title: Sorption of heavy metal ions onto carboxylate chitosan derivatives--a mini-review.
abstract: Chitosan is of importance for the elimination of heavy metals due to their outstanding characteristics such as the presence of NH2 and -OH functional groups, non-toxicity, low cost and, large available quantities. Modifying a chitosan structure with -COOH group improves it in terms of solubility at pH ≤7 without affecting the aforementioned characteristics. Chitosan modified with a carboxylic group possess carboxyl, amino and hydroxyl multifunctional groups which are good for elimination of metal ions. The focal point of this mini-review will be on the preparation and characterization of some carboxylate chitosan derivatives as a sorbent for heavy metal sorption.
authors: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; Department of Ecological Agriculture, Bolgatanga Polytechnic, P.O. Box 767, Bolgatanga, Ghana.
authors: Peter Osei
authors: PO
authors: Boamah
authors: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
authors: Yan
authors: Y
authors: Huang
authors: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
authors: Mingqing
authors: M
authors: Hua
authors: 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: Qi
authors: Q
authors: Zhang
authors: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
authors: Jingbo
authors: J
authors: Wu
authors: Department of Ecological Agriculture, Bolgatanga Polytechnic, P.O. Box 767, Bolgatanga, Ghana.
authors: Jacqueline
authors: J
authors: Onumah
authors: School of Agriculture, University of Cape Coast, Cape Coast, Ghana.
authors: Livingstone K
authors: LK
authors: Sam-Amoah
authors: Geology Department, MMG, Golden Grove, PMB 7 Geraldton, WA, Australia.
authors: Paul Osei
authors: PO
authors: Boamah
mesh_terms: D000327:Adsorption; D002264:Carboxylic Acids / Q000737:chemistry*; D048271:Chitosan / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000379:methods; D007477:Ions; D019216:Metals, Heavy / Q000737:chemistry*; D009930:Organic Chemicals / Q000737:chemistry; D012989:Soil Pollutants / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D002264:Carboxylic Acids; D007477:Ions; D019216:Metals, Heavy; D009930:Organic Chemicals; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical; D048271:Chitosan
keywords: Carboxylate chitosan derivatives; Characterization; Heavy metals; Preparation; Sorption