使用绿色方法制备通过二价锌离子交联并与氧化锌纳米颗粒（ZnO）掺入的功能性羧甲基纤维素（CMC）水凝胶，而无需使用碱性试剂。在该方法中，羧甲基纤维素钠不仅用作水凝胶基质，而且还用于释放游离羟基，这增加了反应混合物的pH，因此导致形成ZnO。分别使用FTIR和FE-SEM分析表征了水凝胶的化学结构和形态。研究了水凝胶的吸水能力与温度和pH的关系。FE-SEM结果表明在水凝胶中形成了ZnO颗粒，而吸水率结果支持了羧甲基纤维素链中锌离子交联的形成。CMC / ZnO纳米复合水凝胶对病原菌具有很强的抗菌活性大肠杆菌和单核细胞增生李斯特菌。

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A green method was used for the preparation of functional carboxymethyl cellulose (CMC) hydrogel crosslinked by divalent zinc ions and incorporated with zinc oxide nanoparticles (ZnO) without using alkaline reagents. In the process, sodium carboxymethyl cellulose was used not only as a hydrogel matrix but also for the release of free hydroxyl groups, which increases the pH of the reaction mixture, consequently leading to the formation of ZnO. The chemical structure and morphology of the hydrogels were characterized using FTIR and FE-SEM analysis, respectively. The water absorption capacity of the hydrogels was studied as a function of temperature and pH. The results of FE-SEM showed the formation of ZnO particles in the hydrogel, while the water absorption capacity results supported the formation of zinc ion cross-linking within the carboxymethylcellulose chains. The CMC/ZnO nanocomposite hydrogel exhibited strong antimicrobial activity against pathogenic bacteria E. coli and L. monocytogenes.