聚离子液体的制备及其对La^(3+)的吸附试验研究  

Preparation and Adsorption Performance for La^(3+)of Polyionic Liquid Solid Phase Adsorbent

作　　者：李智轩 高景龙[1] 左继成[1] LI Zhixuan;GAO Jinglong;ZUO Jicheng(School of Materials Science and Engineering,Shenyang Polytechnic University,Shenyang 110159,China)

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110159

出　　处：《湿法冶金》2021年第6期483-487,共5页Hydrometallurgy of China

基　　金：国家自然科学基金资助项目(52074082)。

摘　　要：研究制备了聚1-丁基-3-乙烯基咪唑溴盐(P[BVIM]Br-MNPs)、聚1-己基-3-乙烯基咪唑溴盐(P[HVIM]Br-MNPs)、聚1-辛基-3-乙烯基咪唑溴盐(P[OVIM]Br-MNPs)3种聚离子液体固相吸附剂,考察了P_(2)0_(4)掺杂比、固相吸附剂用量、吸附时间、吸附温度、水相初始pH和La^(3+)浓度对3种聚离子液体吸附La^(3+)的影响,用Langmuir与Freundlich等温吸附模型对试验数据进行拟合。结果表明:在吸附温度70℃、1 g P[OVIM]Br-MNPs掺杂1 mL P_(2)0_(4)条件下,P[OVIM]Br-MNPs对La^(3+)的饱和吸附量为57.80 mg/g,吸附效果较好,吸附过程以单层吸附为主。Three kinds of polyionic liquid solid phase adsorbent(P[BVIM]Br-MNPs),P[HVIM]Br-MNPs and(P[OVIM]Br-MNPs)were prepared.The effects of P_(2)0_(4) doping ratio,solid phase adsorbent amount,adsorption time and temperature,aqueous phase pH and initial mass concentration of La^(3+) in aqueous phase on adsorption of La^(3+) by polyionic liquid solid phase adsorbent were examined.Langmuir and Freundlich isotherm equations were used to fit test data.The results show that the saturated adsorption capacity of the solid phase adsorbent for La^(3+)is 57.80 mg/g at 70℃and 1 g P[OVIM]Br-MnPs doped with 1 mL P_(2)0_(4),and the adsorption process is mainly monollayer adsorption.

关 键 词：聚离子液体 P_(2)0_(4) 固相吸附 镧 吸附 

分 类 号：TF845.3[冶金工程—有色金属冶金] O645.1[理学—物理化学]