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Comprehensive study on morphological, structural and optical properties of Cr2O3 nanoparticle and its antibacterial activities

Chromium (III) oxide (Cr2O3) nanoparticles are generated by thermal treatment (calcination) of precursor materials such as chromium nitrate along with a poly (vinyl pyrrolidone) capping agent. The samples produced were characterised by various techniques, including X-ray diffraction (XRD), energy di...

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Main Authors: Mohamed Kamari, Halimah, Al-Hada, Naif Mohammed, Baqer, Anwar Ali, Shaari, Abdul Halim, Saion, Elias
Format: Article
Language:English
Published: Springer 2019
Online Access:http://psasir.upm.edu.my/id/eprint/80996/1/CHRONIUM.pdf
http://psasir.upm.edu.my/id/eprint/80996/
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spelling my.upm.eprints.809962020-10-14T19:13:22Z http://psasir.upm.edu.my/id/eprint/80996/ Comprehensive study on morphological, structural and optical properties of Cr2O3 nanoparticle and its antibacterial activities Mohamed Kamari, Halimah Al-Hada, Naif Mohammed Baqer, Anwar Ali Shaari, Abdul Halim Saion, Elias Chromium (III) oxide (Cr2O3) nanoparticles are generated by thermal treatment (calcination) of precursor materials such as chromium nitrate along with a poly (vinyl pyrrolidone) capping agent. The samples produced were characterised by various techniques, including X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FT-IR). Examination results obtained from XRD showed that Cr2O3 nanoparticles exhibit hexagonal crystalline structures, with the presence of Cr and O in these novel materials being confirmed by results of analyses of both EDX and FT-IR. Results of TEM have pointed out that the average nanoparticle size was noticeably increased from 28 to 46 nm in relation to increase of calcination temperature of a range between 500 and 800 °C. The surface composition and valence state of the produced nanoparticles were examined by X-ray photoelectron spectroscopy (XPS), the optical energy gap has been evaluated using UV–visible reflectance spectra with the help of Kubelka–Munk equation. The energy band gap had a reversely proportional relationship with calcination temperature with a reduction in energy band gap from 3.12 to 3.01 eV. Photoluminescence (PL) spectra indicated an increase in photoluminescence with increasing particle size. The antibacterial activity of the Cr2O3 nanoparticles was evaluated in-vitro using gram-negative Escherichia coli ATCC 25922 and gram-positive Bacillus subtilis UPMC 1175. Springer 2019-03 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/80996/1/CHRONIUM.pdf Mohamed Kamari, Halimah and Al-Hada, Naif Mohammed and Baqer, Anwar Ali and Shaari, Abdul Halim and Saion, Elias (2019) Comprehensive study on morphological, structural and optical properties of Cr2O3 nanoparticle and its antibacterial activities. Journal of Materials Science: Materials in Electronics, 30. pp. 8035-8046. ISSN 0957-4522 10.1007/s10854-019-01125-2
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Chromium (III) oxide (Cr2O3) nanoparticles are generated by thermal treatment (calcination) of precursor materials such as chromium nitrate along with a poly (vinyl pyrrolidone) capping agent. The samples produced were characterised by various techniques, including X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FT-IR). Examination results obtained from XRD showed that Cr2O3 nanoparticles exhibit hexagonal crystalline structures, with the presence of Cr and O in these novel materials being confirmed by results of analyses of both EDX and FT-IR. Results of TEM have pointed out that the average nanoparticle size was noticeably increased from 28 to 46 nm in relation to increase of calcination temperature of a range between 500 and 800 °C. The surface composition and valence state of the produced nanoparticles were examined by X-ray photoelectron spectroscopy (XPS), the optical energy gap has been evaluated using UV–visible reflectance spectra with the help of Kubelka–Munk equation. The energy band gap had a reversely proportional relationship with calcination temperature with a reduction in energy band gap from 3.12 to 3.01 eV. Photoluminescence (PL) spectra indicated an increase in photoluminescence with increasing particle size. The antibacterial activity of the Cr2O3 nanoparticles was evaluated in-vitro using gram-negative Escherichia coli ATCC 25922 and gram-positive Bacillus subtilis UPMC 1175.
format Article
author Mohamed Kamari, Halimah
Al-Hada, Naif Mohammed
Baqer, Anwar Ali
Shaari, Abdul Halim
Saion, Elias
spellingShingle Mohamed Kamari, Halimah
Al-Hada, Naif Mohammed
Baqer, Anwar Ali
Shaari, Abdul Halim
Saion, Elias
Comprehensive study on morphological, structural and optical properties of Cr2O3 nanoparticle and its antibacterial activities
author_facet Mohamed Kamari, Halimah
Al-Hada, Naif Mohammed
Baqer, Anwar Ali
Shaari, Abdul Halim
Saion, Elias
author_sort Mohamed Kamari, Halimah
title Comprehensive study on morphological, structural and optical properties of Cr2O3 nanoparticle and its antibacterial activities
title_short Comprehensive study on morphological, structural and optical properties of Cr2O3 nanoparticle and its antibacterial activities
title_full Comprehensive study on morphological, structural and optical properties of Cr2O3 nanoparticle and its antibacterial activities
title_fullStr Comprehensive study on morphological, structural and optical properties of Cr2O3 nanoparticle and its antibacterial activities
title_full_unstemmed Comprehensive study on morphological, structural and optical properties of Cr2O3 nanoparticle and its antibacterial activities
title_sort comprehensive study on morphological, structural and optical properties of cr2o3 nanoparticle and its antibacterial activities
publisher Springer
publishDate 2019
url http://psasir.upm.edu.my/id/eprint/80996/1/CHRONIUM.pdf
http://psasir.upm.edu.my/id/eprint/80996/
_version_ 1681490839189061632
score 13.211869

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