%0 Journal Article
%T Thermodynamic and kinetic studies of adsorption of 1-butyl-3- methylimidazole chloride ionic liquid onto PAA hydrogel
聚丙烯酸水凝胶对氯化-1-丁基-3-甲基咪唑离子液体的吸附热力学和动力学研究
%A Wang Yuan
%A Qi Xiuxiu
%A Yang Xiuju
%A Ni Liang
%A
王园
%A 齐秀秀
%A 杨秀菊
%A 倪良
%J 环境工程学报
%D 2012
%I
%X A super absorbent of PAA hydrogel was prepared by solution polymerization method. The pH value and the temperature of solution had an effect on the adsorption of 1-butyl-3-methylimidazole chloride ionic liquid onto PAA hydrogel. The results showed that the adsorption capacities of 1-butyl-3-methylimidazole chloride ionic liquid increased with increasing pH value. When pH=2~4, the adsorption capacities increased significantly,while pH was 4, it increased slowly with increase of pH. The adsorption capacities of ionic liquid decreased with increasing temperature. The adsorption behavior of 1-butyl-3-methylimidazole chloride could be described reasonably well by Langmuir isotherm. Chemical adsorption may be inferred by the activation energy Ea (Ea=52.470 kJ/mol)of adsorption obtained from the pseudo-second-order kinetic model.
%K PAA hydrogel
%K 1-butyl-3-methylimidazole chloride
%K ionic liquid
%K absorption
聚丙烯酸水凝胶
%K 氯化-1-丁基3-甲基咪唑
%K 离子液体
%K 吸附
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=37D4B66310E46B830D2FC74D72010229&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=708DD6B15D2464E8&sid=CA8980C2187B8C18&eid=2D50F77B47952B9C&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=13