{"title":"Electrochemical Analysis of Methanol with Nafion-Coated Copper Oxide Nanoparticles.","authors":"Pantipa Sawatmuenwai, Keerakit Kaewket, Kamonwad Ngamchuea","doi":"10.1155/2024/1809578","DOIUrl":null,"url":null,"abstract":"<p><p>This work introduces a Nafion-coated copper(I) oxide nanoparticle electrode (Nafion/Cu<sub>2</sub>O/GC) designed for the electrochemical detection of methanol (CH<sub>3</sub>OH). The responses of the composite material toward CH<sub>3</sub>OH were enhanced by the selective permeation of CH<sub>3</sub>OH through the hydrophilic channels of the Nafion membrane in combination with the electroactivity of Cu<sub>2</sub>O nanoparticles. The sensor displayed a linear detection range of 0.33-100 mM CH<sub>3</sub>OH with a sensitivity of 0.17 <i>μ</i>A·mM<sup>-1</sup> and a detection limit (3 s/m) of 0.10 mM. It exhibited excellent reproducibility with a relative standard deviation of <5%. The sensor's practical applicability was demonstrated through recovery studies on hand sanitizer samples, achieving ca. 100% recovery. The sensor was further used to elucidate CH<sub>3</sub>OH adsorption on activated carbon, revealing that the process conforms to the Langmuir isotherm model.</p>","PeriodicalId":14974,"journal":{"name":"Journal of Analytical Methods in Chemistry","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11455596/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Analytical Methods in Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1155/2024/1809578","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
This work introduces a Nafion-coated copper(I) oxide nanoparticle electrode (Nafion/Cu2O/GC) designed for the electrochemical detection of methanol (CH3OH). The responses of the composite material toward CH3OH were enhanced by the selective permeation of CH3OH through the hydrophilic channels of the Nafion membrane in combination with the electroactivity of Cu2O nanoparticles. The sensor displayed a linear detection range of 0.33-100 mM CH3OH with a sensitivity of 0.17 μA·mM-1 and a detection limit (3 s/m) of 0.10 mM. It exhibited excellent reproducibility with a relative standard deviation of <5%. The sensor's practical applicability was demonstrated through recovery studies on hand sanitizer samples, achieving ca. 100% recovery. The sensor was further used to elucidate CH3OH adsorption on activated carbon, revealing that the process conforms to the Langmuir isotherm model.
期刊介绍:
Journal of Analytical Methods in Chemistry publishes papers reporting methods and instrumentation for chemical analysis, and their application to real-world problems. Articles may be either practical or theoretical.
Subject areas include (but are by no means limited to):
Separation
Spectroscopy
Mass spectrometry
Chromatography
Analytical Sample Preparation
Electrochemical analysis
Hyphenated techniques
Data processing
As well as original research, Journal of Analytical Methods in Chemistry also publishes focused review articles that examine the state of the art, identify emerging trends, and suggest future directions for developing fields.