Equilibrium Studies in Adsorption of Hg(II) from Aqueous Solutions using Biocompatible Polymeric Polypyrrole-Chitosan Nanocomposite

被引：15
作者：
Salahi, S. [1 ]
Parvini, M. [2 ]
Ghorbani, M. [3 ]
机构：
[1] Islamic Azad Univ, Shahrood Branch, Dept Chem Engn, Shahrood, Iran
[2] Univ Semnan, Dept Chem Engn, Semnan, Iran
[3] Babol Univ Technol, Dept Chem Engn, Babol Sar, Iran
来源：
POLYCYCLIC AROMATIC COMPOUNDS | 2014年 / 34卷 / 03期
关键词：
chitosan; equilibrium models; Hg(II) removal; polypyrrole; HEAVY-METAL IONS; MERCURY REMOVAL; POLYANILINE; COMPOSITE; SORPTION;
D O I：
10.1080/10406638.2014.886077
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
This article deals with the adsorption of Hg(II) ions from aqueous solution on biocompatible polymeric polypyrrole-chitosan (PPy/CTN) nanocomposite. The Hg(II) uptake of PPy/CTN was quantitatively evaluated using sorption isotherms. In order to describe the isotherm mathematically, the experimental data of the removal equilibrium were correlated by either the Langmuir, Freundlich and Temkin equations. Results indicated that the Langmuir model gave a better fit to the experimental data than the other two equations. The adsorption capacity (q(max)) of PPy/CTN for Hg(II) ions in terms of mono-layer adsorption was 40 mg/g.
引用
收藏
页码：225 / 236
页数：12
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