Effects of annealing temperature on some structural and optical properties of ZnO nanoparticles prepared by a modified sol–gel combustion method
نویسنده:
, , , , , , ,سال
: 2011
چکیده: Abstract
Plate-shaped zinc oxide nanoparticles (ZnO-NPs) were successfully synthesized by a modified sol–gel combustion method. Zinc acetate, pure
water and isopropanol were used as the starting materials. Acetic acid, diethanolamine and nitric acid were used as the polymerization agent,
complexing agent and fuel, respectively. The precursors were formed by mixing aqueous solutions of zinc acetate, acetic acid and diethanolamine.
Nitric acid was used to dry the produced gel. The resulting xerogel was annealed at 600 8C, 650 8C and 750 8C for 1 h. The synthesized ZnO-NPs
were characterized by X-ray diffraction analysis (XRD), thermogravimetric analysis (TGA) and high-magnification transmission electron
microscopy (TEM). The XRD results revealed that the samples produced were crystalline with a hexagonal wurtzite phase. The TEM results
showed single-crystal ZnO-NPs with nearly hexagonal plate shapes. The optical properties of the ZnO-NPs were studied by UV–visible and
Fourier-transform infrared spectroscopy (FTIR). The UV–vis absorption spectra of the ZnO-NPs indicated absorption peaks in the UV region,
which were attributed to the band gap of the ZnO-NPs. The results of the FTIR and UV–vis studies showed that the optical properties of the ZnONPs
depended on the annealing temperature.
Plate-shaped zinc oxide nanoparticles (ZnO-NPs) were successfully synthesized by a modified sol–gel combustion method. Zinc acetate, pure
water and isopropanol were used as the starting materials. Acetic acid, diethanolamine and nitric acid were used as the polymerization agent,
complexing agent and fuel, respectively. The precursors were formed by mixing aqueous solutions of zinc acetate, acetic acid and diethanolamine.
Nitric acid was used to dry the produced gel. The resulting xerogel was annealed at 600 8C, 650 8C and 750 8C for 1 h. The synthesized ZnO-NPs
were characterized by X-ray diffraction analysis (XRD), thermogravimetric analysis (TGA) and high-magnification transmission electron
microscopy (TEM). The XRD results revealed that the samples produced were crystalline with a hexagonal wurtzite phase. The TEM results
showed single-crystal ZnO-NPs with nearly hexagonal plate shapes. The optical properties of the ZnO-NPs were studied by UV–visible and
Fourier-transform infrared spectroscopy (FTIR). The UV–vis absorption spectra of the ZnO-NPs indicated absorption peaks in the UV region,
which were attributed to the band gap of the ZnO-NPs. The results of the FTIR and UV–vis studies showed that the optical properties of the ZnONPs
depended on the annealing temperature.
کلیدواژه(گان): Keywords: A,Sol–gel processes,B,Combustion,C,X-ray diffraction,D,nanoparticles
کالکشن
:
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آمار بازدید
Effects of annealing temperature on some structural and optical properties of ZnO nanoparticles prepared by a modified sol–gel combustion method
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contributor author | علی خرسندزاک | en |
contributor author | مجید ابراهیمی زاده ابریشمی | en |
contributor author | W. H. Abd. Majid | en |
contributor author | R. Yousefi | en |
contributor author | محمد حسینی | en |
contributor author | Ali Khorsand Zak | fa |
contributor author | Majid Ebrahimizadeh Abrishami | fa |
contributor author | Mohammad Hosseini | fa |
date accessioned | 2020-06-06T14:33:41Z | |
date available | 2020-06-06T14:33:41Z | |
date issued | 2011 | |
identifier uri | http://libsearch.um.ac.ir:80/fum/handle/fum/3401914 | |
description abstract | Abstract Plate-shaped zinc oxide nanoparticles (ZnO-NPs) were successfully synthesized by a modified sol–gel combustion method. Zinc acetate, pure water and isopropanol were used as the starting materials. Acetic acid, diethanolamine and nitric acid were used as the polymerization agent, complexing agent and fuel, respectively. The precursors were formed by mixing aqueous solutions of zinc acetate, acetic acid and diethanolamine. Nitric acid was used to dry the produced gel. The resulting xerogel was annealed at 600 8C, 650 8C and 750 8C for 1 h. The synthesized ZnO-NPs were characterized by X-ray diffraction analysis (XRD), thermogravimetric analysis (TGA) and high-magnification transmission electron microscopy (TEM). The XRD results revealed that the samples produced were crystalline with a hexagonal wurtzite phase. The TEM results showed single-crystal ZnO-NPs with nearly hexagonal plate shapes. The optical properties of the ZnO-NPs were studied by UV–visible and Fourier-transform infrared spectroscopy (FTIR). The UV–vis absorption spectra of the ZnO-NPs indicated absorption peaks in the UV region, which were attributed to the band gap of the ZnO-NPs. The results of the FTIR and UV–vis studies showed that the optical properties of the ZnONPs depended on the annealing temperature. | en |
language | English | |
title | Effects of annealing temperature on some structural and optical properties of ZnO nanoparticles prepared by a modified sol–gel combustion method | en |
type | Journal Paper | |
contenttype | External Fulltext | |
subject keywords | Keywords: A | en |
subject keywords | Sol–gel processes | en |
subject keywords | B | en |
subject keywords | Combustion | en |
subject keywords | C | en |
subject keywords | X-ray diffraction | en |
subject keywords | D | en |
subject keywords | nanoparticles | en |
journal title | Ceramics International | fa |
pages | 393-398 | |
journal volume | 37 | |
journal issue | 4 | |
identifier link | https://profdoc.um.ac.ir/paper-abstract-1019188.html | |
identifier articleid | 1019188 |