Remediation of textile industry organic dye waste by photocatalysis using eggshell impregnated ZnO/CuO nanocomposite

Heterogeneous photocatalysis using nanocomposites is of great research interest in the treatment of industrial wastewater. The impregnated photocatalyst was produced by liquid state reaction of ZnO/CuO nanocomposite with extracted eggshells. The structure, functional group, metal composition, bandga...

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Autor principal:	Mekdes Gerawork
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	industrial waste irradiation nanocomposites ph photocatalysis Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/df0d7f01a05d40c89d7abeac25b0d1c5
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spelling	oai:doaj.org-article:df0d7f01a05d40c89d7abeac25b0d1c52021-11-06T11:07:45ZRemediation of textile industry organic dye waste by photocatalysis using eggshell impregnated ZnO/CuO nanocomposite0273-12231996-973210.2166/wst.2021.165https://doaj.org/article/df0d7f01a05d40c89d7abeac25b0d1c52021-06-01T00:00:00Zhttp://wst.iwaponline.com/content/83/11/2753https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Heterogeneous photocatalysis using nanocomposites is of great research interest in the treatment of industrial wastewater. The impregnated photocatalyst was produced by liquid state reaction of ZnO/CuO nanocomposite with extracted eggshells. The structure, functional group, metal composition, bandgap, and photocatalytic activity of the nanocomposites were characterized by using X-ray diffraction, Fourier-transform infrared spectroscopy, atomic absorption spectrometry, and UV–Vis spectroscopy, respectively, in the absence and presence of eggshells. Photocatalytic degradation activities of the nanocomposites under UV light irradiation have been tested for a real sewage sample taken from Debre Berhan Textile Industry. From the results, the optimized degradation efficiency of the dye was 97.95% with 0.4 g dose of the photocatalyst, 120 min irradiation time, 120 °C temperature, and pH of 6.7. The results revealed that eggshell impregnated nanocomposite had better catalytic activity than the naked nanocomposite. This is due to the highly porous structure of eggshell biomasses and their sorption characteristics. In conclusion, when nanocomposites are supported by eggshell biomasses, they are excellent photocatalysts and can minimize the contamination of organic dyes from textile effluents. HIGHLIGHTS Heterogeneous photocatalysis is a promising technology to remediate wastewater from industries.; Eggshell supported nanocomposites are effective for degradation of textile dyes under UV irradiation.; Waste eggshells can be recycled to support photocatalysts for wastewater treatment purposes.;Mekdes GeraworkIWA Publishingarticleindustrial wasteirradiationnanocompositesphphotocatalysisEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 11, Pp 2753-2761 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	industrial waste irradiation nanocomposites ph photocatalysis Environmental technology. Sanitary engineering TD1-1066
spellingShingle	industrial waste irradiation nanocomposites ph photocatalysis Environmental technology. Sanitary engineering TD1-1066 Mekdes Gerawork Remediation of textile industry organic dye waste by photocatalysis using eggshell impregnated ZnO/CuO nanocomposite
description	Heterogeneous photocatalysis using nanocomposites is of great research interest in the treatment of industrial wastewater. The impregnated photocatalyst was produced by liquid state reaction of ZnO/CuO nanocomposite with extracted eggshells. The structure, functional group, metal composition, bandgap, and photocatalytic activity of the nanocomposites were characterized by using X-ray diffraction, Fourier-transform infrared spectroscopy, atomic absorption spectrometry, and UV–Vis spectroscopy, respectively, in the absence and presence of eggshells. Photocatalytic degradation activities of the nanocomposites under UV light irradiation have been tested for a real sewage sample taken from Debre Berhan Textile Industry. From the results, the optimized degradation efficiency of the dye was 97.95% with 0.4 g dose of the photocatalyst, 120 min irradiation time, 120 °C temperature, and pH of 6.7. The results revealed that eggshell impregnated nanocomposite had better catalytic activity than the naked nanocomposite. This is due to the highly porous structure of eggshell biomasses and their sorption characteristics. In conclusion, when nanocomposites are supported by eggshell biomasses, they are excellent photocatalysts and can minimize the contamination of organic dyes from textile effluents. HIGHLIGHTS Heterogeneous photocatalysis is a promising technology to remediate wastewater from industries.; Eggshell supported nanocomposites are effective for degradation of textile dyes under UV irradiation.; Waste eggshells can be recycled to support photocatalysts for wastewater treatment purposes.;
format	article
author	Mekdes Gerawork
author_facet	Mekdes Gerawork
author_sort	Mekdes Gerawork
title	Remediation of textile industry organic dye waste by photocatalysis using eggshell impregnated ZnO/CuO nanocomposite
title_short	Remediation of textile industry organic dye waste by photocatalysis using eggshell impregnated ZnO/CuO nanocomposite
title_full	Remediation of textile industry organic dye waste by photocatalysis using eggshell impregnated ZnO/CuO nanocomposite
title_fullStr	Remediation of textile industry organic dye waste by photocatalysis using eggshell impregnated ZnO/CuO nanocomposite
title_full_unstemmed	Remediation of textile industry organic dye waste by photocatalysis using eggshell impregnated ZnO/CuO nanocomposite
title_sort	remediation of textile industry organic dye waste by photocatalysis using eggshell impregnated zno/cuo nanocomposite
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/df0d7f01a05d40c89d7abeac25b0d1c5
work_keys_str_mv	AT mekdesgerawork remediationoftextileindustryorganicdyewastebyphotocatalysisusingeggshellimpregnatedznocuonanocomposite
_version_	1718443764392919040

Remediation of textile industry organic dye waste by photocatalysis using eggshell impregnated ZnO/CuO nanocomposite

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