Properties of 4-fluorobenzoic acid modified zinc oxide nanoparticles by sol-gel method

Metal oxide semiconductor has been widely studied due to it varied properties and application. Among metal oxide, ZnO semiconductor is of great interest due to the wide bandgap (3.2-3.4 eV) with hexagonal wurtzite structure. This study involves preparing ZnO by sol-gel method and the comparison of o...

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Main Author:	Salahuddin Ahmed, Hozan
Format:	Thesis
Language:	English
Published:	2013
Subjects:	Q Science (General)
Online Access:	http://eprints.utm.my/id/eprint/39742/5/HozanSalahuddinAhmedMFS2013.pdf
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id	my-utm-ep.39742
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spelling	my-utm-ep.397422017-07-17T07:50:05Z Properties of 4-fluorobenzoic acid modified zinc oxide nanoparticles by sol-gel method 2013-06 Salahuddin Ahmed, Hozan Q Science (General) Metal oxide semiconductor has been widely studied due to it varied properties and application. Among metal oxide, ZnO semiconductor is of great interest due to the wide bandgap (3.2-3.4 eV) with hexagonal wurtzite structure. This study involves preparing ZnO by sol-gel method and the comparison of optical properties of ZnO nanoparticle at (350 and 450ºC) before and after modifying with 4-fluorobenzoic acid (4-FBA). The optical properties were studied using UV-Vis-NIR scanning spectrophotometer. FESEM image shows that the irregular spherical shape and there is variation in the surface morphology of modified and unmodified ZnO nanoparticle. The grain size increased with increasing temperature, but with addition of modifier the particle size didn’t change. The bandgap decrease with increasing temperature but recorded no changes after applying modifier. The XRD patterns of these samples are in close agreement with the JCPDS standard (No. 36-1451). It was observed that all samples were polycrystalline with hexagonal wurtzite structure with diffraction peaks oriented along the (100), (002), (101), (102), (110) and (103) planes. Fourier transforms infrared spectroscopy (FTIR) showed a band of 400-600 cm-1 corresponding to the Zn-O vibration mode. 2013-06 Thesis http://eprints.utm.my/id/eprint/39742/ http://eprints.utm.my/id/eprint/39742/5/HozanSalahuddinAhmedMFS2013.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Salahuddin Ahmed, Hozan Properties of 4-fluorobenzoic acid modified zinc oxide nanoparticles by sol-gel method
description	Metal oxide semiconductor has been widely studied due to it varied properties and application. Among metal oxide, ZnO semiconductor is of great interest due to the wide bandgap (3.2-3.4 eV) with hexagonal wurtzite structure. This study involves preparing ZnO by sol-gel method and the comparison of optical properties of ZnO nanoparticle at (350 and 450ºC) before and after modifying with 4-fluorobenzoic acid (4-FBA). The optical properties were studied using UV-Vis-NIR scanning spectrophotometer. FESEM image shows that the irregular spherical shape and there is variation in the surface morphology of modified and unmodified ZnO nanoparticle. The grain size increased with increasing temperature, but with addition of modifier the particle size didn’t change. The bandgap decrease with increasing temperature but recorded no changes after applying modifier. The XRD patterns of these samples are in close agreement with the JCPDS standard (No. 36-1451). It was observed that all samples were polycrystalline with hexagonal wurtzite structure with diffraction peaks oriented along the (100), (002), (101), (102), (110) and (103) planes. Fourier transforms infrared spectroscopy (FTIR) showed a band of 400-600 cm-1 corresponding to the Zn-O vibration mode.
format	Thesis
qualification_level	Master's degree
author	Salahuddin Ahmed, Hozan
author_facet	Salahuddin Ahmed, Hozan
author_sort	Salahuddin Ahmed, Hozan
title	Properties of 4-fluorobenzoic acid modified zinc oxide nanoparticles by sol-gel method
title_short	Properties of 4-fluorobenzoic acid modified zinc oxide nanoparticles by sol-gel method
title_full	Properties of 4-fluorobenzoic acid modified zinc oxide nanoparticles by sol-gel method
title_fullStr	Properties of 4-fluorobenzoic acid modified zinc oxide nanoparticles by sol-gel method
title_full_unstemmed	Properties of 4-fluorobenzoic acid modified zinc oxide nanoparticles by sol-gel method
title_sort	properties of 4-fluorobenzoic acid modified zinc oxide nanoparticles by sol-gel method
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2013
url	http://eprints.utm.my/id/eprint/39742/5/HozanSalahuddinAhmedMFS2013.pdf
_version_	1747816545610891264

Properties of 4-fluorobenzoic acid modified zinc oxide nanoparticles by sol-gel method

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