Removal of copper by modified chitosan adsorptive membrane

doi:10.1007/s11705-009-0123-7

Front Chem Eng Chin

2009, Vol. 3

Issue (1) : 102-106 https://doi.org/10.1007/s11705-009-0123-7

RESEARCH ARTICLE

Removal of copper by modified chitosan adsorptive membrane

Xiaoshuai LIU, Zihong CHENG, Wei MA(

)

Department of Chemistry, Dalian University of Technology, Dalian 116024, China

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Abstract

In this study, a novel adsorptive membrane was prepared from chitosan as the functional polymer and some additive blend solutions by solution casting method. The modified chitosan membrane was characterized by FTIR and its Water Swelling Ratio (WSR). The adsorption of copper ions on the adsorptive membrane was investigated in batch experiments. The results obtained from the experiments indicated that the membrane had a good adsorption capacity for copper ions, the optimal ionic strength and pH were 0.1 and 5-6, respectively. Compared with the Langmuir isotherm model, the experimental data were found to be following the Freundlich model.

Keywords chitosan adsorptive membrane copper removal environmental engineering heavy metal isotherm model

Corresponding Author(s): MA Wei,Email:mawei@dlut.edu.cn

Issue Date: 05 March 2009

Cite this article:

Xiaoshuai LIU,Zihong CHENG,Wei MA. Removal of copper by modified chitosan adsorptive membrane[J]. Front Chem Eng Chin, 2009, 3(1): 102-106.

URL:

https://academic.hep.com.cn/fcse/EN/10.1007/s11705-009-0123-7
https://academic.hep.com.cn/fcse/EN/Y2009/V3/I1/102

Fig.1 FTIR spectra of YC, CS/YC and CS membranes

Fig.2 Effect of ionic strength on copper ions adsorption

Fig.3 Effect of adsorbent dose on copper ions adsorption

Fig.4 Effect of pH on copper ions adsorption

Fig.5 Effect of initial copper ions concentration on copper ions adsorption

Tab.1 Parameters, Regression Coefficients () and of the Langmuir and Freundlich isotherm models

Fig.6 Effect of temperature on copper ions adsorption

Fig.7 Langmuir and Freundlich isotherm models for copper ions adsorption on the modified chitosan membrane

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