimczuk A W,Kolarz B N.Synthesis and chelating properties of resins with methylthiourea,guanylthiourea and dithiocarbamate groups.European Polymer Journal[J].2000,36(11):2359-2363.
[7]Jing X S,Liu F Q,Yang X,et al.Adsorption performances and mechanisms of the newly synthesized N,N′-di(carboxymethyl)dithiocarbamate chelating resin toward divalent heavy metal ions from aqueous media.Journal of Hazardous Materials[J].2009,167(1/2/3):589-596.
[8]Chunnuan Ji,Rongjun Qu,Chunhua Wang,et al.A chelating resin with bis[2-(2-benzothiazolylthioethyl)sulfoxide]:Synthesis,characterization and properties for a removal of trace heavy metal ion in water samples.Talanta[J].2007,73(2):195-201.
[9]Chunhua Xiong,Leilei Pi,Xinyi Chen,et al.Adsorption behavior of Hg2+in aqueous solutions on a novel chelating cross-linked chitosan microsphere.Carbohydrate Polymers[J].2013,98(1):1222-1228.
[10]Rechenberg D.Properties of ion-exchange resins in relation to their structure.III.Kinetics of exchange.Journal of the Americal Chemistry Society[J].1953,75(3):589-597.
基本信息:
DOI：10.16026/j.cnki.iea.2015060505
中图分类号:O647.3
引用信息:
[1]卜凡玲,纪春暖,张秀娟,等.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[J].离子交换与吸附,2015,31(06):505-513.DOI:10.16026/j.cnki.iea.2015060505.
基金信息:
山东省自然科学基金(ZR2014EMM016)