壳聚糖对镍离子(Ⅱ)的吸附性能研究  

Adsorption of Ni(Ⅱ) in Solution by Chitosan

作　　者：刘运学[1] 范兆荣[2] 孙晓红 夏心泉[1] 

机构地区：[1]沈阳化工学院,辽宁沈阳110021 [2]沈阳建筑工程学院,辽宁沈阳110015 [3]上海宝钢普莱克斯实用气体有限公司,上海200941

出　　处：《沈阳化工学院学报》2002年第3期202-205,共4页Journal of Shenyang Institute of Chemical Technolgy

摘　　要：用壳聚糖对镍离子 (Ⅱ )的吸收条件进行研究 ,探索脱乙酰度、粒度大小 ,溶液的 pH值和镍离子 (Ⅱ )起始浓度等方面对壳聚糖吸附性能的影响 .结果表明 :壳聚糖对镍离子的吸附具有Langmuir吸附特征 ,其吸附最佳条件是壳聚糖脱乙酰度大于 90 % ,镍离子 (Ⅱ )溶液pH值为 7.5～8.0 .The effects of various factors such as the degree of deacetylation,particle size,pH and intial metal concentration on the adsorption behavior of Ni 2+ by chitosan were investigated.The results showed that adsorption of Ni(Ⅱ) obeys the langmuir equation and the optimum conditions of adsorption by chitosan are as follows: the degree of deacetylation was over 90 %;pH in Ni 2+ solution was 7.5～8.0.

关 键 词：壳聚糖 镍离子 吸附性能 研究 

分 类 号：O636.1[理学—高分子化学] O614.813[理学—化学]