Synthesis of biomass-based polymer brush-on-brush composite for adsorption of copper(II) from aqueous media

• Published in: Cellulose (London) Vol. 29; no. 14; pp. 7901 - 7915
• Main Authors: Wang, Kaili, Zhai, Yuxia, Dong, Shiyu, Liu, Jianzhuang, Wei, Donglei, Chen, Hou, Bai, Liangjiu, Yang, Huawei, Yang, Lixia, Wang, Wenxiang
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.09.2022; Springer Nature B.V
• Subjects: Adsorbents; Adsorption; Alzheimer's disease; Aqueous solutions; Biomass; Bioorganic Chemistry; Brushes; Cellulose; Ceramics; Chemical synthesis; Chemistry; Chemistry and Materials Science; Composite materials; Composites; Copper; Fruits; Glass; Natural Materials; Organic Chemistry; Original Research; Physical Chemistry; Polymer Sciences; Polymerization; Polymers; Residues; Selectivity; Sustainable Development; Visible light photocatalyzed controlled polymerization; Copper(ii) adsorption; Biomass-based composite material; Apple residue; Polymer brush-on-brush
• ISSN: 0969-0239; 1572-882X
• DOI: 10.1007/s10570-022-04764-7

A biomass-based polymer brush-on-brush composite was synthesized by two sequential visible light-induced metal-free atom transfer radical polymerization steps for the removal of Cu(II) in aqueous media. Cellulose abstracted from apple residue was used as the matrix. The defined structure on the surface of the composite was supported by the characterization results. Influences of solution pH, initial metal concentration and ionic strength on the adsorption behavior of the adsorbent were determined. Adsorption mechanism was verified by kinetic studies and adsorption isotherms. The adsorbent exhibited good adsorption selectivity and capacity on Cu(II) towards other metal ions. Moreover, the adsorbent can be reused for five times with the desorption rate remaining above 90%. Which provides us a choice for the high value-added utilization of fruit residues.