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  3. 中国科学院烟台海岸带研究所
  4. 中科院海岸带环境过程与生态修复重点实验室
A honeycomb-like micro-needle sensor with gold nanoparticles embedded for the determination of hexavalent chromium in seawater

文献类型：期刊论文

作者Li, Ying4,5; Han, Haitao4; Fei, Yinghong2,3; Pan, Dawei1,4; Wang, Haizeng5
刊名MICROCHEMICAL JOURNAL
出版日期2024-02-01
卷号197页码:6
关键词Hexavalent chromium Micro -needle electrode Honeycomb -like structure Gold nanoparticles Seawater
ISSN号0026-265X
DOI10.1016/j.microc.2023.109857
通讯作者Han, Haitao(hthan@yic.ac.cn) ; Wang, Haizeng(haizwang@ouc.edu.cn)
英文摘要As one of the most toxic heavy metals, hexavalent chromium (Cr(VI)) is a typical environmental pollutant that directly affects human health. In this work, a novel micro-needle sensor with honeycomb-like structure and embedded gold nanoparticles was proposed for the stable and sensitive determination of Cr(VI). The honeycomblike structure provided larger specific surface area to support more gold nanoparticles which exhibited excellent catalytic activity towards the electrochemical reduction of Cr(VI) to Cr(III). In addition, gold nanoparticles were embedded into the holes of the honeycomb-like structure, which can effectively prevent them from falling off from the electrode surface due to the protection of the holes. Combining the honeycomb-like structure of microneedle electrode with the excellent catalytic activity of gold nanoparticles, the fabricated sensor exhibited outstanding stability and sensitivity for the cathodic stripping determination of Cr(VI). A linear range of Cr(VI) from 0.5 to 300 mu mol/L was obtained, with the detection limit of 0.15 mu mol/L. The recovery of the sensor for the determination of hexavalent chromium in seawater samples was also investigated. Moreover, the sensor might be further adapted for the determination of other heavy metals with different nanoparticles embedded.
WOS关键词ELECTROCHEMICAL DETECTION ; WATER ; ELECTRODE ; VI ; SPECIATION
WOS研究方向Chemistry
语种英语
WOS记录号WOS:001152427500001
资助机构Fundamental Research Funds for the Central Public-interest Scientific Institution
源URL[http://ir.yic.ac.cn/handle/133337/36384]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_山东省海岸带环境工程技术研究中心
通讯作者Han, Haitao; Wang, Haizeng
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Shandong Saline Alkali Land Modern Agr Co, Dongying 257347, Peoples R China
3.Yantai Univ, Sch Civil Engn, Yantai 264005, Peoples R China
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn Technol Shandong Pro, Key Lab Coastal Environm Proc & Ecol Remediat,Shan, Yantai 264003, Peoples R China
5.Ocean Univ China, Coll Chem & Chem Engn, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China
推荐引用方式
GB/T 7714		 Li, Ying,Han, Haitao,Fei, Yinghong,et al. A honeycomb-like micro-needle sensor with gold nanoparticles embedded for the determination of hexavalent chromium in seawater[J]. MICROCHEMICAL JOURNAL,2024,197:6.
APA Li, Ying,Han, Haitao,Fei, Yinghong,Pan, Dawei,&Wang, Haizeng.(2024).A honeycomb-like micro-needle sensor with gold nanoparticles embedded for the determination of hexavalent chromium in seawater.MICROCHEMICAL JOURNAL,197,6.
MLA Li, Ying,et al."A honeycomb-like micro-needle sensor with gold nanoparticles embedded for the determination of hexavalent chromium in seawater".MICROCHEMICAL JOURNAL 197(2024):6.

入库方式： OAI收割

来源：烟台海岸带研究所

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