Highly Sensitive and Selective Colorimetric Sensing of Hg2+ Based on the Morphology Transition of Silver Nanoprisms

	Highly Sensitive and Selective Colorimetric Sensing of Hg2+ Based on the Morphology Transition of Silver Nanoprisms
	Chen, Ling 1,2; Fu, Xiuli 1,2; Lu, Wenhui 1; Chen, Lingxin1
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
	2013-01-23
卷号	5 期号:2 页码:284-290
关键词	Mercury Ions Calorimetric Detection Silver Nanoprism Morphology Transition
产权排序	[Chen, Ling; Fu, Xiuli; Lu, Wenhui; Chen, Lingxin] Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Chen, Ling; Fu, Xiuli] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
通讯作者	Chen, LX (reprint author), Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China. [email protected]
作者部门	中科院海岸带环境过程与生态修复重点实验室
英文摘要	A simple colorimetric approach for mercury ion (Hg2+) sensing was developed that was based on the Hg2+. induced deprotection and morphology transition of 1-dodecanethiol (C12H25SH)-capped silver nanoprisms (Ag NPRs) upon the presence of iodides at room temperature. The abstraction of C12H25SH from the surface of Ag NPRs by Hg2+ led to their deprotection of Ag NPRs and the formation of complexation between silver ions and excess iodide ions. Also, the silver atoms were consumed and moved from the surface of Ag NPRs, accompanying the changes in the particle morphology that resulted in a change of color and UV-vis absorption spectra of the colloidal solution. With increasing concentrations of Hg2+ from 10 to 500 nM, the surface plasma resonance spectral band of Ag NPRs emerged as a blue shift and exhibited a good linear relationship, and the limit of detection was 3.3 nM. Furthermore, the developed method was applied for detecting Hg2+ in different real water samples with satisfying recoveries over 92%.; A simple colorimetric approach for mercury ion (Hg2+) sensing was developed that was based on the Hg2+. induced deprotection and morphology transition of 1-dodecanethiol (C12H25SH)-capped silver nanoprisms (Ag NPRs) upon the presence of iodides at room temperature. The abstraction of C12H25SH from the surface of Ag NPRs by Hg2+ led to their deprotection of Ag NPRs and the formation of complexation between silver ions and excess iodide ions. Also, the silver atoms were consumed and moved from the surface of Ag NPRs, accompanying the changes in the particle morphology that resulted in a change of color and UV-vis absorption spectra of the colloidal solution. With increasing concentrations of Hg2+ from 10 to 500 nM, the surface plasma resonance spectral band of Ag NPRs emerged as a blue shift and exhibited a good linear relationship, and the limit of detection was 3.3 nM. Furthermore, the developed method was applied for detecting Hg2+ in different real water samples with satisfying recoveries over 92%.
文章类型	Article
资助机构	Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry; National Natural Science Foundation of China [21275158]; Innovation Projects of the Chinese Academy of Sciences [KZCX2-EW-206]; 100 Talents Program of the Chinese Academy of Sciences
收录类别	SCI
语种	英语
关键词[WOS]	FUNCTIONALIZED GOLD NANOPARTICLES ; SURFACE-PLASMON RESONANCE ; AQUEOUS-MEDIA ; DIELECTRIC ENVIRONMENT ; METAL NANOPARTICLES ; MERCURY(II) IONS ; COLLOIDAL SILVER ; FLOW-INJECTION ; COPPER IONS ; SPECTROMETRY
研究领域[WOS]	Science & Technology - Other Topics ; Materials Science
WOS记录号	WOS:000314143500010
引用统计	被引频次：209[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/133337/6620
专题	中国科学院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chen, Ling,Fu, Xiuli,Lu, Wenhui,et al. Highly Sensitive and Selective Colorimetric Sensing of Hg2+ Based on the Morphology Transition of Silver Nanoprisms[J]. ACS APPLIED MATERIALS & INTERFACES,2013,5(2):284-290.
APA	Chen, Ling,Fu, Xiuli,Lu, Wenhui,&Chen, Lingxin.(2013).Highly Sensitive and Selective Colorimetric Sensing of Hg2+ Based on the Morphology Transition of Silver Nanoprisms.ACS APPLIED MATERIALS & INTERFACES,5(2),284-290.
MLA	Chen, Ling,et al."Highly Sensitive and Selective Colorimetric Sensing of Hg2+ Based on the Morphology Transition of Silver Nanoprisms".ACS APPLIED MATERIALS & INTERFACES 5.2(2013):284-290.

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