Facile synthesis of ZnO/CuO/Ag2O ternary metal oxide nanocomposite for effective photodegradation of organic water pollutants

The current study is focused on fabrication of a ternary metal oxide nanocomposite (ZnO/CuO/Ag2O) as an efficient and superior photocatalyst by step-wise implanting of p-type CuO and Ag2O semiconductors onto an n-type semiconductor (ZnO) via a chemical method. The structural and textural characteris...

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Autores principales:	Parmeshwar Lal Meena, Krishna Poswal, Ajay Kumar Surela, Jitendra Kumar Saini
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	crystal violet photocatalytic performance rhodamine b ternary metal oxide nanocomposite Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/ed3aa53e50b04e94810ba31e2e075c8b
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spelling	oai:doaj.org-article:ed3aa53e50b04e94810ba31e2e075c8b2021-11-23T18:41:10ZFacile synthesis of ZnO/CuO/Ag2O ternary metal oxide nanocomposite for effective photodegradation of organic water pollutants0273-12231996-973210.2166/wst.2021.431https://doaj.org/article/ed3aa53e50b04e94810ba31e2e075c8b2021-11-01T00:00:00Zhttp://wst.iwaponline.com/content/84/9/2615https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732The current study is focused on fabrication of a ternary metal oxide nanocomposite (ZnO/CuO/Ag2O) as an efficient and superior photocatalyst by step-wise implanting of p-type CuO and Ag2O semiconductors onto an n-type semiconductor (ZnO) via a chemical method. The structural and textural characteristics of the manufactured samples were characterized by X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy combined with electron dispersive spectroscopy (FESEM-EDS) and UV–visible spectroscopy. The photocatalytic performance of the fabricated ternary nanocomposite was tested against the photocatalytic degradation of crystal violet (CV) and rhodamine B (RhB) organic dyes under solar light irradiation. The ternary nanocomposite demonstrated about 99.05% and 97.38% degradation efficiency toward CV and RhB dyes under solar light irradiation in a time period of 105 min. The calculated rate constants (k, min−1) for degradation under solar light over the ZnO/CuO/Ag2O nanocomposite were 4.26 and 3.61 times higher than the k value obtained over ZnO nanoparticles for CV and RhB dyes, respectively. The main reactive species taking part in the photodegradation processes were •OH and •O2− over ZnO/CuO/Ag2O photocatalysts under solar light illumination. Furthermore, the recycle experiments confirmed good reusability and photo-stability of the ZnO/CuO/Ag2O ternary nanocomposite. HIGHLIGHTS Ternary metal oxide (TMO) nanocomposite (ZnO/CuO/Ag2O) was prepared by step-wise deposition of p-type CuO and Ag2O semiconductors onto an n-type ZnO semiconductor.; As-prepared TMO has displayed enhanced photocatalytic activities against the CV (97.38%) and RhB (99.05%) dyes compared with binary ZnO/CuO metal oxide and ZnO nanoparticles under the solar light irradiation.;Parmeshwar Lal MeenaKrishna PoswalAjay Kumar SurelaJitendra Kumar SainiIWA Publishingarticlecrystal violetphotocatalytic performancerhodamine bternary metal oxide nanocompositeEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 9, Pp 2615-2634 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	crystal violet photocatalytic performance rhodamine b ternary metal oxide nanocomposite Environmental technology. Sanitary engineering TD1-1066
spellingShingle	crystal violet photocatalytic performance rhodamine b ternary metal oxide nanocomposite Environmental technology. Sanitary engineering TD1-1066 Parmeshwar Lal Meena Krishna Poswal Ajay Kumar Surela Jitendra Kumar Saini Facile synthesis of ZnO/CuO/Ag2O ternary metal oxide nanocomposite for effective photodegradation of organic water pollutants
description	The current study is focused on fabrication of a ternary metal oxide nanocomposite (ZnO/CuO/Ag2O) as an efficient and superior photocatalyst by step-wise implanting of p-type CuO and Ag2O semiconductors onto an n-type semiconductor (ZnO) via a chemical method. The structural and textural characteristics of the manufactured samples were characterized by X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy combined with electron dispersive spectroscopy (FESEM-EDS) and UV–visible spectroscopy. The photocatalytic performance of the fabricated ternary nanocomposite was tested against the photocatalytic degradation of crystal violet (CV) and rhodamine B (RhB) organic dyes under solar light irradiation. The ternary nanocomposite demonstrated about 99.05% and 97.38% degradation efficiency toward CV and RhB dyes under solar light irradiation in a time period of 105 min. The calculated rate constants (k, min−1) for degradation under solar light over the ZnO/CuO/Ag2O nanocomposite were 4.26 and 3.61 times higher than the k value obtained over ZnO nanoparticles for CV and RhB dyes, respectively. The main reactive species taking part in the photodegradation processes were •OH and •O2− over ZnO/CuO/Ag2O photocatalysts under solar light illumination. Furthermore, the recycle experiments confirmed good reusability and photo-stability of the ZnO/CuO/Ag2O ternary nanocomposite. HIGHLIGHTS Ternary metal oxide (TMO) nanocomposite (ZnO/CuO/Ag2O) was prepared by step-wise deposition of p-type CuO and Ag2O semiconductors onto an n-type ZnO semiconductor.; As-prepared TMO has displayed enhanced photocatalytic activities against the CV (97.38%) and RhB (99.05%) dyes compared with binary ZnO/CuO metal oxide and ZnO nanoparticles under the solar light irradiation.;
format	article
author	Parmeshwar Lal Meena Krishna Poswal Ajay Kumar Surela Jitendra Kumar Saini
author_facet	Parmeshwar Lal Meena Krishna Poswal Ajay Kumar Surela Jitendra Kumar Saini
author_sort	Parmeshwar Lal Meena
title	Facile synthesis of ZnO/CuO/Ag2O ternary metal oxide nanocomposite for effective photodegradation of organic water pollutants
title_short	Facile synthesis of ZnO/CuO/Ag2O ternary metal oxide nanocomposite for effective photodegradation of organic water pollutants
title_full	Facile synthesis of ZnO/CuO/Ag2O ternary metal oxide nanocomposite for effective photodegradation of organic water pollutants
title_fullStr	Facile synthesis of ZnO/CuO/Ag2O ternary metal oxide nanocomposite for effective photodegradation of organic water pollutants
title_full_unstemmed	Facile synthesis of ZnO/CuO/Ag2O ternary metal oxide nanocomposite for effective photodegradation of organic water pollutants
title_sort	facile synthesis of zno/cuo/ag2o ternary metal oxide nanocomposite for effective photodegradation of organic water pollutants
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/ed3aa53e50b04e94810ba31e2e075c8b
work_keys_str_mv	AT parmeshwarlalmeena facilesynthesisofznocuoag2oternarymetaloxidenanocompositeforeffectivephotodegradationoforganicwaterpollutants AT krishnaposwal facilesynthesisofznocuoag2oternarymetaloxidenanocompositeforeffectivephotodegradationoforganicwaterpollutants AT ajaykumarsurela facilesynthesisofznocuoag2oternarymetaloxidenanocompositeforeffectivephotodegradationoforganicwaterpollutants AT jitendrakumarsaini facilesynthesisofznocuoag2oternarymetaloxidenanocompositeforeffectivephotodegradationoforganicwaterpollutants
_version_	1718416187821391872

Facile synthesis of ZnO/CuO/Ag2O ternary metal oxide nanocomposite for effective photodegradation of organic water pollutants

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