{"title":"Ultrasensitive voltammetric sensor based on ferrocenium tetrachloroferrate for determination of manganese(II) in water pollutant","authors":"Alwi Nofriandi , Yulkifli , Illyas Md Isa , Norhayati Hashim , Mohamad Idris Saidin , Mohamad Syahrizal Ahmad , Indang Dewata , Yohandri , Mawardi , Alizar , Ratno Nuryadi","doi":"10.1016/j.matchemphys.2025.130725","DOIUrl":null,"url":null,"abstract":"<div><div>This study presents the development and characterization of a multi-walled carbon nanotubes (MWCNTs)-based paste electrode modified with ferrocenium tetrachloroferrate (FTCF) for detecting of manganese(II) ions, Mn(II) in environmental applications. The modified material was characterized using Fourier transform infrared spectroscopy, X-ray diffraction, and field emission scanning electron microscopy. Electrochemical performance was evaluated through cyclic voltammetry, electrochemical impedance spectroscopy, and chronocoulometry. Square wave voltammetry was employed for quantitative detection of Mn(II). The MWCNTs/FTCF electrode demonstrated a linear detection range from 1.0 nM to 0.1 μM and 1.0 μM to 0.1 mM, with correlation coefficients (R<sup>2</sup>) of 0.9865 and 0.9762, respectively, and a detection limit of 0.275 nM. Interference study towards 11 competing ions, each at 10 folds concentration of Mn(II) shown an interference levels below 15 %, indicating a good selectivity. Additionally, the electrode exhibited excellent stability and reproducibility. The proposed electrode has been applied to determine Mn(II) in real water samples and the results shown that recovery values from 93 % to 113 %. Hence, it was suggested as alternative tool for the analysis of Mn(II) in environmental study.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130725"},"PeriodicalIF":4.3000,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Chemistry and Physics","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0254058425003712","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This study presents the development and characterization of a multi-walled carbon nanotubes (MWCNTs)-based paste electrode modified with ferrocenium tetrachloroferrate (FTCF) for detecting of manganese(II) ions, Mn(II) in environmental applications. The modified material was characterized using Fourier transform infrared spectroscopy, X-ray diffraction, and field emission scanning electron microscopy. Electrochemical performance was evaluated through cyclic voltammetry, electrochemical impedance spectroscopy, and chronocoulometry. Square wave voltammetry was employed for quantitative detection of Mn(II). The MWCNTs/FTCF electrode demonstrated a linear detection range from 1.0 nM to 0.1 μM and 1.0 μM to 0.1 mM, with correlation coefficients (R2) of 0.9865 and 0.9762, respectively, and a detection limit of 0.275 nM. Interference study towards 11 competing ions, each at 10 folds concentration of Mn(II) shown an interference levels below 15 %, indicating a good selectivity. Additionally, the electrode exhibited excellent stability and reproducibility. The proposed electrode has been applied to determine Mn(II) in real water samples and the results shown that recovery values from 93 % to 113 %. Hence, it was suggested as alternative tool for the analysis of Mn(II) in environmental study.
期刊介绍:
Materials Chemistry and Physics is devoted to short communications, full-length research papers and feature articles on interrelationships among structure, properties, processing and performance of materials. The Editors welcome manuscripts on thin films, surface and interface science, materials degradation and reliability, metallurgy, semiconductors and optoelectronic materials, fine ceramics, magnetics, superconductors, specialty polymers, nano-materials and composite materials.