A honeycomb-like micro-needle sensor with gold nanoparticles embedded for the determination of hexavalent chromium in seawater

doi:10.1016/j.microc.2023.109857

YIC-IR

	A honeycomb-like micro-needle sensor with gold nanoparticles embedded for the determination of hexavalent chromium in seawater
	Li, Ying 1,2; Han, Haitao2 ; Fei, Yinghong 3,4; Pan, Dawei2,5 ; Wang, Haizeng 1
发表期刊	MICROCHEMICAL JOURNAL
ISSN	0026-265X
	2024-02-01
卷号	197 页码:6
关键词	Hexavalent chromium Micro -needle electrode Honeycomb -like structure Gold nanoparticles Seawater
DOI	10.1016/j.microc.2023.109857
通讯作者	Han, Haitao([email protected]) ; Wang, Haizeng([email protected])
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.
资助机构	Fundamental Research Funds for the Central Public-interest Scientific Institution
收录类别	SCI
语种	英语
关键词[WOS]	ELECTROCHEMICAL DETECTION ; WATER ; ELECTRODE ; VI ; SPECIATION
研究领域[WOS]	Chemistry
WOS记录号	WOS:001152427500001
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/34846
专题	中国科学院烟台海岸带研究所
通讯作者	Han, Haitao; Wang, Haizeng
作者单位	1.Ocean Univ China, Coll Chem & Chem Engn, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China 2.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 3.Yantai Univ, Sch Civil Engn, Yantai 264005, Peoples R China 4.Shandong Saline Alkali Land Modern Agr Co, Dongying 257347, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, 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.