“Turn-on” Fluorescence Detection of Lead Ions Based on Accelerated Leaching of Gold Nanoparticles on the Surface of Graphene
文献类型：期刊论文
| 作者 | Chen, ZP ; Feng, WW; Chen, LX
|
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2012-02 |
| 卷号 | 4期号:2页码:1080-1086 |
| 关键词 | lead ions fluorescence detection graphene gold nanoparticles leaching |
| ISSN号 | 1944-8244 |
| 通讯作者 | Chen, LX (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China. lxchen@yic.ac.cn |
| 中文摘要 | A novel, platform for effective "turn-on" fluorescence sensing of lead ions (Pb2+) in aqueous solution was developed based on gold nanoparticle (AuNP)-functionalized graphene. The AuNP-functionalized graphene exhibited minimal background fluorescence because of the extraordinarily high quenching ability of AuNPs. Interestingly, the AuNP-functionalized graphene underwent fluorescence restoration as well as significant enhancement upon adding Pb2+, which was attributed to the fact that Pb2+ could accelerate the leaching rate. of the AuNPs on graphene surfaces in the presence of both thiosulfate (S2O32-) and 2-mercaptoethanol (2 ME) Consequently, this could be utilized as the basis for selective defection of Pb2+. With the optimum conditions chosen the:relative fluorescence intensity showed good linearity versus logarithm concentration of Pb2+ in the range of 50-1000 nM (R = 0.9982), and a detection limit of 10 nM. High selectivity over common coexistent metal ions was also demonstrated: The practical application had been carried out for determination of Pb2+ in tap water and mineral water samples. The Pb2+-specific "turn-on" fluorescence sensor, based on Pb2+ accelerated leaching of AuNPs on the surface of graphene, provided new opportunities for highly sensitive and selective Pb2+ detection in aqueous media. |
| 学科主题 | Science & Technology - Other Topics; Materials Science |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China[20975089]; Chinese Academy of Sciences[KZCX2-EW-206]; Department of Science and Technology of Shandong Province[BS2009DX006]; Department of Science and Technology of Yantai City of China[2007156, 2011426] |
| 原文出处 | http://pubs.acs.org/journal/aamick |
| 语种 | 英语 |
| 公开日期 | 2012-06-13 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/5491]  |
| 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_近岸生态与环境实验室 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 | Chen, LX |
| 推荐引用方式 GB/T 7714 | Chen, ZP,Feng, WW,Chen, LX. “Turn-on” Fluorescence Detection of Lead Ions Based on Accelerated Leaching of Gold Nanoparticles on the Surface of Graphene[J]. ACS APPLIED MATERIALS & INTERFACES,2012,4(2):1080-1086. |
| APA | Chen, ZP,Feng, WW,&Chen, LX.(2012).“Turn-on” Fluorescence Detection of Lead Ions Based on Accelerated Leaching of Gold Nanoparticles on the Surface of Graphene.ACS APPLIED MATERIALS & INTERFACES,4(2),1080-1086. |
| MLA | Chen, ZP,et al."“Turn-on” Fluorescence Detection of Lead Ions Based on Accelerated Leaching of Gold Nanoparticles on the Surface of Graphene".ACS APPLIED MATERIALS & INTERFACES 4.2(2012):1080-1086. |
入库方式： OAI收割
来源：烟台海岸带研究所
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