中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
  4. 中科院合肥智能机械研究所
Adsorbent Assisted in Situ Electrocatalysis: An Ultra-Sensitive Detection of As(III) in Water at Fe3O4 Nanosphere Densely Decorated with Au Nanoparticles

文献类型：期刊论文

作者Wei, Juan1,2; Li, Shan-Shan1,2; Guo, Zheng1; Chen, Xing1; Liu, Jin-Huai1; Huang, Xing-Jiu1,2
刊名ANALYTICAL CHEMISTRY
出版日期2016-01-19
卷号88期号:2页码:1154-1161
DOI10.1021/acs.analchem.5b02947
文献子类Article
英文摘要Most gold nanoparticle-based electrodes have been utilized for the analysis of highly toxic As(III), while nano-Fe3O4 materials are currently attracting considerable interest as an adsorbent for the removal of As(III). However, the combination of gold nanoparticles with Fe3O4 nanoadsorbents for stripping voltammetry is, to the best of our knowledge, unexplored. Here, a sensing interface for ultrasensitive detection of As(III) is designed and constructed by abundantly dispersing Au nanoparticles (Au NPs) on the surface of the Fe3O4 nanosphere. The Au@Fe3O4 nanospheres are covered by the room temperature ionic liquid (RTIL) and then modified on the screen-printed carbon electrode (SPCE). By combining the excellent catalytic properties of the Au nanoparticles (similar to 3-9 nm in diameter) with the good adsorption capacity of Fe3O4 nanospheres toward As(III), as well as the good conductivity of RTIL, the Au@Fe3O4-RTIL shows excellent performance in the detection of arsenic under nearly neutral conditions without modifying the morphology of the sensing interface. Through optimization of the experimental conditions, an ultrahigh sensitivity of 458.66 mu A ppb(-1) cm(-2) from 0.1 to 1 ppb with a detection limit (3 sigma method) of 0.0022 ppb was obtained. The reproducibility and reliability of the Au@Fe3O4-RTIL sensing interface was also evaluated with good results. Finally, we used this platform to analyze real samples.
WOS关键词ANODIC-STRIPPING VOLTAMMETRY ; TOXIC METAL-IONS ; ATOMIC FLUORESCENCE SPECTROMETRY ; GOLD NANOELECTRODE ENSEMBLES ; HIGHLY SELECTIVE DETECTION ; GLASSY-CARBON ELECTRODE ; THIN-FILM ELECTRODE ; ELECTROCHEMICAL DETECTION ; CYCLIC VOLTAMMETRY ; DRINKING-WATER
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000368562300016
资助机构National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National Natural Science Foundation of China(21475133 ; National Natural Science Foundation of China(21475133 ; National Natural Science Foundation of China(21475133 ; National Natural Science Foundation of China(21475133 ; Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure(SKL201312SIC) ; Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure(SKL201312SIC) ; Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure(SKL201312SIC) ; Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure(SKL201312SIC) ; 2013CB934300) ; 2013CB934300) ; 2013CB934300) ; 2013CB934300) ; 21377131 ; 21377131 ; 21377131 ; 21377131 ; 61474122) ; 61474122) ; 61474122) ; 61474122) ; National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National Natural Science Foundation of China(21475133 ; National Natural Science Foundation of China(21475133 ; National Natural Science Foundation of China(21475133 ; National Natural Science Foundation of China(21475133 ; Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure(SKL201312SIC) ; Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure(SKL201312SIC) ; Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure(SKL201312SIC) ; Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure(SKL201312SIC) ; 2013CB934300) ; 2013CB934300) ; 2013CB934300) ; 2013CB934300) ; 21377131 ; 21377131 ; 21377131 ; 21377131 ; 61474122) ; 61474122) ; 61474122) ; 61474122)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22268]  
专题合肥物质科学研究院_中科院合肥智能机械研究所
作者单位1.Chinese Acad Sci, Inst Intelligent Machines, Nanomat & Environm Detect Lab, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Wei, Juan,Li, Shan-Shan,Guo, Zheng,et al. Adsorbent Assisted in Situ Electrocatalysis: An Ultra-Sensitive Detection of As(III) in Water at Fe3O4 Nanosphere Densely Decorated with Au Nanoparticles[J]. ANALYTICAL CHEMISTRY,2016,88(2):1154-1161.
APA Wei, Juan,Li, Shan-Shan,Guo, Zheng,Chen, Xing,Liu, Jin-Huai,&Huang, Xing-Jiu.(2016).Adsorbent Assisted in Situ Electrocatalysis: An Ultra-Sensitive Detection of As(III) in Water at Fe3O4 Nanosphere Densely Decorated with Au Nanoparticles.ANALYTICAL CHEMISTRY,88(2),1154-1161.
MLA Wei, Juan,et al."Adsorbent Assisted in Situ Electrocatalysis: An Ultra-Sensitive Detection of As(III) in Water at Fe3O4 Nanosphere Densely Decorated with Au Nanoparticles".ANALYTICAL CHEMISTRY 88.2(2016):1154-1161.

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。