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Bulletin of Materials Science

, Volume 36, Issue 4, pp 505–511 | Cite as

Preparation and gas-sensing property of parallel-aligned ZnO nanofibrous films

  • ZIKUI BAIEmail author
  • WEILIN XU
  • CHANGSHENG XIE
  • MINGCHAO DONG
  • SHUNPING ZHANG
  • JIE XU
  • SHILI XIAO
Article

Abstract

Parallel-aligned zinc oxide (ZnO) nanofibrous films fabricated by using electrospinning technique were used in gas sensors for the detection of ethanol and formaldehyde. The morphologies and crystal structures of the films were characterized by field-emission scanning electron microscopy (FE–SEM) and X-ray diffraction (XRD), respectively. FE–SEM results showed that ZnO nanofibres had an approximate diameter of 100–300 nm and consisted of hexagonal wurtzite structure ZnO nanocrystals with a primary particle diameter of 20–50 nm. The results of resistance–temperature characteristics and responses to ethanol and formaldehyde indicated that the parallel-aligned ZnO nanofibrous film had a low activation energy (0· 246 eV), a low optimum operating temperature and a high response. The response and recovery had a high rate in the initial stage and a low rate in the later stage. The parallel-aligned ZnO nanofibrous film had excellent potential application for formaldehyde sensor.

Keywords

ZnO parallel-aligned nanofibrous film electrospinning sensing characteristics 

Notes

Acknowledgements

This work was supported by 973 project of China (No. 2012CB722701), the Natural Science Foundation of Hubei province (No. 2012FFB04603) and the Natural Science Foundation of Wuhan Textile University. The authors are also grateful to Analytical and Testing Centre of Huazhong University of Science and Technology.

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Copyright information

© Indian Academy of Sciences 2013

Authors and Affiliations

  • ZIKUI BAI
    • 1
    Email author
  • WEILIN XU
    • 1
  • CHANGSHENG XIE
    • 2
  • MINGCHAO DONG
    • 3
  • SHUNPING ZHANG
    • 2
  • JIE XU
    • 1
  • SHILI XIAO
    • 1
  1. 1.Key Lab for Green Processing and Functionalization of New Textile Materials, Ministry of EducationWuhan Textile UniversityWuhanP.R. China
  2. 2.State Key Laboratory of Material Processing and Die and Mould TechnologyHuazhong University of Science and TechnologyWuhanP.R. China
  3. 3.Zhuxi County Environmental Protection AgencyShiyanP.R. China

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