Adsorption behavior of cross-linked chitosan modified by graphene oxide for Cu(II) removal

被引：0
作者：
Yan Yang
Wen-qin Wu
Hai-hui Zhou
Zhong-yuan Huang
Ting-ting Ye
Rui Liu
Ya-fei Kuang
机构：
[1] Hunan University,College of Chemistry and Chemical Engineering
[2] Central South University of Forestry and Technology,College of Materials Science and Engineering
来源：
Journal of Central South University | 2014年 / 21卷
关键词：
chitosan; graphene oxide; adsorption; Cu(II);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Cross-linked chitosan(CS), cross-linked chitosan/graphene(CS/RGO10) and cross-linked chitosan/graphene oxide(CS/GO10) were prepared as adsorbents for Cu(II). The effects of pH, contact time, adsorbent dosage and initial concentration of Cu(II) on the adsorbing abilities of CS,CS/RGO10 and CS/GO10 to Cu(II) were investigated. The results demonstrate that the adsorption capacities of CS/GO10 and CS/RGO10 are greater than that of CS, especially at pH 5.0 and the adsorption capacities are 202.5, 150 and 137.5 mg/g, respectively. Their behaviors obey the Freundlich isotherm model very well. Additionally, CS/GO10 has the shortest time to achieve adsorption equilibrium among them and can be used as a perspective adsorbent for Cu(II).
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页码：2826 / 2831
页数：5
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