材料科学与工程学报2025，Vol.43Issue(2)：202-209,8.DOI:10.14136/j.cnki.issn1673-2812.2025.02.005
磁性共价有机骨架Fe3O4@COFs的合成及其对T-2毒素的吸附
Synthesis of Magnetic Covalent Organic Framework Fe3O4@COFs and Its Adsorption Technology Study on T-2 Toxin
摘要
Abstract
Mycotoxin T-2 is highly toxic and commonly found in contaminated crops and their products.It is extremely hazardous to humans and livestock.Potential risks can be eliminated by adsorption treatment to ensure the safety of related production and life.In this study,a covalent organic framework material of Fe3O4@COFs was synthesized by glutaraldehyde coupling method.The adsorption equilibrium,adsorption kinetics and adsorption mechanism of Fe3O4@COFs on T-2 toxin were studied.The results showed that the magnetic covalent organic framework of Fe3O4@COFs had a significant effect on the adsorption and enrichment of T-2 toxin,and the adsorption process could be completed within 30 min.The adsorption kinetic model is more in line with the pseudo-second-order kinetic model.The adsorption mechanism is that there is a"π-π"interaction between Fe3O4@COFs and T-2 toxin.Studies have also shown that chemical adsorption is the rate-determining step of T-2 toxin.It was used as a magnetic solid phase extraction material to adsorb and enrich T-2 toxin in food.When the extraction conditions were optimized,a mixed solution of acetonitrile and formic acid was used as the eluent.The elution rate was from 83.90％to 89.10％,and the recovery rate was 83.44％-88.6％.The synthesized Fe3O4@COFs material,combined with liquid chromatography tandem mass spectrometry(LC-MS/MS),enabled the adsorption and enrichment of T-2 toxin in food.关键词
共价有机骨架/Fe3O4@COFs/T-2毒素/吸附富集Key words
Covalent organic framework/Fe3O4@COFs/T-2 toxin/Adsorption and enrichment引用本文复制引用
武晋海,邱玉,孙博,朱威,李毓,白家磊..磁性共价有机骨架Fe3O4@COFs的合成及其对T-2毒素的吸附[J].材料科学与工程学报,2025,43(2):202-209,8.基金项目
国家重点研发计划课题项目(2018YFC1602605,AMS-ZQJJ-2021-004) （2018YFC1602605,AMS-ZQJJ-2021-004）
