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Structural, optical, and photocatalytic investigation of nickel oxide@graphene oxide nanocomposite thin films by RF magnetron sputtering

Despite the recent advancement in graphene oxide (GO) as a host material in energy and environmental sectors, its composite thin films with metal oxides such as nickel oxide (NiO) and its optical, structural, chemical state, and photocatalytic activities have been poorly explored. Herein, we have re...

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Main Authors:	Jilani, Asim, Othman, Mohd. Hafiz Dzarfan, Ansari, Mohammad Omaish, Kumar, Rajeev, Khan, Imran Ullah, Abdel-wahab, M. Sh., Alshahrie, Ahmed, Barakat, M. A., Kurniawan, Tonni Agustiono
Format:	Article
Published:	Springer Link 2018
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/84266/ https://doi.org/10.1007/s10853-018-2692-7
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spelling	my.utm.842662019-12-16T03:22:08Z http://eprints.utm.my/id/eprint/84266/ Structural, optical, and photocatalytic investigation of nickel oxide@graphene oxide nanocomposite thin films by RF magnetron sputtering Jilani, Asim Othman, Mohd. Hafiz Dzarfan Ansari, Mohammad Omaish Kumar, Rajeev Khan, Imran Ullah Abdel-wahab, M. Sh. Alshahrie, Ahmed Barakat, M. A. Kurniawan, Tonni Agustiono TP Chemical technology Despite the recent advancement in graphene oxide (GO) as a host material in energy and environmental sectors, its composite thin films with metal oxides such as nickel oxide (NiO) and its optical, structural, chemical state, and photocatalytic activities have been poorly explored. Herein, we have reported the GO/NiO thin films preparation by a combination of chemical and physical deposition techniques (i.e. spin coating followed by DC/RF sputtering). The as-prepared composites thin films were characterised using Raman spectroscopy, X-ray diffraction/photoelectron spectroscopy scanning electron microscopy, and atomic force microscopy. The surface topography confirmed the uniform deposition of NiO over thin films of GO. The XPS results showed the formation of NiC along with the partial reduction in GO into graphene with their existing four constituents, i.e. NiO, NiC, GO, in the thin film composites. The classical plasmon, Wemple and Didomenico model, was first time applied for GO/NiO to compute energy loss functions, and dispersion energy parameters. The theoretical calculated values for the deposited GO/NiO thin films were found to be in very close agreement to the standard classical plasmon values. The change in spin orbital movement of Ni is considered due to the interaction between its nanoparticles and basal planes of GO. Thin films applied for the photodegradation of recalcitrant organic pollutant 2-chlorophenol (2-CP) revealed the dependence of photocatalytic efficiency on particle size and also on the interaction of GO with NiO rather than the ratio of NiO and GO in the films. Springer Link 2018 Article PeerReviewed Jilani, Asim and Othman, Mohd. Hafiz Dzarfan and Ansari, Mohammad Omaish and Kumar, Rajeev and Khan, Imran Ullah and Abdel-wahab, M. Sh. and Alshahrie, Ahmed and Barakat, M. A. and Kurniawan, Tonni Agustiono (2018) Structural, optical, and photocatalytic investigation of nickel oxide@graphene oxide nanocomposite thin films by RF magnetron sputtering. Journal of Materials Science, 53 (21). pp. 15034-15050. ISSN 0022-2461 https://doi.org/10.1007/s10853-018-2692-7
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TP Chemical technology
spellingShingle	TP Chemical technology Jilani, Asim Othman, Mohd. Hafiz Dzarfan Ansari, Mohammad Omaish Kumar, Rajeev Khan, Imran Ullah Abdel-wahab, M. Sh. Alshahrie, Ahmed Barakat, M. A. Kurniawan, Tonni Agustiono Structural, optical, and photocatalytic investigation of nickel oxide@graphene oxide nanocomposite thin films by RF magnetron sputtering
description	Despite the recent advancement in graphene oxide (GO) as a host material in energy and environmental sectors, its composite thin films with metal oxides such as nickel oxide (NiO) and its optical, structural, chemical state, and photocatalytic activities have been poorly explored. Herein, we have reported the GO/NiO thin films preparation by a combination of chemical and physical deposition techniques (i.e. spin coating followed by DC/RF sputtering). The as-prepared composites thin films were characterised using Raman spectroscopy, X-ray diffraction/photoelectron spectroscopy scanning electron microscopy, and atomic force microscopy. The surface topography confirmed the uniform deposition of NiO over thin films of GO. The XPS results showed the formation of NiC along with the partial reduction in GO into graphene with their existing four constituents, i.e. NiO, NiC, GO, in the thin film composites. The classical plasmon, Wemple and Didomenico model, was first time applied for GO/NiO to compute energy loss functions, and dispersion energy parameters. The theoretical calculated values for the deposited GO/NiO thin films were found to be in very close agreement to the standard classical plasmon values. The change in spin orbital movement of Ni is considered due to the interaction between its nanoparticles and basal planes of GO. Thin films applied for the photodegradation of recalcitrant organic pollutant 2-chlorophenol (2-CP) revealed the dependence of photocatalytic efficiency on particle size and also on the interaction of GO with NiO rather than the ratio of NiO and GO in the films.
format	Article
author	Jilani, Asim Othman, Mohd. Hafiz Dzarfan Ansari, Mohammad Omaish Kumar, Rajeev Khan, Imran Ullah Abdel-wahab, M. Sh. Alshahrie, Ahmed Barakat, M. A. Kurniawan, Tonni Agustiono
author_facet	Jilani, Asim Othman, Mohd. Hafiz Dzarfan Ansari, Mohammad Omaish Kumar, Rajeev Khan, Imran Ullah Abdel-wahab, M. Sh. Alshahrie, Ahmed Barakat, M. A. Kurniawan, Tonni Agustiono
author_sort	Jilani, Asim
title	Structural, optical, and photocatalytic investigation of nickel oxide@graphene oxide nanocomposite thin films by RF magnetron sputtering
title_short	Structural, optical, and photocatalytic investigation of nickel oxide@graphene oxide nanocomposite thin films by RF magnetron sputtering
title_full	Structural, optical, and photocatalytic investigation of nickel oxide@graphene oxide nanocomposite thin films by RF magnetron sputtering
title_fullStr	Structural, optical, and photocatalytic investigation of nickel oxide@graphene oxide nanocomposite thin films by RF magnetron sputtering
title_full_unstemmed	Structural, optical, and photocatalytic investigation of nickel oxide@graphene oxide nanocomposite thin films by RF magnetron sputtering
title_sort	structural, optical, and photocatalytic investigation of nickel oxide@graphene oxide nanocomposite thin films by rf magnetron sputtering
publisher	Springer Link
publishDate	2018
url	http://eprints.utm.my/id/eprint/84266/ https://doi.org/10.1007/s10853-018-2692-7
_version_	1654960063757942784
score	13.211869

Structural, optical, and photocatalytic investigation of nickel oxide@graphene oxide nanocomposite thin films by RF magnetron sputtering

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