安徽农业科学Issue(6)：3513-3514,2.
氧化淀粉对水溶液中Cd2+的吸附研究
Adsorption of Cd2+ in Water by Oxidized Starch
黄海霞 1张颖 1张雪琴1
作者信息
- 1. 绵阳师范学院化学与化学工程学院,四川绵阳621000
- 折叠
摘要
Abstract
[Objective] The aim was to explore the adsorption effect of Cd2+ in water by oxidized starch. [ Method ] Oxidized starch was prepared by using soluble starch as material and 30% hydrogen peroxide as oxidant. Adsorption effect of Cd2+ in water by oxidized starch and the factors affecting adsorption properties were investigated, and the adsorption isotherm was studied. [ Result] The adsorption of Cd2+ in water by oxidized starch was affected by adsorption temperature, pH, the amount of adsorption reagents and adsorption time, among them pH was most important. The optimal adsorption conditions were pH 5, adsorption temperature 30℃, adsorption time 4 h and the amount of adsorption reagents 3 g, and the removal rate of Cd2+ in water reached 82.15% . The adsorption behavior of oxidized starch to Cd2+ fit well into the Lang-muir model under the experimental condition. [ Conclusion] The oxidized starch prepared by using soluble starch as material and 30% hydrogen peroxide as oxidant shows good adsorption effect to Cd2+ in water.关键词
氧化淀粉/吸附/Cd2+Key words
Oxidized starch/ Adsorption/ Cd2+分类
资源环境引用本文复制引用
黄海霞,张颖,张雪琴..氧化淀粉对水溶液中Cd2+的吸附研究[J].安徽农业科学,2012,(6):3513-3514,2.
