【作者】 鲁志伟； 李一凡； 李磊； 李婷； 朱代军； 周翠平； 饶含兵；

【Author】 Zhiwei Lu;Yifan Li;Lei Li;Ting Li;Daijun Zhu;Cuiping Zhou;Hanbing Rao;College of Science,Sichuan Agricultural University;

【机构】 四川农业大学理学院；

【摘要】 利用生物质衍生的分层碳材料（BC）修饰双金属铁氧体及双金属纳米粒子,结合其独特的折叠空间结构和良好的电导性能,制备了BC/CoFe-CoFe₂O₄纳米复合材料。利用电化学方法在材料修饰电极表面制备分子印迹聚合物（MIP）用于特异性测定抗生物类环境污染物甲砜霉素（TAP）。通过一系列的形貌学表征,元素价态分析,电化学方法对材料的结构,构成及性能进行了分析。同时引入密度泛函理论（DFT）对分子结构进行优化,同时对实验设计进行指导。结果表明,制备的BC/CoFe-CoFe₂O₄/MIP复合材料展现了优秀的空间结构和电子转移活性,修饰电极制备的生物传感器可以特异性的识别甲砜霉素。此外,分子模拟计算结果与实验结果呈现高度相关性,并成功应用于农畜产品中甲砜霉素的检测。更多还原

【Abstract】 Biomass derived carbon was used as matrix with highly efficient surface area and space structure to modify bimetallic and ferrite bimetallic nanoparticles.Then,imprinted polymer film was fabricated via electrochemical method on the surface of BC/CoFe-CoFe₂O₄/GCE for the specifical determination of anti-biological environmental pollutant thiamphenicol（TAP）.Various of morphological characterization,elemental valence analysis and electrochemical characterization were performed.Further,density functional theory（DFT） was introduced for molecular complex structure optimization and binding energy calculation to provided theoretical support for sensing system designment.Results shown that the prepared BC/CoFe-CoFe₂O₄/MIP/GCE sensor exhibited excellent electron transfer ability and can recognized TAP specifically.In addition,molecular simulation shown highly degree of relevance with laboratory results,and have been successfully applied into the determination of TAP in agricultural products.更多还原