第 51 卷第 5 期 Vol. 51 No. 5 2021 年 10 月 Oct 2021

所属栏目：功能材料 基于葡萄糖酸锌衍生碳源制备同时检测邻／对苯二酚的电化学传感器

王雪娇1，王小宇1，鲁猷栾1，2，刘耀鹏1，2，郑 寅1，2*，石 震1，黄文胜1，2 （1． 湖北民族大学 化学与环境工程学院，湖北 恩施 445000；2. 生物资源保护与利用湖北省重点实验室 湖北民族大学，湖北 恩施 445000）

摘　要：为实现邻苯二酚（HQ）和对苯二酚（CA）的快速、灵敏检测，以NaCl作为模板、葡萄糖酸锌（sodium gluconate）为碳源，通过溶解-重结晶制备碳前驱体，同时热解制备多孔碳材料（ZGDPC）并将其用于构建电化学传感器ZGDPC／GCE。使用扫描电子显微镜（SEM）、X射线粉末衍射（XRD）及比表面积分析仪分别对其形貌和结构进行了表征，然后通过差分脉冲伏安法（DPV）考察了ZGDPC／GCE表面HQ和CA的电化学行为。优化条件下，HQ 的线性检出范围为0~25 μmol／L，检出限为0.124 μmol／L，CA的线性检出范围为0~30 μmol／L，检出限为0.213 μmol／L。该传感器对实际水样中HQ和CA的回收率为95.6%~102.3%。以上结果表明，基于该电化学传感器能实现实际样品中对HQ和CA的同时检测。

关键词：电化学传感器；多孔碳材料；酚类物质

中图分类号：O657.1　　文献标识码：A　　文章编号：1009-9212（2021）05-0059-05

Carbon Derived from Zinc Gluconate Used in Electronic Sensor for Simultaneous Detection of Catechol and Hydroquinone

WANG Xue-jiao1, WANG Xiao-yu1, LU You-luan1,2, LIU Yao-peng1,2, ZHENG Yin1,2*, SHI Zhen1, HUANG Wen-sheng1,2 (1. Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Diseases, Hubei Minzu University, Enshi 445000, China; 2. College of Chemical and Environmental Engineering, Hubei Minzu University, Enshi 445000, China)

Abstract：In order to realize the rapid and sensitive detection of catechol (HQ) and hydroquinone (CA), NaCl was used as template and sodium gluconate was used as carbon source, the carbon precursor was prepared through a process including dissolving and recrystallization. Porous carbon material (ZGDPC) was prepared by pyrolysis of the above carbon precursor and used to construct electrochemical sensor ZGDPC/GCE. The morphology and structure of ZGDPC/GCE were characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and specific surface area analyzer, respectively. Then, the electrochemical behavior of HQ and CA on ZGDPC/GCE surface was investigated by differential pulse voltammetry (DPV). Under the optimal conditions, the linear detection range of HQ was 0~25 μmol/L with a detection limit of 0.124 μmol/L, and the linear detection range of CA was between 0 and 30 μmol/L with a detection limit of 0.213 μmol/L. In addition, the recovery rate of HQ and CA in actual water samples was between 95.7% and 102.3%. The above results showed that the electrochemical sensor could not only realize the simultaneous detection of HQ and CA, but also can be applied to actual sample analysis.

Key words：electrochemical sensor; porous carbon materials; phenolics

基金项目：国家自然科学基金项目（22066010），国家级大学生创新项目（202110517006），湖北省大学生创新项目（S202010517049）。

作者简介：王雪娇（2000—），女，湖北宜昌人，硕士研究生，研究方向：材料化学、电化学（E-mail：1908479672@qq.com）。

联 系 人：郑 寅，副教授，研究方向：材料化学、电化学（E-mail：zhengyin0617@163.com）。

收稿日期：2021-08-03