Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism

Cu doped InVO4 (xCu-InVO4 (x = 0.06–0.15 wt %) was synthesized by a facile one-pot hydrothermal method for the removal of methylene blue (MB) under LED light irradiation. The X-ray photoelectron spectroscopy (XPS) analysis indicated the coexistence of V5+ and V4+ species due to the O-deficient natur...

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Autores principales:	Mohamed Faisal, Anwar Iqbal, Farook Adam, R. Jothiramalingam
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	cu doping invo4 led methylene blue visible light Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/e836f6371bd847528668e536e8df9fe3
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spelling	oai:doaj.org-article:e836f6371bd847528668e536e8df9fe32021-11-06T11:16:25ZEffect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism0273-12231996-973210.2166/wst.2021.244https://doaj.org/article/e836f6371bd847528668e536e8df9fe32021-08-01T00:00:00Zhttp://wst.iwaponline.com/content/84/3/576https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Cu doped InVO4 (xCu-InVO4 (x = 0.06–0.15 wt %) was synthesized by a facile one-pot hydrothermal method for the removal of methylene blue (MB) under LED light irradiation. The X-ray photoelectron spectroscopy (XPS) analysis indicated the coexistence of V5+ and V4+ species due to the O-deficient nature of the xCu-InVO4. The synthesized photocatalysts displayed a morphology of spherical and square shaped particles (20–40 nm) and micro-sized rectangle rods with a length range of 100–200 μm. The xCu-InVO4 exhibited superior adsorption and photodegradation efficiency compared to pristine InVO4 and TiO2 due to the presence of O2 vacancies, V4+/V5+ species, and Cu dopant. The optimum reaction conditions were found to be 5 mg L−1 (MB concentration), pH 6, and 100 mg of photocatalyst mass with a removal efficiency and mineralization degree of 100% and 96.67%, respectively. The main active species responsible for the degradation of MB were •OH radicals and h+. Reusability studies indicated that the 0.13Cu-InVO4 was deactivated after a single cycle of photocatalytic reaction due to significant leaching of V4+ and Cu2+ species. HIGHLIGHTS xCu-InVO4 (x = 0.06 − 0.15 wt%) were synthesized via the hydrothermal method.; 0.13Cu-InVO4 active under the LED light irradiation for MB removal.; Optimized catalytic conditions displayed complete MB removal with >96% mineralization.; 0.13Cu-InVO4 deactivated after first use due to V4+ and Cu2+ species leaching.;Mohamed FaisalAnwar IqbalFarook AdamR. JothiramalingamIWA Publishingarticlecu dopinginvo4ledmethylene bluevisible lightEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 3, Pp 576-595 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cu doping invo4 led methylene blue visible light Environmental technology. Sanitary engineering TD1-1066
spellingShingle	cu doping invo4 led methylene blue visible light Environmental technology. Sanitary engineering TD1-1066 Mohamed Faisal Anwar Iqbal Farook Adam R. Jothiramalingam Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism
description	Cu doped InVO4 (xCu-InVO4 (x = 0.06–0.15 wt %) was synthesized by a facile one-pot hydrothermal method for the removal of methylene blue (MB) under LED light irradiation. The X-ray photoelectron spectroscopy (XPS) analysis indicated the coexistence of V5+ and V4+ species due to the O-deficient nature of the xCu-InVO4. The synthesized photocatalysts displayed a morphology of spherical and square shaped particles (20–40 nm) and micro-sized rectangle rods with a length range of 100–200 μm. The xCu-InVO4 exhibited superior adsorption and photodegradation efficiency compared to pristine InVO4 and TiO2 due to the presence of O2 vacancies, V4+/V5+ species, and Cu dopant. The optimum reaction conditions were found to be 5 mg L−1 (MB concentration), pH 6, and 100 mg of photocatalyst mass with a removal efficiency and mineralization degree of 100% and 96.67%, respectively. The main active species responsible for the degradation of MB were •OH radicals and h+. Reusability studies indicated that the 0.13Cu-InVO4 was deactivated after a single cycle of photocatalytic reaction due to significant leaching of V4+ and Cu2+ species. HIGHLIGHTS xCu-InVO4 (x = 0.06 − 0.15 wt%) were synthesized via the hydrothermal method.; 0.13Cu-InVO4 active under the LED light irradiation for MB removal.; Optimized catalytic conditions displayed complete MB removal with >96% mineralization.; 0.13Cu-InVO4 deactivated after first use due to V4+ and Cu2+ species leaching.;
format	article
author	Mohamed Faisal Anwar Iqbal Farook Adam R. Jothiramalingam
author_facet	Mohamed Faisal Anwar Iqbal Farook Adam R. Jothiramalingam
author_sort	Mohamed Faisal
title	Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism
title_short	Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism
title_full	Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism
title_fullStr	Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism
title_full_unstemmed	Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism
title_sort	effect of cu doping on the photocatalytic activity of invo4 for hazardous dye photodegradation under led light and its mechanism
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/e836f6371bd847528668e536e8df9fe3
work_keys_str_mv	AT mohamedfaisal effectofcudopingonthephotocatalyticactivityofinvo4forhazardousdyephotodegradationunderledlightanditsmechanism AT anwariqbal effectofcudopingonthephotocatalyticactivityofinvo4forhazardousdyephotodegradationunderledlightanditsmechanism AT farookadam effectofcudopingonthephotocatalyticactivityofinvo4forhazardousdyephotodegradationunderledlightanditsmechanism AT rjothiramalingam effectofcudopingonthephotocatalyticactivityofinvo4forhazardousdyephotodegradationunderledlightanditsmechanism
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Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism

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