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Nano Biomedicine and Engineering 2021, 13(1): 44-51 https://doi.org/10.5101/nbe.v13i1.p44-51
Research Article | Open Access | Issue | Published: 27 January 2021

Synthesis of ZnO Nanorod/TiO2 Nanotube and its Application as a Resistive Gas Sensor

Show Author's Information Marwa Abdul Muhsien Hassan( ),  NazarKhalaf Mahan( )
Department of Physics, College of Science, Mustansyriah University, Baghdad, 00964, Iraq
Keywords:
Gas sensor, TiO2 nanotube, SEM, ZnO nanorod, ZnO/TiO2
Cite this article:
Hassan MAM, Mahan N. Synthesis of ZnO Nanorod/TiO2 Nanotube and its Application as a Resistive Gas Sensor. Nano Biomedicine and Engineering, 2021, 13(1): 44-51. https://doi.org/10.5101/nbe.v13i1.p44-51
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Abstract Full text About this article

In this study, different chemical methods were used to synthesize ZnO nanorod, TiO2 nanotube and ZnO/TiO2 nanostructure as high sensitivity vapor sensor for ethanol. The surface topography of ZnO nanorod, TiO2 nanotube and ZnO/TiO2 was studied by using the scanning electron microscopy (SEM). The X-rays diffraction showed the appearance of (101) ZnO which has single crystalline with a hexagonal wurtzite while TiO2 has been crystallized in a tetragonal with the preferential orientation of the crystallinity with the prominent (111). The relation between resistance-time showed high sensitivity for ZnO/TiO2 and was found to be around 20-80% at different working temperature. ZnO/TiO2 sensor was the most sensitive to ethanol vapor.


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Synthesis of ZnO Nanorod/TiO2 Nanotube and its Application as a Resistive Gas Sensor

Show Author's information Marwa Abdul Muhsien Hassan( ), NazarKhalaf Mahan( )
Department of Physics, College of Science, Mustansyriah University, Baghdad, 00964, Iraq

Abstract

In this study, different chemical methods were used to synthesize ZnO nanorod, TiO2 nanotube and ZnO/TiO2 nanostructure as high sensitivity vapor sensor for ethanol. The surface topography of ZnO nanorod, TiO2 nanotube and ZnO/TiO2 was studied by using the scanning electron microscopy (SEM). The X-rays diffraction showed the appearance of (101) ZnO which has single crystalline with a hexagonal wurtzite while TiO2 has been crystallized in a tetragonal with the preferential orientation of the crystallinity with the prominent (111). The relation between resistance-time showed high sensitivity for ZnO/TiO2 and was found to be around 20-80% at different working temperature. ZnO/TiO2 sensor was the most sensitive to ethanol vapor.

Keywords: Gas sensor, TiO2 nanotube, SEM, ZnO nanorod, ZnO/TiO2

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Publication history
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Publication history

Received: 15 July 2020
Accepted: 19 December 2020
Published: 27 January 2021
Issue date: March 2021

Copyright

© Marwa Abdul Muhsien Hassan, Nazar Khalaf Mahan.

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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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