Enhanced photocatalytic performance of Zr(IV) doped ZnO nanocomposite for the degradation efficiency of different azo dyes

Semiconductor photocatalysts have drawn attention towards environmental applications due to their outstanding properties to induce photocatalytic oxidations i.e. complete degradation of contaminants over the surface of the nano-materials under UV light irradiation. In this work, Zr(IV) doped ZnO pho...

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Autores principales:	E. Jackcina Stobel Christy, Augustine Amalraj, Alagar Rajeswari, Anitha Pius
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2021
Materias:	Nanocomposite Photodegradation Semiconductor TOC Kinetics Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/d8ee04c361134433a1f408c5367fbe53
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spelling	oai:doaj.org-article:d8ee04c361134433a1f408c5367fbe532021-11-16T04:11:06ZEnhanced photocatalytic performance of Zr(IV) doped ZnO nanocomposite for the degradation efficiency of different azo dyes2590-182610.1016/j.enceco.2020.10.005https://doaj.org/article/d8ee04c361134433a1f408c5367fbe532021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2590182620300291https://doaj.org/toc/2590-1826Semiconductor photocatalysts have drawn attention towards environmental applications due to their outstanding properties to induce photocatalytic oxidations i.e. complete degradation of contaminants over the surface of the nano-materials under UV light irradiation. In this work, Zr(IV) doped ZnO photocatalyst was fabricated by the sol-gel technique with the different weight ratio of Zr(IV) loadings. In order to examine various influencing parameters viz., solution pH, irradiation time, catalyst dosage, initial concentration of dye molecules, the above studies were performed under UV light irradiations. The as-fabricated Zr(IV) doped ZnO nanocomposite was characterized by XRD, SEM with EDAX, TGA and FTIR techniques. Crystalline size and microstrain of 4% Zr(VI) doped ZnO nanocomposite were found to be 73.76 nm and 0.0634%, respectively. The photodegradation of three azo dyes namely Reactive Red 141 (RR 141), Reactive Yellow 105 (RY 105) and Reactive Orange 84 (RO 84) using 4% Zr(IV) doped ZnO nanocomposite was explored under UV light irradiation. The degradation efficiency of RR 141, RY 105 and RO 84 followed the pseudo-first-order kinetics according to the Langmuir-Hinshelwood model. Furthermore, the degraded products were analyzed using TOC. The reusability of as-prepared Zr(IV) doped ZnO nanocomposite was assessed.E. Jackcina Stobel ChristyAugustine AmalrajAlagar RajeswariAnitha PiusKeAi Communications Co., Ltd.articleNanocompositePhotodegradationSemiconductorTOCKineticsEnvironmental technology. Sanitary engineeringTD1-1066ENEnvironmental Chemistry and Ecotoxicology, Vol 3, Iss , Pp 31-41 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Nanocomposite Photodegradation Semiconductor TOC Kinetics Environmental technology. Sanitary engineering TD1-1066
spellingShingle	Nanocomposite Photodegradation Semiconductor TOC Kinetics Environmental technology. Sanitary engineering TD1-1066 E. Jackcina Stobel Christy Augustine Amalraj Alagar Rajeswari Anitha Pius Enhanced photocatalytic performance of Zr(IV) doped ZnO nanocomposite for the degradation efficiency of different azo dyes
description	Semiconductor photocatalysts have drawn attention towards environmental applications due to their outstanding properties to induce photocatalytic oxidations i.e. complete degradation of contaminants over the surface of the nano-materials under UV light irradiation. In this work, Zr(IV) doped ZnO photocatalyst was fabricated by the sol-gel technique with the different weight ratio of Zr(IV) loadings. In order to examine various influencing parameters viz., solution pH, irradiation time, catalyst dosage, initial concentration of dye molecules, the above studies were performed under UV light irradiations. The as-fabricated Zr(IV) doped ZnO nanocomposite was characterized by XRD, SEM with EDAX, TGA and FTIR techniques. Crystalline size and microstrain of 4% Zr(VI) doped ZnO nanocomposite were found to be 73.76 nm and 0.0634%, respectively. The photodegradation of three azo dyes namely Reactive Red 141 (RR 141), Reactive Yellow 105 (RY 105) and Reactive Orange 84 (RO 84) using 4% Zr(IV) doped ZnO nanocomposite was explored under UV light irradiation. The degradation efficiency of RR 141, RY 105 and RO 84 followed the pseudo-first-order kinetics according to the Langmuir-Hinshelwood model. Furthermore, the degraded products were analyzed using TOC. The reusability of as-prepared Zr(IV) doped ZnO nanocomposite was assessed.
format	article
author	E. Jackcina Stobel Christy Augustine Amalraj Alagar Rajeswari Anitha Pius
author_facet	E. Jackcina Stobel Christy Augustine Amalraj Alagar Rajeswari Anitha Pius
author_sort	E. Jackcina Stobel Christy
title	Enhanced photocatalytic performance of Zr(IV) doped ZnO nanocomposite for the degradation efficiency of different azo dyes
title_short	Enhanced photocatalytic performance of Zr(IV) doped ZnO nanocomposite for the degradation efficiency of different azo dyes
title_full	Enhanced photocatalytic performance of Zr(IV) doped ZnO nanocomposite for the degradation efficiency of different azo dyes
title_fullStr	Enhanced photocatalytic performance of Zr(IV) doped ZnO nanocomposite for the degradation efficiency of different azo dyes
title_full_unstemmed	Enhanced photocatalytic performance of Zr(IV) doped ZnO nanocomposite for the degradation efficiency of different azo dyes
title_sort	enhanced photocatalytic performance of zr(iv) doped zno nanocomposite for the degradation efficiency of different azo dyes
publisher	KeAi Communications Co., Ltd.
publishDate	2021
url	https://doaj.org/article/d8ee04c361134433a1f408c5367fbe53
work_keys_str_mv	AT ejackcinastobelchristy enhancedphotocatalyticperformanceofzrivdopedznonanocompositeforthedegradationefficiencyofdifferentazodyes AT augustineamalraj enhancedphotocatalyticperformanceofzrivdopedznonanocompositeforthedegradationefficiencyofdifferentazodyes AT alagarrajeswari enhancedphotocatalyticperformanceofzrivdopedznonanocompositeforthedegradationefficiencyofdifferentazodyes AT anithapius enhancedphotocatalyticperformanceofzrivdopedznonanocompositeforthedegradationefficiencyofdifferentazodyes
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Enhanced photocatalytic performance of Zr(IV) doped ZnO nanocomposite for the degradation efficiency of different azo dyes

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