title: Novel recyclable adsorbent for the removal of copper(II) and lead(II) from aqueous solution.
abstract: Adsorbents synthesized with biopolymer have been widely used in the removal of toxic metal ions. Novel high-efficiency, recyclable, and low-cost adsorbents have received more and more attention. Chitosan and cellulose are the most abundant biopolymers in nature. Composite modified adsorbent (CSTEC) was synthesized as novel fibrous materials for the adsorption of Cu2+and Pb2+ions from water in this study. The functional fiber was characterized to investigate the surface appearance, functional groups, crystallinity, and thermal stability. The kinetics study revealed that adsorption processes of Cu2+and Pb2+ions on the CSTEC followed the second-order kinetics model. CSTEC showed better performance (Cu2+, 95.24; Pb2+, 144.93mgg-1) than most of other adsorbents. The co-existing ions (K+, Na+, Mg2+) had no significant influence on the removal of target ions by the CSTEC. The excellent reusability indicated that CSTEC had the promising application in the treatment of toxic metal pollution.
authors.affiliation: School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
authors.forename: Yaolan
authors.initials: Y
authors.lastname: Niu
authors.affiliation: School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China; School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
authors.forename: Kan
authors.initials: K
authors.lastname: Li
authors.affiliation: School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
authors.forename: Diwen
authors.initials: D
authors.lastname: Ying
authors.affiliation: School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
authors.forename: Yalin
authors.initials: Y
authors.lastname: Wang
authors.affiliation: School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China. Electronic address: jpjia@sjtu.edu.cn.
authors.forename: Jinping
authors.initials: J
authors.lastname: Jia
mesh_terms: D000327:Adsorption; D048271:Chitosan / Q000737:chemistry; D003300:Copper / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D007477:Ions; D007700:Kinetics; D007854:Lead / Q000302:isolation & purification*; D059027:Recycling; D012996:Solutions; D013052:Spectrometry, X-Ray Emission; D013696:Temperature; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
chemical_list: D007477:Ions; D012996:Solutions; D014874:Water Pollutants, Chemical; D007854:Lead; D003300:Copper; D048271:Chitosan
keywords: Adsorption; Chitosan; Cotton; Reusability