Ag-modified La-succinate composite as a novel electrochemical sensor for Hg2+ ion detection

IF 2.6 4区化学 Q3 ELECTROCHEMISTRY

Journal of Solid State Electrochemistry Pub Date : 2025-04-03 DOI:10.1007/s10008-025-06258-5

Nana N. Shejwal, Shubham S. Patil, Himanshu R. Lanke, Ramesh B. Kamble, Pritesh V. Gole, Mahendra D. Shirsat

{"title":"Ag-modified La-succinate composite as a novel electrochemical sensor for Hg2+ ion detection","authors":"Nana N. Shejwal, Shubham S. Patil, Himanshu R. Lanke, Ramesh B. Kamble, Pritesh V. Gole, Mahendra D. Shirsat","doi":"10.1007/s10008-025-06258-5","DOIUrl":null,"url":null,"abstract":"<div><p>In this work, pristine and Ag-modified lanthanum succinate polymeric composites were prepared as selective electrochemical sensors for the monitoring of mercury (Hg<sup>2+</sup>) in aqueous media. Furthermore, Ag-modified La-succinate sensor effectively distinguished Hg<sup>2+</sup> ions from potentially disruptive metal species. It has <i>R</i><sup>2</sup> = 0.995 and a Freundlich adsorption capacity of 2.3 mg/g. The measurements of electrochemical impedance were also employed to evaluate resistance due to charge transfer. The sensitivity of the sensor is optimized for the lowest concentration of Hg<sup>2+</sup> ions in the aqueous media with limit of detection (LOD) of 0.1 nM. The reported LOD for Hg<sup>2+</sup> ions is well below the prescribed limit for the drinking water as per the World Health Organization. The reliability of this sensor was confirmed by evaluating its sensitivity (4.4 μAM⁻<sup>1</sup>) and its selectivity for Hg<sup>2+</sup> ions. In addition to this, the sensor has very good electrochemical stability and repeatability for the repeated exposures of the same concentration of Hg<sup>2+</sup> ions. These notable parameters of Ag-modified La-succinate electrochemical sensor show its potential for detecting hazardous Hg<sup>2+</sup> ions.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 9","pages":"4015 - 4026"},"PeriodicalIF":2.6000,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solid State Electrochemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10008-025-06258-5","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}

引用次数: 0

Abstract

In this work, pristine and Ag-modified lanthanum succinate polymeric composites were prepared as selective electrochemical sensors for the monitoring of mercury (Hg²⁺) in aqueous media. Furthermore, Ag-modified La-succinate sensor effectively distinguished Hg²⁺ ions from potentially disruptive metal species. It has R² = 0.995 and a Freundlich adsorption capacity of 2.3 mg/g. The measurements of electrochemical impedance were also employed to evaluate resistance due to charge transfer. The sensitivity of the sensor is optimized for the lowest concentration of Hg²⁺ ions in the aqueous media with limit of detection (LOD) of 0.1 nM. The reported LOD for Hg²⁺ ions is well below the prescribed limit for the drinking water as per the World Health Organization. The reliability of this sensor was confirmed by evaluating its sensitivity (4.4 μAM⁻¹) and its selectivity for Hg²⁺ ions. In addition to this, the sensor has very good electrochemical stability and repeatability for the repeated exposures of the same concentration of Hg²⁺ ions. These notable parameters of Ag-modified La-succinate electrochemical sensor show its potential for detecting hazardous Hg²⁺ ions.

Graphical Abstract

Abstract Image

查看原文本刊更多论文

银修饰的琥珀酸钠复合材料作为一种新型的Hg2+离子检测电化学传感器

在这项工作中，制备了原始和ag修饰的琥珀酸镧聚合物复合材料作为选择性电化学传感器，用于监测水介质中的汞（Hg2+）。此外，ag修饰的la -琥珀酸盐传感器可以有效区分Hg2+离子和潜在的破坏性金属。R2 = 0.995， Freundlich吸附量为2.3 mg/g。电化学阻抗的测量也被用来评估由于电荷转移引起的电阻。该传感器对水介质中最低浓度的Hg2+离子具有最佳的灵敏度，检测限为0.1 nM。报告的Hg2+离子下限远低于世界卫生组织规定的饮用水限值。该传感器的灵敏度（4.4 μAM⁻1）和对Hg2+离子的选择性证实了该传感器的可靠性。此外，对于相同浓度的Hg2+离子的反复暴露，该传感器具有非常好的电化学稳定性和重复性。这些显著的参数表明银修饰的琥珀酸钠电化学传感器具有检测有害Hg2+离子的潜力。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Solid State Electrochemistry 工程技术-电化学

CiteScore

4.80

自引率

4.00%

发文量

227

审稿时长

4.1 months

期刊介绍： The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry. The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces. The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis. The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.