Electrochemical Analysis of Methanol with Nafion-Coated Copper Oxide Nanoparticles.

IF 2.3 3区 化学 Q3 CHEMISTRY, ANALYTICAL
Journal of Analytical Methods in Chemistry Pub Date : 2024-09-28 eCollection Date: 2024-01-01 DOI:10.1155/2024/1809578
Pantipa Sawatmuenwai, Keerakit Kaewket, Kamonwad Ngamchuea
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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.

使用 Nafion 涂层纳米氧化铜颗粒对甲醇进行电化学分析。
本研究介绍了一种 Nafion 涂层纳米氧化铜(I)粒子电极(Nafion/Cu2O/GC),设计用于甲醇(CH3OH)的电化学检测。由于 CH3OH 通过 Nafion 膜亲水通道的选择性渗透与 Cu2O 纳米粒子的电活性相结合,增强了复合材料对 CH3OH 的响应。该传感器的线性检测范围为 0.33-100 mM CH3OH,灵敏度为 0.17 μA-mM-1,检测限(3 s/m)为 0.10 mM。该方法的重现性极佳,3OH 在活性炭上的吸附量相对标准偏差很小,表明该过程符合 Langmuir 等温线模型。
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
Journal of Analytical Methods in Chemistry
Journal of Analytical Methods in Chemistry CHEMISTRY, ANALYTICAL-ENGINEERING, CIVIL
CiteScore
4.80
自引率
3.80%
发文量
79
审稿时长
6-12 weeks
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.
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