{"title":"Responsive photoactive probe based photoelectrochemical sensor for sulfur dioxide","authors":"Yingying Zhang, Yuanqiang Hao, Ying Peng, Xiaobing Wang, Yanli Zhou, Shu Chen, Maotian Xu","doi":"10.1002/elan.202400041","DOIUrl":null,"url":null,"abstract":"<p>This study introduces a novel photoelectrochemical (PEC) sensor for the highly selective detection of sulfur dioxide (SO<sub>2</sub>) 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 TiO<sub>2</sub> substrate, a PEC sensor is constructed, exhibiting a significant photocurrent response under visible light excitation. The specific addition reaction between SO<sub>2</sub> and OPM disrupts its conjugated structure, reducing the photocurrent response and achieving highly selective detection of SO<sub>2</sub>. The sensor demonstrates excellent performance in real water samples, emphasizing its practical applications.</p>","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"36 10","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electroanalysis","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/elan.202400041","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
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.
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.
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