Sorption of copper onto low molecular weight chitosan derivative from aqueous solution

Peter Osei Boamah; Yan Huang; Mingqing Hua; Jacqueline Onumah; Livingstone K Sam-Amoah; Paul Osei Boamah; Yaao Qian; Qi Zhang

doi:10.1016/j.ecoenv.2016.01.014

Sorption of copper onto low molecular weight chitosan derivative from aqueous solution

Ecotoxicol Environ Saf. 2016 Jul:129:154-63. doi: 10.1016/j.ecoenv.2016.01.014. Epub 2016 Mar 29.

Authors

Peter Osei Boamah¹, Yan Huang², Mingqing Hua², Jacqueline Onumah³, Livingstone K Sam-Amoah⁴, Paul Osei Boamah⁵, Yaao Qian⁶, Qi Zhang⁷

Affiliations

¹ School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; Department of Ecological Agriculture, Bolgatanga Polytechnic, Bolgatanga, Ghana. Electronic address: pierrodecota@hotmail.com.
² School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
³ Department of Ecological Agriculture, Bolgatanga Polytechnic, Bolgatanga, Ghana.
⁴ School of Agriculture, University of Cape Coast, Cape Coast, Ghana.
⁵ Geology Department, MMG, Golden Grove, PMB 7, Geraldton, WA, Australia.
⁶ Hainan Provincial Key Lab of Fine Chemistry, Hainan University, Haikou 570228, China.
⁷ School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; Hainan Provincial Key Lab of Fine Chemistry, Hainan University, Haikou 570228, China. Electronic address: qzhang@ujs.edu.cn.

PMID: 27039244
DOI: 10.1016/j.ecoenv.2016.01.014

Abstract

In this study, sorption of copper onto low molecular weight chitosan derivative was studied. Experimental parameters such as pH of the solution (A), temperature (B), dose of the sorbent (C), and concentration of solution (D) were considered. The statistical results indicated that the dose of sorbent (C) and Cu (II) concentration (D) influenced removal efficiency at 5% significance level. Also, some interactions such as ABCD, ACD, ABC and AC affected the removal process. The sorbent was characterized with FTIR, SEM and TG/DSC. Freundlich isotherm model was the best isotherm model. The kinetic study results correlated well with the pseudo-second-order model. The thermodynamic studies revealed that the nature of copper sorption was spontaneous and endothermic. Strong affinity of the sorbent for copper (II) was revealed by the Isothermal Titration Calorimetry (ITC) technique.

Keywords: Chitosan derivative; Copper; Isotherms; Sorption; Thermodynamics.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adsorption
Chitosan / chemistry*
Copper / chemistry*
Hydrogen-Ion Concentration
Kinetics
Molecular Weight
Solutions
Temperature
Thermodynamics
Water Pollutants, Chemical / chemistry*
Water Purification / methods

Substances

Solutions
Water Pollutants, Chemical
Copper
Chitosan