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

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	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
刊名	ACS APPLIED MATERIALS & INTERFACES
	2013-01-23
卷号	5 期号:2 页码:284-290
关键词	Mercury Ions Calorimetric Detection Silver Nanoprism Morphology Transition
ISSN号	1944-8244
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. lxchen@yic.ac.cn
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
文献子类	Article
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%.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
URL标识	查看原文
WOS关键词	FUNCTIONALIZED GOLD NANOPARTICLES ; SURFACE-PLASMON RESONANCE ; AQUEOUS-MEDIA ; DIELECTRIC ENVIRONMENT ; METAL NANOPARTICLES ; MERCURY(II) IONS ; COLLOIDAL SILVER ; FLOW-INJECTION ; COPPER IONS ; SPECTROMETRY
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
WOS记录号	WOS:000314143500010
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
公开日期	2013-08-15
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/6621]
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
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.