应用化学2018，Vol.35Issue(4)：484-490,7.DOI:10.11944/j.issn.1000-0518.2018.04.170107
基于纳米金增敏的双酚A二氧化钛凝胶分子印迹电化学传感器的制备及应用
Preparation and Application of Bisphenol-A TiO2Gel Molecularly Imprinted Electrochemical Sensor Based on the Sensitivity-Enhancement of Gold Nanoparticles
摘要
Abstract
A bisphenol-A(BPA)TiO2gel molecularly imprinted electrochemical sensor was fabricated using gold nanoparticles(AuNPs)as sensitivity-enhanced materials based on surface sol-gel and self-assembly methods.AuNPs were characterized by scanning electron microscopy(SEM)and energy dispersive spectroscopy. BPA, TiO2gel, and BPA-imprinted TiO2gel were characterized by Fourier transform infrared(FTIR) spectrometry.Under optimal conditions, the sensor exhibits a good linear response from 1.0 ×10 -8to 1.0×10 -5mol/L for bisphenol A, with correlation coefficient 0.995 and a low detection limit of 0.6×10 -8mol/L(S/N=3).The prepared sensor was successfully applied in the detection of actual sample with 97.4%~103%recoveries.关键词
纳米金/双酚A/TiO2/溶胶凝胶法/自组装法/分子印迹传感器Key words
gold nanoparticles/bisphenol A/TiO2/sol-gel method/self-assembly method/molecularly imprinted sensor分类
化学化工引用本文复制引用
李玲玲,杨绍明,丁绍卿,尚培玲,杨杰,曹嫱,查文玲..基于纳米金增敏的双酚A二氧化钛凝胶分子印迹电化学传感器的制备及应用[J].应用化学,2018,35(4):484-490,7.基金项目
国家自然科学基金资助项目(21465012)、江西省自然科学基金项目(20171BAB203017)、江西省教育厅科技项目(GJJ150544)和华东交通大学校立项目(15LX03) Supported by the National Natural Science Foundation of China(No.21465012),Natural Science Foundation of Jiangxi Province of China(No.20171BAB203017),Scientific Research Fund of Jiangxi Provincial Education Department(No.GJJ150544),Scientific Research Project of East China Jiaotong University(No.15LX03) （21465012）
