期刊
APPLIED SURFACE SCIENCE
卷 255, 期 16, 页码 7343-7347出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2009.02.094
关键词
Electrospinning; ZnO-SnO2 nanofiber; Toluene sensor
类别
资金
- National Science and Technology Support Program of China [2007BAE17B0]
- National 973 Project of China [2007CD936203]
- National 863 Project of China [2007AA03Z324]
We proposed in the present work that large-scale synthesis of sensitive ZnO-SnO2 nanofibres which can be obtained via a simple electrospinning method. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction patterns (XRD) showed the average diameter of ZnO-SnO2 nanofibres ranging between 100 and 200 nm, the mixture of wurtzite (ZnO) and rutile (SnO2) structure in the composite fibers. The sensitivity of the obtained ZnO-SnO2 nanofibres to toluene was also investigated. The results showed that under optimal conditions, the calibration curve of response versus toluene concentration was linear in the range of 10-300 ppm, the response and recovery time were only several seconds, and sensitivity for toluene was desirable. (C) 2009 Elsevier B. V. All rights reserved.
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