Preparation and Application of Phenol Electrochemical Sensor Based on Molecularly Imprinted Polymer

HU Wen-ying; LIU Tao; WU Qiang-qiang

doi:10.14028/j.cnki.1003-3726.2022.12.015

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Preparation and Application of Phenol Electrochemical Sensor Based on Molecularly Imprinted Polymer

更新时间：2022-10-17

- Preparation and Application of Phenol Electrochemical Sensor Based on Molecularly Imprinted Polymer
- Polymer Bulletin Vol. 35, Issue 12, Pages: 129-137(2022)
- 作者机构：
  
  莆田学院环境与生物工程学院，福建省新型污染物生态毒理效应与控制重点实验室，生态环境及其信息图谱福建省高等学校重点实验室，莆田　351100
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2022.12.015
  CLC：
- Published：20 December 2022，
  
  Received：02 November 2021，
  
  Revised：16 March 2022，
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HU Wen-ying, LIU Tao, WU Qiang-qiang. Preparation and Application of Phenol Electrochemical Sensor Based on Molecularly Imprinted Polymer. [J]. Polymer Bulletin 35(12):129-137(2022)
DOI：

HU Wen-ying, LIU Tao, WU Qiang-qiang. Preparation and Application of Phenol Electrochemical Sensor Based on Molecularly Imprinted Polymer. [J]. Polymer Bulletin 35(12):129-137(2022) DOI： 10.14028/j.cnki.1003-3726.2022.12.015.

摘要

以苯酚为模板分子

丙烯酰胺作为功能单体

甲基丙烯酰胺为交联剂

偶氮二异丁腈为引发剂

采取溶液聚合法制备苯酚分子印迹聚合物。再借助自组装技术

利用壳聚糖的增敏作用加强聚合物在金电极上的吸附过程

制备苯酚分子印迹电化学传感器。扫描电镜形貌表征显示印迹聚合物表面呈现许多沟壑状与较多的印迹空隙。循环伏安(CV)和交流阻抗表征验证了苯酚分子印迹电化学传感器的成功制备。通过优化实验条件

当洗脱时间为20 min时

印迹传感器峰电流最大。苯酚浓度在6.7×10

-6

~24.6×10

-6

mg/L 的范围内与峰电流有良好的线性关系

其检出限为3.55×10

-9

mg/L。将制得的传感器测定水样中苯酚含量

收效显著。

Abstract

With phenol as the target molecule

acrylamide as functional monomer

methyl acrylamide as cross-linking agent and azobiisobutyronitrile as initiator

the phenol molecular imprinted polymers were prepared by solution polymerization. Based on self-assembly technology

the adsorption process of polymers on the gold electrode was enhanced by the sensitization of chitosan to prepare phenol molecular blot electrochemical sensors. Scanning electron microscopy results showed the surface of imprinted polymer presented many grooves and many voids. The successful preparation of electrochemical sensor was verified by cyclic voltammetry (CV)and AC impedance (alternating cuncent impedance). By optimizing the experimental conditions

the peak current time was best when the time was 20min. Phenol concentration had a good linear relationship with peak current within the range 6.7×10

-6

~24.6×10

-6

mg/L

and its detection limit was 3.55×10

-9

mg/L. The prepared sensor was used to test the water sample to determine the phenol content

and the effect was remarkable.

关键词

苯酚电化学传感器分子印迹溶液聚合

Keywords

PhenolElectrochemical sensorMolecularly imprintedSolution polymerization

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