Responsive photoactive probe based photoelectrochemical sensor for sulfur dioxide

IF 2.7 3区化学 Q2 CHEMISTRY, ANALYTICAL

Electroanalysis Pub Date : 2024-04-16 DOI:10.1002/elan.202400041

Yingying Zhang, Yuanqiang Hao, Ying Peng, Xiaobing Wang, Yanli Zhou, Shu Chen, Maotian Xu

引用次数: 0

Abstract

This study introduces a novel photoelectrochemical (PEC) sensor for the highly selective detection of sulfur dioxide (SO₂) using an organic photoactive molecule probe (OPM). OPM is synthesized through a one-step coupling reaction, featuring a typical photosensitizer D-π-A structure. By covalently bonding OPM with a TiO₂ substrate, a PEC sensor is constructed, exhibiting a significant photocurrent response under visible light excitation. The specific addition reaction between SO₂ and OPM disrupts its conjugated structure, reducing the photocurrent response and achieving highly selective detection of SO₂. The sensor demonstrates excellent performance in real water samples, emphasizing its practical applications.

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基于响应性光活性探针的二氧化硫光电化学传感器

本研究介绍了一种新型光电化学（PEC）传感器，利用有机光活性分子探针（OPM）高选择性地检测二氧化硫（SO2）。OPM 通过一步偶联反应合成，具有典型的光敏剂 D-π-A 结构。通过共价键合 OPM 与 TiO 2基底，构建了一个 PEC 传感器，在可见光激发下表现出显著的光电流响应。SO 2和 OPM 之间的特定加成反应破坏了其共轭结构，降低了光电流响应，实现了对 SO 2的高选择性检测。该传感器在实际水样中表现出卓越的性能，突出了其实际应用价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electroanalysis 化学-电化学

CiteScore

6.00

自引率

3.30%

发文量

222

审稿时长

2.4 months

期刊介绍： Electroanalysis is an international, peer-reviewed journal covering all branches of electroanalytical chemistry, including both fundamental and application papers as well as reviews dealing with new electrochemical sensors and biosensors, nanobioelectronics devices, analytical voltammetry, potentiometry, new electrochemical detection schemes based on novel nanomaterials, fuel cells and biofuel cells, and important practical applications. Serving as a vital communication link between the research labs and the field, Electroanalysis helps you to quickly adapt the latest innovations into practical clinical, environmental, food analysis, industrial and energy-related applications. Electroanalysis provides the most comprehensive coverage of the field and is the number one source for information on electroanalytical chemistry, electrochemical sensors and biosensors and fuel/biofuel cells.