Optimization of polyacrylonitrile–cysteine resin synthesis and its selective removal of Cu(II) in aqueous solutions

• Published in: Chinese chemical letters 2017-02, Vol.28 (2), p.319-323
• Main Authors: Chang, Yang, Shen, Chen, Li, Pin-Yi, Fang, Lei, Tong, Zai-Zai, Min, Min, Xiong, Chun-Hua
• Format: Article
• Language: English
• Subjects: Adsorption; Chelating resin; Cu(II); Cysteine; RSM
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2016.08.003

Polyacrylonitrile beads (PAN) cysteine (CS) was synthesized from polyacrylonitrile beads (PAN) and cysteine (CS), which can provide a potential application for selective removal of copper from waste solution.▪ Polyacrylonitrile beads (PAN) cysteine (CS) was synthesized from polyacrylonitrile beads (PAN) and cysteine (CS). The content of the functional group and the percentage conversion of the functional group of PAN-CS prepared under the optimum condition using response surface methodology (RSM) for the first attempt were 3.22mmol/g and 35.78%. The structure was characterized by FT-IR and elemental analysis. The adsorption properties of the resin for Cu(II) were investigated by batch and column experiments. Batch adsorption results suggested that PAN-CS had higher adsorption capability for Cu(II) than other metal ions and maximum saturated adsorption capacity was 184.7mg/g. The resin and its metal complexes were studied by FT-IR. Furthermore, the resin can be eluted easily using 1mol/L HCl. PAN-CS can provide a potential application for selective removal of copper from waste solution.