磁性超交联聚合物的制备及其对四环素的吸附OA
Preparation of magnetic hyper-crosslinked polymer and its adsorption for tetracycline
四环素的滥用所引起的过量排放严重威胁生态环境安全和人类健康.采用Friedel-Crafts烷基化反应制备得到了磁性超交联聚合物(Fe3O4@HCPs-PTES),并研究了其对四环素(TC)的吸附去除.系列表征表明,合成的Fe3O4@HCPs-PTES材料为结构松散,平均孔径和比表面积分别为2.9 nm和559 m2/g的多孔材料.吸附动力学和热力学研究发现,TC 在 Fe3O4@HCPs-PTES 上的吸附符合双室一级动力学模型和Langmuir等温模型,其最大饱和吸附容量为493.7 mg/g,且该过程为自发、吸热过程;该吸附过程的作用力包括氢键、络合作用、π-π相互作用和孔隙填充.Fe3O4@HCPs-PTES材料具有良好的TC吸附能力、易于磁性回收以及可重复使用性,在废水处理方面应用前景广阔.
Excessive discharge of tetracycline resulting from its misuse poses a serious threat to ecological safety and human health.In this study,a magnetic hyper-crosslinked polymer(Fe3O4@HCPs-PTES)was synthesized via Friedel-Crafts alkylation and employed for the adsorptive removal of tetracycline(TC)from aqueous solutions.Comprehensive characterization revealed that the as-synthesized Fe3O4@HCPs-PTES exhibited a loose porous structure with an average pore size of 2.9 nm and a specific surface area of 559 m²/g.Adsorption kinetics and isotherm studies demonstrated that TC adsorption onto Fe3O4@HCPs-PTES followed the two-compartment first-order kinetic model and the Langmuir isotherm model,with a maximum adsorption capacity of 493.7 mg/g.Thermodynamic analysis indicated that the adsorption process was spontaneous and endothermic.The adsorption mechanism involved multiple interactions,including hydrogen bonding,complexation,π-π stacking,and pore filling.Benefiting from its excellent adsorption capacity,facile magnetic separability,and good reusability,Fe3O4@HCPs-PTES exhibits considerable potential for application in wastewater treatment.
张雅萱;舒俊尚;杜治平
湖北省新型反应器与绿色化学工艺重点实验室(武汉工程大学),湖北 武汉 430205湖北省新型反应器与绿色化学工艺重点实验室(武汉工程大学),湖北 武汉 430205湖北省新型反应器与绿色化学工艺重点实验室(武汉工程大学),湖北 武汉 430205
化学化工
超交联聚合物磁性四环素吸附
hyper-crosslinked polymermagnetismtetracyclineadsorption
《武汉工程大学学报》 2026 (2)
124-132,9
武汉工程大学研究生教育创新基金(CX2023006)
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