期刊
ANALYTICAL METHODS
卷 2, 期 11, 页码 1710-1714出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0ay00424c
关键词
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资金
- National Natural Science Foundation of China [90923033, 60604022]
- National Basic Research Program of China [2007CB936603]
- National High Technology Research and Development Program of China [2007AA022005]
- Anhui Provincial Natural Science Foundation [090412036]
- Chinese Academy of Sciences, China
The preparation of materials with size and porosity in the nanometre range is of technological importance for a wide range of sensing applications. Here, the ultrasensitive detection of Persistent Organic Pollutants (POPs), i.e., Aldrin and DDT, has been investigated using a sub-10 nm SnO2/ MWCNT nanocomposite-based gas sensor. The features of prepared nanocomposites are carefully studied using SEM, TEM, and Raman spectroscopy. The sensing material shows a very attractive improved sensitivity compared to a conventional SnO2 sensor. One major advantage of this sensing material is the stable attachment between SnO2 nanoparticles and carbon nanotubes. Accordingly, facile preparation, high sensitivity, long-term stability, and nanoscale effects in this composite can create novel avenues and applications for fabricating important POPs sensors.
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