高师理科学刊2026，Vol.46Issue(5)：52-59,8.DOI:10.3969/j.issn.1007-9831.2026.05.009
含氟共价有机框架的制备及其对酚类污染物的吸附性能
Preparation of fluorinated covalent organic framework and its adsorption performance for phenolic pollutants
摘要
Abstract
A novel fluorine-functionalized covalent organic framework material,PIP-CF3-TFPB COF,was successfully synthesized via the solvothermal method.The structure and morphology of the material were characterized by means of Fourier transform infrared spectroscopy,powder X-ray diffraction,and scanning electron microscopy.The results show that the material possesses high crystallinity and a regular layered stacking structure,with trifluoromethyl groups successfully incorporated into the framework.Using hydroquinone,catechol,resorcinol,phenol,and paracetamol as target pollutants,the effects of adsorbent dosage,initial concentration,and contact time on the adsorption performance were investigated.The results show that the material exhibits excellent adsorption capacity for all five phenolic pollutants,the equilibrium adsorption capacities were 584,527,545,458,437 mg·g-1,respectively.The adsorption process conforms to the pseudo-second-order kinetic model and the Langmuir isotherm model,indicating a monolayer chemical adsorption process.Thermodynamic parameters reveal that the adsorption process is spontaneous and exothermic.Adsorption mechanism studies suggest that hydrogen bonding between the trifluoromethyl groups and phenolic hydroxyl groups,along with π-π stacking interactions within the framework,are the primary driving forces for adsorption.Furthermore,the material demonstrates good recyclability and anti-interference capability in real water samples.The study provides a theoretical basis and technical support for the application of fluorine-functionalized COFs materials in the field of environmental water treatment.关键词
共价有机框架/三氟甲基/酚类污染物/吸附/氢键作用/π-π堆积作用Key words
covalent organic framework/trifluoromethyl/phenolic pollutants/adsorption/hydrogen bonding/π-π stacking interaction分类
化学化工引用本文复制引用
余越,万路歌,崔瞳,季安盟,吴海婷,高泽淼,赵冰..含氟共价有机框架的制备及其对酚类污染物的吸附性能[J].高师理科学刊,2026,46(5):52-59,8.基金项目
黑龙江省大学生创新创业训练计划项目(Y202410232185) （Y202410232185）
国家自然科学基金项目(21978140) （21978140）
