纺织工程学报2025，Vol.3Issue(4)：1-11,11.
羧基化纤维素/海藻酸钠气凝胶的制备及对染料吸附性能研究
A study on preparation of carboxylated cellulose/sodium alginate aerogel and its adsorption property for dyes
摘要
Abstract
The defects such as low adsorption capacity and poor mechanical property existing in the pure cellu-lose aerogel have limited the application fields and regeneration performance of aerogel adsorbents.To address this problem,the carboxylated cellulose(CCNF)oxidized by TEMPO was used as the framework to combine with sodium alginate(SA),and then an efficient"hydrophilic assembly-sustained release gelation"two-step method and possible assembly mechanism were used to construct the CCNF/SA dual-network composite aero-gel.A series of characterizations showed that the aerogel presented a three-dimensional network interpenetrating porous structure,with the compressive strength and modulus of 100.13 kPa and 20.45 kPa,respectively.The dye adsorption results indicated that the aerogel exhibited excellent adsorption performance for different types of dyes(MB,CR,RB and X-3b),with the maximum monolayer adsorption capacities being 775.19,161.81,154.08 and 114.29 mg·g-1,respectively.The adsorption process conformed to the Langmuir isothermal model.The cyclic adsorption test indicated that the adsorption capacity of MB could still maintain 88.1%of its initial value even after five adsorption-desorption cycles.This study provides a research strategy for the development of high-strength and renewable biomass-based adsorption materials.关键词
纤维素/海藻酸钠/气凝胶/染料/吸附Key words
cellulose/sodium alginate/aerogel/dye/adsorption分类
轻工纺织引用本文复制引用
丁振华,魏伟伟,陈翔,江龙华,魏娜娜,焦晨璐,叶冬冬..羧基化纤维素/海藻酸钠气凝胶的制备及对染料吸附性能研究[J].纺织工程学报,2025,3(4):1-11,11.基金项目
安徽省高校自然科学基金重点资助项目(KJ2021A0129) （KJ2021A0129）
安徽省产品质量监督检验研究院开放课题(2024KY020). （2024KY020）
