Fabrication of ZiF-8 metal organic framework (MOFs)-based CuO-ZnO photocatalyst with enhanced solar-light-driven property for degradation of organic dyes

In this research, novel CuO-ZnO/ZiF-8 metal–organic frameworks (MOFs) photocatalyst with different mass percentages of ZiF-8 were prepared for water purification applications under visible light. The precipitation method was used to synthesize CuO-ZnO/ZiF-8 photocatalysts. Some techniques, including...

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Autores principales:	Bahman Abdollahi, Ahmad Najafidoust, Ebrahim Abbasi Asl, Mika Sillanpaa
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	CuO-ZnO/ZiF-8 Heterostructure MOF-based Nanophotocatalyst Sono-precipitation Photodegradation Acid Orange 7 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/7936883a821448bda613b1f34e369250
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spelling	oai:doaj.org-article:7936883a821448bda613b1f34e3692502021-11-20T04:58:02ZFabrication of ZiF-8 metal organic framework (MOFs)-based CuO-ZnO photocatalyst with enhanced solar-light-driven property for degradation of organic dyes1878-535210.1016/j.arabjc.2021.103444https://doaj.org/article/7936883a821448bda613b1f34e3692502021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1878535221004597https://doaj.org/toc/1878-5352In this research, novel CuO-ZnO/ZiF-8 metal–organic frameworks (MOFs) photocatalyst with different mass percentages of ZiF-8 were prepared for water purification applications under visible light. The precipitation method was used to synthesize CuO-ZnO/ZiF-8 photocatalysts. Some techniques, including XRD, FESEM, EDX, BET-BJH, FTIR, DRS, and pHpzc, were performed to determine the structural, chemical, and optical properties of the prepared samples. DRS analysis represented that CuO-ZnO/ZiF-8(20) had narrower band gap energy compared to CuO-ZnO and ZiF-8. Also, BET-BJH analysis results showed that CuO-ZnO had a low surface area that impeded the absorption of pollutant molecules. In contrast, the CuO-ZnO/ZiF-8(20) sample, due to the presence of ZiF-8, had a high specific surface area which enabled higher pollutant adsorption on the photocatalyst surface.Moreover, the synthesized samples were evaluated for the solar-light-driven removal of different organic dyes, such as Acid Orange 7, Methylene blue, and Malachite green. The tremendously enhanced photocatalytic activity under the simulated solar light with 98.1% removal of AO7 was observed over CuO-ZnO/ZiF-8(20) sample. Then, the effect of initial solution pH as an essential factor on photocatalytic activity was investigated. Finally, the reaction mechanism of AO7 degradation over CuO-ZnO/ZiF-8(20) was proposed.Bahman AbdollahiAhmad NajafidoustEbrahim Abbasi AslMika SillanpaaElsevierarticleCuO-ZnO/ZiF-8 HeterostructureMOF-based NanophotocatalystSono-precipitationPhotodegradationAcid Orange 7ChemistryQD1-999ENArabian Journal of Chemistry, Vol 14, Iss 12, Pp 103444- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	CuO-ZnO/ZiF-8 Heterostructure MOF-based Nanophotocatalyst Sono-precipitation Photodegradation Acid Orange 7 Chemistry QD1-999
spellingShingle	CuO-ZnO/ZiF-8 Heterostructure MOF-based Nanophotocatalyst Sono-precipitation Photodegradation Acid Orange 7 Chemistry QD1-999 Bahman Abdollahi Ahmad Najafidoust Ebrahim Abbasi Asl Mika Sillanpaa Fabrication of ZiF-8 metal organic framework (MOFs)-based CuO-ZnO photocatalyst with enhanced solar-light-driven property for degradation of organic dyes
description	In this research, novel CuO-ZnO/ZiF-8 metal–organic frameworks (MOFs) photocatalyst with different mass percentages of ZiF-8 were prepared for water purification applications under visible light. The precipitation method was used to synthesize CuO-ZnO/ZiF-8 photocatalysts. Some techniques, including XRD, FESEM, EDX, BET-BJH, FTIR, DRS, and pHpzc, were performed to determine the structural, chemical, and optical properties of the prepared samples. DRS analysis represented that CuO-ZnO/ZiF-8(20) had narrower band gap energy compared to CuO-ZnO and ZiF-8. Also, BET-BJH analysis results showed that CuO-ZnO had a low surface area that impeded the absorption of pollutant molecules. In contrast, the CuO-ZnO/ZiF-8(20) sample, due to the presence of ZiF-8, had a high specific surface area which enabled higher pollutant adsorption on the photocatalyst surface.Moreover, the synthesized samples were evaluated for the solar-light-driven removal of different organic dyes, such as Acid Orange 7, Methylene blue, and Malachite green. The tremendously enhanced photocatalytic activity under the simulated solar light with 98.1% removal of AO7 was observed over CuO-ZnO/ZiF-8(20) sample. Then, the effect of initial solution pH as an essential factor on photocatalytic activity was investigated. Finally, the reaction mechanism of AO7 degradation over CuO-ZnO/ZiF-8(20) was proposed.
format	article
author	Bahman Abdollahi Ahmad Najafidoust Ebrahim Abbasi Asl Mika Sillanpaa
author_facet	Bahman Abdollahi Ahmad Najafidoust Ebrahim Abbasi Asl Mika Sillanpaa
author_sort	Bahman Abdollahi
title	Fabrication of ZiF-8 metal organic framework (MOFs)-based CuO-ZnO photocatalyst with enhanced solar-light-driven property for degradation of organic dyes
title_short	Fabrication of ZiF-8 metal organic framework (MOFs)-based CuO-ZnO photocatalyst with enhanced solar-light-driven property for degradation of organic dyes
title_full	Fabrication of ZiF-8 metal organic framework (MOFs)-based CuO-ZnO photocatalyst with enhanced solar-light-driven property for degradation of organic dyes
title_fullStr	Fabrication of ZiF-8 metal organic framework (MOFs)-based CuO-ZnO photocatalyst with enhanced solar-light-driven property for degradation of organic dyes
title_full_unstemmed	Fabrication of ZiF-8 metal organic framework (MOFs)-based CuO-ZnO photocatalyst with enhanced solar-light-driven property for degradation of organic dyes
title_sort	fabrication of zif-8 metal organic framework (mofs)-based cuo-zno photocatalyst with enhanced solar-light-driven property for degradation of organic dyes
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/7936883a821448bda613b1f34e369250
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Fabrication of ZiF-8 metal organic framework (MOFs)-based CuO-ZnO photocatalyst with enhanced solar-light-driven property for degradation of organic dyes

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