Using the [Co(oct)2] as a New Precursor for Simple Synthesis of CoS2 Nanoparticles and Kinetics Studies on Photocatalytic Activities Under UV Irradiation

Cobalt sulfide (CoS2) nanostructures were synthesized via a simple thermal decomposition method using [Co(oct)2] as a new precursor. Using the organometallic compound as precursor could synthesize materials in nano-scale because of having the massive structure that acted as capping agent. The produc...

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Main Authors:	Faezeh Soofivand, Mohammad Sabet, Hamideh Seyghalkar, Masoud Salavati-Niasari
Format:	Article
Language:	English
Published:	Nanoscience and Nanotechnology Research Center, University of Kashan 2018-01-01
Series:	Journal of Nanostructures
Subjects:	[co(oct)2] cos2 nanostructures photocatalyst pseudo first-order model thermal decomposition
Online Access:	http://jns.kashanu.ac.ir/article_58585_a44ea4813aec4d111a6f891725ce2b60.pdf

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spelling	doaj-9b375e8d956d47e1a79520d3253c90892020-11-25T02:38:13ZengNanoscience and Nanotechnology Research Center, University of KashanJournal of Nanostructures2251-78712251-788X2018-01-0181758110.22052/JNS.2018.01.00958585Using the [Co(oct)2] as a New Precursor for Simple Synthesis of CoS2 Nanoparticles and Kinetics Studies on Photocatalytic Activities Under UV IrradiationFaezeh Soofivand0Mohammad Sabet1Hamideh Seyghalkar2Masoud Salavati-Niasari3Young Researchers and Elite Club, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, IranDepartment of Chemistry, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan, IranDepartment of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, IranInstitute of Nano Science and Nano Technology, University of Kashan, Kashan, IranCobalt sulfide (CoS2) nanostructures were synthesized via a simple thermal decomposition method using [Co(oct)2] as a new precursor. Using the organometallic compound as precursor could synthesize materials in nano-scale because of having the massive structure that acted as capping agent. The products were characterized by various analyses such as X-ray diffraction pattern (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and fourier transform infrared (FT-IR) spectroscopy. Also, the optical properties of this product was investigated by photoluminescence spectroscopy (PL). However, band gap of CoS2 nanostructures was estimated about 2.2 eV in this work but CoS2 was considered as a metallic product in the former work. This difference may be related to quantum effects in nanomaterials. The photocatalytic activity of CoS2 nanoparticles was examined by decolorization of Erythrosine as an organic pollutant under UV irradiation and degradation percent of this dye was reported about 84 %. According to the kinetics studies, the photocatalytic reactions are following the Pseudo first-order model.http://jns.kashanu.ac.ir/article_58585_a44ea4813aec4d111a6f891725ce2b60.pdf[co(oct)2]cos2nanostructuresphotocatalystpseudo first-order modelthermal decomposition
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Faezeh Soofivand Mohammad Sabet Hamideh Seyghalkar Masoud Salavati-Niasari
spellingShingle	Faezeh Soofivand Mohammad Sabet Hamideh Seyghalkar Masoud Salavati-Niasari Using the [Co(oct)2] as a New Precursor for Simple Synthesis of CoS2 Nanoparticles and Kinetics Studies on Photocatalytic Activities Under UV Irradiation Journal of Nanostructures [co(oct)2] cos2 nanostructures photocatalyst pseudo first-order model thermal decomposition
author_facet	Faezeh Soofivand Mohammad Sabet Hamideh Seyghalkar Masoud Salavati-Niasari
author_sort	Faezeh Soofivand
title	Using the [Co(oct)2] as a New Precursor for Simple Synthesis of CoS2 Nanoparticles and Kinetics Studies on Photocatalytic Activities Under UV Irradiation
title_short	Using the [Co(oct)2] as a New Precursor for Simple Synthesis of CoS2 Nanoparticles and Kinetics Studies on Photocatalytic Activities Under UV Irradiation
title_full	Using the [Co(oct)2] as a New Precursor for Simple Synthesis of CoS2 Nanoparticles and Kinetics Studies on Photocatalytic Activities Under UV Irradiation
title_fullStr	Using the [Co(oct)2] as a New Precursor for Simple Synthesis of CoS2 Nanoparticles and Kinetics Studies on Photocatalytic Activities Under UV Irradiation
title_full_unstemmed	Using the [Co(oct)2] as a New Precursor for Simple Synthesis of CoS2 Nanoparticles and Kinetics Studies on Photocatalytic Activities Under UV Irradiation
title_sort	using the [co(oct)2] as a new precursor for simple synthesis of cos2 nanoparticles and kinetics studies on photocatalytic activities under uv irradiation
publisher	Nanoscience and Nanotechnology Research Center, University of Kashan
series	Journal of Nanostructures
issn	2251-7871 2251-788X
publishDate	2018-01-01
description	Cobalt sulfide (CoS2) nanostructures were synthesized via a simple thermal decomposition method using [Co(oct)2] as a new precursor. Using the organometallic compound as precursor could synthesize materials in nano-scale because of having the massive structure that acted as capping agent. The products were characterized by various analyses such as X-ray diffraction pattern (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and fourier transform infrared (FT-IR) spectroscopy. Also, the optical properties of this product was investigated by photoluminescence spectroscopy (PL). However, band gap of CoS2 nanostructures was estimated about 2.2 eV in this work but CoS2 was considered as a metallic product in the former work. This difference may be related to quantum effects in nanomaterials. The photocatalytic activity of CoS2 nanoparticles was examined by decolorization of Erythrosine as an organic pollutant under UV irradiation and degradation percent of this dye was reported about 84 %. According to the kinetics studies, the photocatalytic reactions are following the Pseudo first-order model.
topic	[co(oct)2] cos2 nanostructures photocatalyst pseudo first-order model thermal decomposition
url	http://jns.kashanu.ac.ir/article_58585_a44ea4813aec4d111a6f891725ce2b60.pdf
work_keys_str_mv	AT faezehsoofivand usingthecooct2asanewprecursorforsimplesynthesisofcos2nanoparticlesandkineticsstudiesonphotocatalyticactivitiesunderuvirradiation AT mohammadsabet usingthecooct2asanewprecursorforsimplesynthesisofcos2nanoparticlesandkineticsstudiesonphotocatalyticactivitiesunderuvirradiation AT hamidehseyghalkar usingthecooct2asanewprecursorforsimplesynthesisofcos2nanoparticlesandkineticsstudiesonphotocatalyticactivitiesunderuvirradiation AT masoudsalavatiniasari usingthecooct2asanewprecursorforsimplesynthesisofcos2nanoparticlesandkineticsstudiesonphotocatalyticactivitiesunderuvirradiation
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Using the [Co(oct)2] as a New Precursor for Simple Synthesis of CoS2 Nanoparticles and Kinetics Studies on Photocatalytic Activities Under UV Irradiation

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