天津工业大学学报2026，Vol.45Issue(2)：19-23,5.DOI:10.3969/j.issn.1671-024x.2026.02.003
不同离子交联海藻酸盐水凝胶膜活化过硫酸盐对染料的快速去除
Rapid removal of dyes by persulfate activated with different ion-crosslinked alginate hydrogel membranes
摘要
Abstract
In order to solve the problem that the heterogeneous catalytic system of traditional advanced oxidation technology has low mass transfer efficiency and reduces its catalytic effect on pollutants,alginate(MAlg)hydrogel films with different transition metal ions(Co2+,Ni2+,Cu2+,and Zn2+)were prepared by using sodium alginate(NaAlg)as membrane material.Combined with membrane separation technology and persulfate advanced oxidation technolo-gy,the mass transfer process was accelerated by cross-flow filtration,and the degradation performance of the membrane on Orange G(OG)dye was investigated.The species of free radicals in the catalytic system were iden-tified by radical quenching experiment and electron paramagnetic resonance(EPR).The results showed that the cobalt alginate(CoAlg)hydrogel film had the best catalytic performance,and the dye removal rate was close to 100%within 1 min,indicating that the application of membrane separation technology significantly improved the catalytic degradation performance.In the catalytic system,sulfate radical(SO4·-)and hydroxyl radical(·OH)play a leading role.关键词
海藻酸盐水凝胶膜/膜分离/高级氧化技术/染料去除/自由基Key words
alginate hydrogel membrane/membrane separation/advanced oxidation technology/dye removal/free radical分类
化学化工引用本文复制引用
赵孔银,蒋俊,王明林,王文爽,陈敏..不同离子交联海藻酸盐水凝胶膜活化过硫酸盐对染料的快速去除[J].天津工业大学学报,2026,45(2):19-23,5.基金项目
国家自然科学基金项目(51773252) （51773252）
天津市应用基础与前沿技术研究计划重点项目(16JCZDJC37500) （16JCZDJC37500）
