A self-powered cathodic molecular imprinting ultrasensitive photoelectrochemical tetracycline sensor via ZnO/C photoanode signal amplification  

作　　者：Qinghong Pan Huafang Zhang Qiaoling Liu Donghong Huang Da-Peng Yang Tianjia Jiang Shuyang Sun Xiangrong Chen 

机构地区：[1]Key Laboratory of Chemical Materials and Green Nanotechnology,College of Chemical Engineering and Materials Science,Quanzhou Normal University,Quanzhou 362000,China [2]Department of Neurosurgery,the Second Affiliated Hospital of Fujian Medical University,Quanzhou 362000,China [3]School of Rehabilitation Science and Engineering,University of Health and Rehabilitation Sciences,Qingdao 266024,China [4]College of Food Engineering,Ludong University,Yantai 264025,China

出　　处：《Chinese Chemical Letters》2025年第1期539-544,共6页中国化学快报(英文版)

基　　金：supported by the Fuxiaquan Collaborative Innovation Platform(No.K30001);Major Scientific Research Program for Young and Middle-aged Health Professionals of Fujian Province,China(No.2022ZQNZD007);Youth Innovation Technology Project of Higher School in Shandong Province(Food Nanotechnology Innovation Team)。

摘　　要：Quantitative determination of tetracycline(TC)in environment and foods is of great importance,as excessive residues might have negative effects on human health and environmental risks.Herein,a selfpowered molecularly imprinted photoelectrochemical(PEC)sensor based on the Zn O/C photoanode and the Fe-doped CuBi_(2)O_(4)(CBFO)photocathode is developed for the sensitive detection of TC.The photocathodic current can be amplified by the efficient electron transfer caused by the Fermi energy level gap between the photoanode and photocathode.Furthermore,molecularly imprinted polymers(MIPs)at photocathode can selectivity identify the TC templates and thus improve the specificity.Under the optimal conditions,the sensor has a linear range of 10^(-2)-1.0×10^(5) nmol/L,and a limit of detection(LOD)of 0.007 nmol/L(S/N=3).More crucially,the milk sample detection is carried out using the as-prepared sensor,and the outcome is satisfactory.The research gives us a novel sensing platform for quick and accurate antibiotic(like TC)in environment and food monitoring.

关 键 词：Self-powered photoelectrochemical sensor Molecularly imprinted polymer Fe-doped CuBi_(2)O_(4) Tetracycline detection 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] O657.1[自动化与计算机技术—控制科学与工程]