采用静态吸附法考察了吸附时间、吸附温度、Cu(Ⅱ)初始浓度和溶液酸度对聚苯乙烯改性烷氧羰基硫脲螯合树脂(PSATU)吸附Cu(Ⅱ)性能的影响,树脂对Cu(Ⅱ)的饱和吸附容量为0.431mmol/g.PSATU树脂吸附过程符合Boyd液膜扩散方程和Langmuir等温吸附模型.吸附过程焓变和熵变大于零,吉布斯自由能变化值小于零,吸附过程为吸热的自发过程.PSATU树脂吸附Cu(Ⅱ)后,C=O、C=S和N-H键的吸收峰发生了变化,表明吸附过程中Cu与相应官能团发生了配位.
参考文献
[1] | Ayhan Demirba;Erol Pehlivan;Fethiye Gode .Adsorption of Cu(Ⅱ),Zn (Ⅲ),Ni (Ⅱ),Pb (Ⅱ) and Cd (Ⅱ) from aqueous solution on Amberlite IR-120 synthetic resin[J].Journal of Colloid and Interface Science,2005,282(01):20. |
[2] | 冷家峰,高焰,张怀成,李建议.在线螯合树脂富集火焰原子吸收光谱法测定天然水体中铜和锌[J].理化检验-化学分册,2005(08):556-557,560. |
[3] | Yang Xiyun et al.Thiourea-thiocyanate leaching system for gold[J].Hydrometallurgy,2011,106:58. |
[4] | Dominguez M.;Antico E.;Beyer L.;Aguirre A.;Garcia-Granda S.;Salvado V. .Liquid-liquid extraction of palladium(II) and gold(III) with N-benzoyl-N ',N '-diethylthiourea and the synthesis of a palladium benzoylthiourea complex[J].Polyhedron: The International Journal for Inorganic and Organometallic Chemistry,2002(14/15):1429-1437. |
[5] | LIU Guang-yi,ZHONG Hong,XIA Liu-yin,WANG Shuai,DAI Ta-gen.Effect of N-substituents on performance of thiourea collectors by density functional theory calculations[J].中国有色金属学报(英文版),2010(04):695-701. |
[6] | 王帅,钟宏,张骞,曹占芳,刘广义.烷氧羰基硫脲树脂与Ag+的螯合机理[J].材料导报,2010(10):26-28,32. |
[7] | WANG Shuai,ZHONG Hong,LIU Guang-yi,ZHANG Qian,LI Ting.Synthesis and adsorption properties for Au(Ⅲ) of alkoxycarbonyl thiourea resin[J].中南工业大学学报(英文版),2008(04):463-468. |
[8] | 王帅,钟宏,王仲南,李立清.对苯二甲酰基硫脲螯合树脂对Cu(Ⅱ)的吸附性能[J].应用化工,2011(02):191-194. |
[9] | 彭亚勤,钟宏,王帅,张骞.聚苯乙烯基硫脲螯合树脂的制备及对Au(Ⅲ)吸附性能的研究[J].贵金属,2010(01):25-28. |
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