Yongyi Xiao, Zuhang Ding, Xu Chai, Qinran Li, Jing Jin, Yanjun Yu and Jin Zhao
{"title":"A green electrochemical sensor for p-nitrophenol based on a reduced graphene oxide/β-cyclodextrin/gold nanoparticle/polyoxometalate nanohybrid†","authors":"Yongyi Xiao, Zuhang Ding, Xu Chai, Qinran Li, Jing Jin, Yanjun Yu and Jin Zhao","doi":"10.1039/D5NJ02299A","DOIUrl":null,"url":null,"abstract":"<p >This study presents the development of a novel and green electrochemical sensor based on a reduced graphene oxide/β-cyclodextrin/gold nanoparticle/polyoxometalate (RGO-CD-AuNP-POM) nanohybrid for the detection of <em>p</em>-nitrophenol (<em>p</em>-NP). The sensor leverages the synergistic effects of these components to enhance sensitivity and selectivity. The electrochemical measurement results showed a detection limit of 73.6 nM and a linear range from 0.1 to 500 μM for <em>p</em>-NP using the proposed electrode. In addition, the sensor demonstrated excellent reproducibility, stability and anti-interference in multiple measurements, and it was successfully applied to detect <em>p</em>-NP in real water samples with 92.86–116.00% recovery. This study highlights the potential of the proposed sensor for rapid and sensitive detection of nitrophenol compounds in environmental monitoring.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 34","pages":" 14739-14747"},"PeriodicalIF":2.5000,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Journal of Chemistry","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2025/nj/d5nj02299a","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This study presents the development of a novel and green electrochemical sensor based on a reduced graphene oxide/β-cyclodextrin/gold nanoparticle/polyoxometalate (RGO-CD-AuNP-POM) nanohybrid for the detection of p-nitrophenol (p-NP). The sensor leverages the synergistic effects of these components to enhance sensitivity and selectivity. The electrochemical measurement results showed a detection limit of 73.6 nM and a linear range from 0.1 to 500 μM for p-NP using the proposed electrode. In addition, the sensor demonstrated excellent reproducibility, stability and anti-interference in multiple measurements, and it was successfully applied to detect p-NP in real water samples with 92.86–116.00% recovery. This study highlights the potential of the proposed sensor for rapid and sensitive detection of nitrophenol compounds in environmental monitoring.