Citation: LI Lingling, YANG Shaoming, DING Shaoqing, SHANG Peiling, YANG Jie, CAO Qiang, ZHA Wenling. Preparation and Application of Bisphenol-A TiO₂ Gel Molecularly Imprinted Electrochemical Sensor Based on the Sensitivity-Enhancement of Gold Nanoparticles[J]. Chinese Journal of Applied Chemistry, ;2018, 35(4): 484-490. doi: 10.11944/j.issn.1000-0518.2018.04.170107 shu

Preparation and Application of Bisphenol-A TiO₂ Gel Molecularly Imprinted Electrochemical Sensor Based on the Sensitivity-Enhancement of Gold Nanoparticles

School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China

Corresponding author: YANG Shaoming, yangsm79@163.com
Received Date: 12 April 2017
Revised Date: 15 May 2017
Accepted Date: 23 June 2017

Fund Project: Scientific Research Fund of Jiangxi Provincial Education Department GJJ150544the National Natural Science Foundation of China 21465012Scientific Research Project of East China Jiaotong University 15LX03Supported 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)Natural Science Foundation of Jiangxi Province of China 20171BAB203017

Figures(9)

A bisphenol-A(BPA) TiO₂ gel 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, TiO₂ gel, and BPA-imprinted TiO₂ gel were characterized by Fourier transform infrared(FTIR) spectrometry. Under optimal conditions, the sensor exhibits a good linear response from 1.0×10^-8 to 1.0×10^-5 mol/L for bisphenol A, with correlation coefficient 0.995 and a low detection limit of 0.6×10^-8 mol/L(S/N=3). The prepared sensor was successfully applied in the detection of actual sample with 97.4%~103% recoveries.
- gold nanoparticles,
- bisphenol A,
- TiO₂,
- sol-gel method,
- self-assembly method,
- molecularly imprinted sensor
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Preparation and Application of Bisphenol-A TiO2 Gel Molecularly Imprinted Electrochemical Sensor Based on the Sensitivity-Enhancement of Gold Nanoparticles

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通讯作者: 陈斌, bchen63@163.com

Preparation and Application of Bisphenol-A TiO₂ Gel Molecularly Imprinted Electrochemical Sensor Based on the Sensitivity-Enhancement of Gold Nanoparticles