Efficient removal of Orange G using Prussian Blue nanoparticles supported over alumina

Prussian Blue nanoparticles (PBNP) synthetized and adsorbed onto γ-Al2O3 spheres were prepared and characterized by transition and scanning electron microscopy (TEM, SEM), energy dispersive X-ray spectroscopy (EDS) and sorptometry. Adsorption and reaction runs were performed using aqueous solutions...

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Detalles Bibliográficos
Autores principales:	Cassanello Fernández, Miryam Celeste, Ayude, María Alejandra
Publicado:	2015
Materias:	Alumina Azo dye Heterogeneous Fenton-like oxidation Prussian Blue nanoparticles Azo dyes Heterogeneous fenton Orange G Prussian blue nanoparticles
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09205861_v240_nPA_p67_Doumic http://hdl.handle.net/20.500.12110/paper_09205861_v240_nPA_p67_Doumic
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09205861_v240_nPA_p67_Doumic
record_format	dspace
spelling	paper:paper_09205861_v240_nPA_p67_Doumic2023-06-08T15:50:13Z Efficient removal of Orange G using Prussian Blue nanoparticles supported over alumina Cassanello Fernández, Miryam Celeste Ayude, María Alejandra Alumina Azo dye Heterogeneous Fenton-like oxidation Prussian Blue nanoparticles Azo dyes Heterogeneous fenton Orange G Prussian blue nanoparticles Alumina Prussian Blue nanoparticles (PBNP) synthetized and adsorbed onto γ-Al2O3 spheres were prepared and characterized by transition and scanning electron microscopy (TEM, SEM), energy dispersive X-ray spectroscopy (EDS) and sorptometry. Adsorption and reaction runs were performed using aqueous solutions of a model azo dye Orange G. The adsorption capacity of the PBNP/γ-Al2O3 at 323 and 343 K at initial pH 3 and 6 was studied. The presence of PBNP increased the adsorption capacity of the support and this effect was more pronounced at initial pH 6. However, since the adsorbent life time was narrow and its regeneration quite difficult, PBNP/γ-Al2O3 was tested as a heterogeneous Fenton-like catalyst. The catalytic activity and stability for oxidation of Orange G were investigated in terms of discolouration, TOC and oxidant conversion. At the best operating condition studied (343 K and pH0 = 3), complete dye discolouration and 60% of mineralization were attained while reaction largely overcomes adsorption. At this temperature the catalyst activity and its characteristics remained almost invariable during 9 cycles of 5 h each and iron leaching occurred in low extent. © 2014 Elsevier B.V. All rights reserved. Fil:Cassanello, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ayude, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09205861_v240_nPA_p67_Doumic http://hdl.handle.net/20.500.12110/paper_09205861_v240_nPA_p67_Doumic
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Alumina Azo dye Heterogeneous Fenton-like oxidation Prussian Blue nanoparticles Azo dyes Heterogeneous fenton Orange G Prussian blue nanoparticles Alumina
spellingShingle	Alumina Azo dye Heterogeneous Fenton-like oxidation Prussian Blue nanoparticles Azo dyes Heterogeneous fenton Orange G Prussian blue nanoparticles Alumina Cassanello Fernández, Miryam Celeste Ayude, María Alejandra Efficient removal of Orange G using Prussian Blue nanoparticles supported over alumina
topic_facet	Alumina Azo dye Heterogeneous Fenton-like oxidation Prussian Blue nanoparticles Azo dyes Heterogeneous fenton Orange G Prussian blue nanoparticles Alumina
description	Prussian Blue nanoparticles (PBNP) synthetized and adsorbed onto γ-Al2O3 spheres were prepared and characterized by transition and scanning electron microscopy (TEM, SEM), energy dispersive X-ray spectroscopy (EDS) and sorptometry. Adsorption and reaction runs were performed using aqueous solutions of a model azo dye Orange G. The adsorption capacity of the PBNP/γ-Al2O3 at 323 and 343 K at initial pH 3 and 6 was studied. The presence of PBNP increased the adsorption capacity of the support and this effect was more pronounced at initial pH 6. However, since the adsorbent life time was narrow and its regeneration quite difficult, PBNP/γ-Al2O3 was tested as a heterogeneous Fenton-like catalyst. The catalytic activity and stability for oxidation of Orange G were investigated in terms of discolouration, TOC and oxidant conversion. At the best operating condition studied (343 K and pH0 = 3), complete dye discolouration and 60% of mineralization were attained while reaction largely overcomes adsorption. At this temperature the catalyst activity and its characteristics remained almost invariable during 9 cycles of 5 h each and iron leaching occurred in low extent. © 2014 Elsevier B.V. All rights reserved.
author	Cassanello Fernández, Miryam Celeste Ayude, María Alejandra
author_facet	Cassanello Fernández, Miryam Celeste Ayude, María Alejandra
author_sort	Cassanello Fernández, Miryam Celeste
title	Efficient removal of Orange G using Prussian Blue nanoparticles supported over alumina
title_short	Efficient removal of Orange G using Prussian Blue nanoparticles supported over alumina
title_full	Efficient removal of Orange G using Prussian Blue nanoparticles supported over alumina
title_fullStr	Efficient removal of Orange G using Prussian Blue nanoparticles supported over alumina
title_full_unstemmed	Efficient removal of Orange G using Prussian Blue nanoparticles supported over alumina
title_sort	efficient removal of orange g using prussian blue nanoparticles supported over alumina
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09205861_v240_nPA_p67_Doumic http://hdl.handle.net/20.500.12110/paper_09205861_v240_nPA_p67_Doumic
work_keys_str_mv	AT cassanellofernandezmiryamceleste efficientremovaloforangegusingprussianbluenanoparticlessupportedoveralumina AT ayudemariaalejandra efficientremovaloforangegusingprussianbluenanoparticlessupportedoveralumina
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Efficient removal of Orange G using Prussian Blue nanoparticles supported over alumina

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