Hg2+ determination by DPASV by using poly (methylene disulfide)/Au nanoparticle/MWCNT modified glassy carbon electrode by differential pulse anodic stripping voltammetry (DPASV) technique

IF 2.5 4区材料科学 Q2 CHEMISTRY, APPLIED Journal of Porous Materials Pub Date : 2023-09-01 DOI:10.1007/s10934-023-01510-7

Seyedeh Mina Ghalebi, Hooshang Parham, Abbas Shirmardi

{"title":"Hg2+ determination by DPASV by using poly (methylene disulfide)/Au nanoparticle/MWCNT modified glassy carbon electrode by differential pulse anodic stripping voltammetry (DPASV) technique","authors":"Seyedeh Mina Ghalebi, Hooshang Parham, Abbas Shirmardi","doi":"10.1007/s10934-023-01510-7","DOIUrl":null,"url":null,"abstract":"<div>In the present work, a glassy carbon electrode (GCE) was surface modified by a poly (methylene disulfide)/Au–nanoparticles/multiwall carbon nanotubes (PMDS/AuNPs/MWCNT) to improve its ability to detect of trace mercury cations in polluted water. The produced electrode was characterized with FE-SEM, HR-TEM, AFM, XRD, and FT-IR techniques. The obtained results proved the success of the modification process and revealed that the process had a significant effect on the morphology of the electrode and its surface roughness. EIS analysis demonstrated the improvement of the electrochemical properties of the surface-modified sample. Accordingly, the obtained charge transfer resistance (Rct) decreased from 477.1 Ohm cm2 for the unmodified GCE to 83.4 Ohm cm2 for the modified-GCE. The designed modified electrode was used as an ultra-sensitive electrode for determining the concentration of Hg2+ cation using the differential pulse anodic stripping voltammetry (DPASV) technique.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"31 1","pages":"251 - 266"},"PeriodicalIF":2.5000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Porous Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10934-023-01510-7","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

In the present work, a glassy carbon electrode (GCE) was surface modified by a poly (methylene disulfide)/Au–nanoparticles/multiwall carbon nanotubes (PMDS/AuNPs/MWCNT) to improve its ability to detect of trace mercury cations in polluted water. The produced electrode was characterized with FE-SEM, HR-TEM, AFM, XRD, and FT-IR techniques. The obtained results proved the success of the modification process and revealed that the process had a significant effect on the morphology of the electrode and its surface roughness. EIS analysis demonstrated the improvement of the electrochemical properties of the surface-modified sample. Accordingly, the obtained charge transfer resistance (R_ct) decreased from 477.1 Ohm cm² for the unmodified GCE to 83.4 Ohm cm² for the modified-GCE. The designed modified electrode was used as an ultra-sensitive electrode for determining the concentration of Hg²⁺ cation using the differential pulse anodic stripping voltammetry (DPASV) technique.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

差示脉冲阳极溶出伏安法测定Hg2+

本研究采用聚二硫化钼/金纳米颗粒/多壁碳纳米管（PMDS/AuNPs/MWCNT）对玻璃碳电极（GCE）进行表面修饰，以提高其检测污染水中痕量汞阳离子的能力。利用 FE-SEM、HR-TEM、AFM、XRD 和 FT-IR 技术对制备的电极进行了表征。所得结果证明了改性工艺的成功，并表明改性工艺对电极的形态和表面粗糙度有显著影响。EIS 分析表明，表面改性样品的电化学性能得到了改善。因此，获得的电荷转移电阻（Rct）从未修改 GCE 的 477.1 欧姆/平方厘米下降到修饰 GCE 的 83.4 欧姆/平方厘米。所设计的改性电极被用作超灵敏电极，利用差分脉冲阳极剥离伏安法（DPASV）技术测定 Hg2+ 阳离子的浓度。

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分钟内获得全文去求助

来源期刊

Journal of Porous Materials 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.70%

发文量

203

审稿时长

2.6 months

期刊介绍： The Journal of Porous Materials is an interdisciplinary and international periodical devoted to all types of porous materials. Its aim is the rapid publication of high quality, peer-reviewed papers focused on the synthesis, processing, characterization and property evaluation of all porous materials. The objective is to establish a unique journal that will serve as a principal means of communication for the growing interdisciplinary field of porous materials. Porous materials include microporous materials with 50 nm pores. Examples of microporous materials are natural and synthetic molecular sieves, cationic and anionic clays, pillared clays, tobermorites, pillared Zr and Ti phosphates, spherosilicates, carbons, porous polymers, xerogels, etc. Mesoporous materials include synthetic molecular sieves, xerogels, aerogels, glasses, glass ceramics, porous polymers, etc.; while macroporous materials include ceramics, glass ceramics, porous polymers, aerogels, cement, etc. The porous materials can be crystalline, semicrystalline or noncrystalline, or combinations thereof. They can also be either organic, inorganic, or their composites. The overall objective of the journal is the establishment of one main forum covering the basic and applied aspects of all porous materials.