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Synthesis of 2-methylacrylamide/high-molecular-weight cellulose using gamma ray irradiation and preparation of cryogels for removing anionic dyes

文献类型： 外文期刊

作者： Zhang, Shuaifeng 1 ; Gu, Jun 2 ; Fan, Baochao 2 ; Li, Li 1 ; Li, Bin 2 ;

作者机构： 1.Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang, Jiangsu, Peoples R China

2.Jiangsu Acad Agr Sci, Jiangsu Key Lab Food Qual & Safety, Key Lab Vet Biol Engn & Technol,Minist Agr,Inst V, State Key Lab Cultivat Base,Minist Sci & Technol, 50 Zhongling Stree, Nanjing 210014, Peoples R China

3.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang, Jiangsu, Peoples R China

4.Yangzhou Univ, Jiangsu Coinnovat Ctr Prevent & Control Important, Yangzhou 225000, Jiangsu, Peoples R China

关键词： Cryogel; Colored wastewater; High-molecular-weight cellulose; Gamma ray irradiation; Solubility

期刊名称：CELLULOSE （ 影响因子：6.123； 五年影响因子：6.004 ）

ISSN： 0969-0239

年卷期： 2022 年 29 卷 10 期

页码：

收录情况： SCI

摘要： We report a new method for treating high-molecular-weight cellulose with Co-60 gamma rays to simultaneously graft functional groups onto the natural polymer and promote its solubility. After exposing cellulose to a 40-kilogray dose of gamma rays in the presence of 2-methylacrylamide, numerous amide groups were grafted onto the cellulose chain and its solubility increased. Amide-functionalized cryogels were prepared via the sol-gel method using the irradiated product as a raw material. Compared with 40-kGy-irradiated high-molecular-weight-cellulose cryogel, the amide-functionalized cryogels had relatively high zero-point charge pH values and excellent adsorption capacities with regard to anionic dyes over the pH range 2-10. They were also stable in terms of reusability. Therefore, the 2-methylacrylamide/highmolecular-weight cellulose cryogel has great potential for use in the treatment of colored surface wastewater. The Co-60 gamma ray irradiation technique described herein is a stable and highly efficient method for the preparation of functionalized cellulose products. [GRAPHICS] .

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