A study in sorption of some metal ions on novel hydrogels based on modified cellulosics and 2-acrylamido-2-methyl propane sulphonic acid

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• 作者：Chauhan ; Ghanshyam S. ; Guleria ; Lalit K. ; Mahajan ; Swati
• 关键词：2-acrylamido-2-methyl propanesulphonic acid ; Cellulosics ; Hydrogels ; Hydroxypropylcellulose ; Partition coefficients ; Retention capacity
• 刊名：Desalination
• 出版年：2001
• 出版时间：December 30, 2001
• 年：2001
• 卷：141
• 期：3
• 页码：325-329
• 全文大小：376 K

文摘

New polymeric backbones were synthesized from cellulose extracted from pine needles, a renewable resource of the Western Himalayas. Conditions for optimum network yield were evaluated as a function of irradiation dose, concentrations of monomer and crosslinker and amount of water for interpenetrating networks (IPNs) of hydroxypropyl cellulose (HPC) with 2-acrylamido-2-methyl propanesulphonic acid (AAmPSA). N, N-methylene bisacrylamide was used as crosslinker. At optimum conditions thus evaluated, IPNs of cellulose and other cellulosics like cyanoethylcellulose, hydroxyethylcellulose, hydrazinodeoxycellulose and cellulosephosphate were synthesized. These hydrogels were used in sorption of Fe²⁺, Cu²⁺ and Cr⁶⁺ metal ions. The results of ion sorption as partitioning of ions between polymeric matrices and liquid phase are reflected in high values of partition coefficients for Fe²⁺ and Cu²⁺.