漆酚磁性印迹聚合物的制备及其对万古霉素的特异性吸附  

Preparation of Urushiol Magnetic Imprinted Polymer and Its Specific Adsorption of Vancomycin

作　　者：薛兴颖 齐志文 周昊[1] 陈虹霞[1] 王志宏 王成章[1] XUE Xingying;QI Zhiwen;ZHOU Hao;CHEN Hongxia;WANG Zhihong;WANG Chengzhang(Institute of Chemical Industry of Forest Products,CAF,Key Lab.of Biomass Energy and Material,Jiangsu Province,Key Lab.of Chemical Engineering of Forest Products,National Forestry and Grassland Administration,National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass,Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources,Nanjing 210042,China;Guangdong Academy of Forestry,Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization,Guangzhou 510520,China)

机构地区：[1]中国林业科学研究院林产化学工业研究所,江苏省生物质能源与材料重点实验室,国家林业和草原局林产化学工程重点实验室,林木生物质低碳高效利用国家工程研究中心,江苏省林业资源高效加工利用协同创新中心,江苏南京210042 [2]广东省林业科学研究院,广东省森林培育与保护利用重点实验室,广东广州510520

出　　处：《林产化学与工业》2025年第2期116-124,共9页Chemistry and Industry of Forest Products

基　　金：江苏省生物质能源与材料重点实验室基本科研业务费项目(JSBEM-S-202315);国家重点研发计划资助项目(2022YFD2200803)。

摘　　要：以Fe_(3)O_(4)纳米颗粒为磁性内核、聚合漆酚(PUs)为外壳、万古霉素(Van)为模板分子,制备了一种核壳结构的漆酚磁性印迹聚合物(Fe_(3)O_(4)@PUs MIPs)。采用红外光谱(FT-IR)、透射电镜(TEM)、X射线衍射(XRD)、X射线光电子能谱(XPS)、磁性分析等对该聚合物进行了表征,并对其吸附模型和在实际水样中应用性能进行了考察。研究结果表明:Fe_(3)O_(4)表面成功包裹PUs层,所得Fe_(3)O_(4)@PUs MIPs呈不规则方形,粒径约为381.2 nm,且具有超顺磁性,饱和磁化强度为58.83 A·m~2/kg。Fe_(3)O_(4)@PUs MIPs对Van具有优异的吸附性能,当pH值为7.0、温度为30.0℃、Van质量浓度为10.0 mg/L时,去除率达到98.8%,平衡吸附量为49.4 mg/g,吸附动力学符合准二级动力学模型,等温吸附过程符合Freundlich模型。Fe_(3)O_(4)@PUs MIPs对Van展现了优异的选择性吸附性能,对Van的吸附能力明显强于四环素(TC)、环丙沙星(CIP)和布洛芬(IBP);经6次循环再生后,对Van的去除率依然维持在70%以上。此外,Fe_(3)O_(4)@PUs MIPs对自来水、湖水、养鸡场废水中Van的去除率均大于60%,具有良好的实际应用效果。A core-shell structured urushiol magnetic imprinted polymer(Fe_(3)O_(4)@PUs MIPs)was prepared using Fe_(3)O_(4)nanoparticles(NPs)as the magnetic core,PUs as the shell,and Vancomycin(Van)as the template molecule.The polymer was characterized by Fourier transform infrared spectrometer(FT-IR),transmission electron microscope(TEM),X-ray diffraction(XRD),X-ray photo-electron spectroscopy(XPS)and magnetic analysis.Moreover,its adsorption model and application performance in actual water samples were investigated.The results showed that Fe_(3)O_(4)surface was successfully coated with PUs layer,and the obtained Fe_(3)O_(4)@PUs MIPs was in an irregularly square shape with a particle size of approximately 381.2 nm and exhibited superparamagnetism with a saturation magnetization intensity of 58.83 A·m 2/kg.Fe_(3)O_(4)@PUs MIPs exhibited excellent adsorption performance for Van.When the pH value was 7.0,the temperature was 30.0℃,and the mass concentration of Van was 10 mg/L,the removal efficiency of Van reached 98.8%and the equilibrium adsorption capacity was 49.4 mg/g.The adsorption kinetics conformed to the pseudo second-order kinetic model,and the isothermal selective adsorption process conformed to the Freundlich isotherm model.Fe_(3)O_(4)@PUs MIPs showed excellent selective adsorption performance for Van,and the adsorption capacity for Van was significantly stronger than those of tetracycline(TC),ciprofloxacin(CIP)and ibuprofen(IBP).The removal rate of Van still remained above 70%after 6 cycles.In addition,the removal rate of Van in tap water,lake water,and chicken farm wastewater was more than 60%,which had a good application effect.

关 键 词：漆酚 纳米四氧化三铁 分子印迹聚合物 万古霉素 特异性吸附 

分 类 号：TQ35[化学工程]