塑料科技2024，Vol.52Issue(9)：27-31,5.DOI:10.15925/j.cnki.issn1005-3360.2024.09.005
海藻酸钠/聚乙烯醇复合凝胶的制备及吸附Co2+、MB的研究
Study on Preparation of SA/PVA Composite Hydrogel and Adsorption of Co2+and MB
摘要
Abstract
Using sodium alginate(SA),polyvinyl alcohol(PVA)as raw materials,acrylic acid(AA)as monomer to synthesize SA/PVA-g-AA hydrogel,the functional group structure and micromorphology of the hydrogel material were characterized.Using Co2+/MB as the adsorption object,the effects of pH,initial mass concentration,hydrogel addition on the adsorption of hydrogel performance were investigated,and the adsorption dynamics were explored.The results show that SA/PVA-g-AA hydrogel is a porous surface area of 120.896 7 m2/g and an average adsorption pore diameter of 8.069 08 nm which is beneficial to the adsorption of Co2+and MB.The composite hydrogel has a fast adsorption rate for Co2+/MB,and can reach adsorption equilibrium within 60 min,which is consistent with the quasi-second-order kinetic model.The maximum removal rates of Co2+and MB reaches 95.01%and 98.78%,respectively,when the pH value is 3 and 7,the hydrogel dosage is 0.15 g,and the initial mass concentration is 100 mg/L.关键词
海藻酸钠/聚乙烯醇/复合凝胶/Co2+/MB/动力学Key words
Sodium alginate/PVA/Composite hydrogel/Co2+/MB/Dynamics分类
通用工业技术引用本文复制引用
吴淑茗,梁雯霞,吴佳斌..海藻酸钠/聚乙烯醇复合凝胶的制备及吸附Co2+、MB的研究[J].塑料科技,2024,52(9):27-31,5.基金项目
福建省大学生创新创业训练计划(S202412992019) （S202412992019）
闽南科技学院数字化课程建设项目(MKJG-2023-005) （MKJG-2023-005）
闽南科技学院校级课程思政示范课程(MKKCSZ-2023-07) （MKKCSZ-2023-07）
