期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 826, 期 -, 页码 90-95出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2018.08.016
关键词
Heterostructure; Interface effects; Nanostructure; Electrochemistry; Mercury ion
资金
- Natural Science Foundation of China [51602298, 51572249]
- Natural Science Foundation of Shandong Province [ZR2016EMB02, ZR2016FB05]
- National High Technology Research and Development Program of China [2013A2041106]
- Fundamental Research Funds for the Central University [201562011]
The sensitive online detection technique for heavy metal ions present in ocean, while effectively eliminating the interference of other chemicals, has been lacking at the present time. We found that the interfacial barrier of ZnO/rGO/PPy heterostructure had powerful physical effects on electrochemistry, and the Schottky barrier driven electrochemical detection was further developed. As based on the interfacial physical barrier, it could avoid the existing problem of the traditional electrochemical sensing mechanism and apply in more interfering environment. The sensitive detection of trace mercury ion (Hg2+) in actual seawater was achieved by employing the ZnO/rGO/PPy heterostructure. The interfacial barrier effect provides a chance to develop sensors used in more interfering environment.
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