光度法研究壳聚糖交联粉煤灰对Mn^(2+)的吸附性能  

Preparation of Chitosan Crosslinked Fly Ash and Its Adsorption to Mn^(2+) by Spectrophotometry

作　　者：曹书勤[1] 金春雪[1] 缑星[1] 杨自成[1] 

机构地区：[1]信阳师范学院化学化工学院,河南省信阳市南湖路237号464000

出　　处：《光谱实验室》2013年第5期2517-2520,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：河南省科技厅科技攻关项目(编号:112102310579)

摘　　要：常温下,以壳聚糖和酸性粉煤灰为原料,制备壳聚糖交联酸性粉煤灰吸附剂;用光度法分析其对M n2+的吸附性能。结果表明:交联时,当壳聚糖与酸性粉煤灰的质量比为1∶11,交联剂用量为2mL/g;吸附时,废水pH为6,吸附时间为90min,吸附剂用量为10g/L时,M n2+去除率为97.6%。The composite adsorbent was prepared with chitosan and acid modified fly ash at room temperature. The absorption performance of it on Mn2＋ was analyzed by spectrophotometry. The result show that： under the mass ratio of the chitosan and acid modified fly ash 1：11,the dosage of crosslinking agent 2mL/g and with the adsorption conditions the waste water pH was 6,adsorption time was 90min,the mass of adsorbent was 10g/L,the removal rate reach to 97.6%.

关 键 词：壳聚糖 酸性粉煤灰 交联 锰离子 

分 类 号：X703[环境科学与工程—环境工程] O657.32[理学—分析化学]