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.
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
