title: Sorption of copper onto low molecular weight chitosan derivative from aqueous solution.
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.
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; Department of Ecological Agriculture, Bolgatanga Polytechnic, Bolgatanga, Ghana. Electronic address: pierrodecota@hotmail.com.
authors.forename: Peter Osei
authors.initials: PO
authors.lastname: Boamah
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Huang
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
authors.forename: Mingqing
authors.initials: M
authors.lastname: Hua
authors.affiliation: Department of Ecological Agriculture, Bolgatanga Polytechnic, Bolgatanga, Ghana.
authors.forename: Jacqueline
authors.initials: J
authors.lastname: Onumah
authors.affiliation: School of Agriculture, University of Cape Coast, Cape Coast, Ghana.
authors.forename: Livingstone K
authors.initials: LK
authors.lastname: Sam-Amoah
authors.affiliation: Geology Department, MMG, Golden Grove, PMB 7, Geraldton, WA, Australia.
authors.forename: Paul Osei
authors.initials: PO
authors.lastname: Boamah
authors.affiliation: Hainan Provincial Key Lab of Fine Chemistry, Hainan University, Haikou 570228, China.
authors.forename: Yaao
authors.initials: Y
authors.lastname: Qian
authors.affiliation: 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.
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhang
mesh_terms: D000327:Adsorption; D048271:Chitosan / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008970:Molecular Weight; D012996:Solutions; D013696:Temperature; D013816:Thermodynamics; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods
chemical_list: D012996:Solutions; D014874:Water Pollutants, Chemical; D003300:Copper; D048271:Chitosan
keywords: Chitosan derivative; Copper; Isotherms; Sorption; Thermodynamics