Synthesis and characterization of ZnO nanorod films on PET for photocatalytic disinfection of water

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ZnO nanorods (ZnO NRs) were grown on ZnO seeded polyethylene tert-phtalate (PET) substrates obtained from recycled soda bottles at low temperatures (90 °C) from Zn2+ precursors in alkaline aqueous solution. The ZnO seeds were deposited on the PET substrates by spray gel (SG) or dip coating (DC) from...

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Autores principales:	Goyanes, Silvia Nair, Marchi, María Claudia
Publicado:	2015
Materias:	Dip coating Nanorods Photocatalytic disinfection Spray gel ZnO Alkalinity Coatings Disinfection Escherichia coli II-VI semiconductors Sodium hydroxide Sols Solutions Substrates Surface treatment Anti-bacterial activity Chemical treatments E. coli disinfections Low temperatures Photocatalytic disinfections Synthesis and characterizations Zno seed layers Zinc oxide
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_12038407_v18_n2_p246_Sanchez http://hdl.handle.net/20.500.12110/paper_12038407_v18_n2_p246_Sanchez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_12038407_v18_n2_p246_Sanchez
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spelling	paper:paper_12038407_v18_n2_p246_Sanchez2023-06-08T16:10:00Z Synthesis and characterization of ZnO nanorod films on PET for photocatalytic disinfection of water Goyanes, Silvia Nair Marchi, María Claudia Dip coating Nanorods Photocatalytic disinfection Spray gel ZnO Alkalinity Coatings Disinfection Escherichia coli II-VI semiconductors Nanorods Sodium hydroxide Sols Solutions Substrates Surface treatment Anti-bacterial activity Chemical treatments Dip coating E. coli disinfections Low temperatures Photocatalytic disinfections Synthesis and characterizations Zno seed layers Zinc oxide ZnO nanorods (ZnO NRs) were grown on ZnO seeded polyethylene tert-phtalate (PET) substrates obtained from recycled soda bottles at low temperatures (90 °C) from Zn2+ precursors in alkaline aqueous solution. The ZnO seeds were deposited on the PET substrates by spray gel (SG) or dip coating (DC) from a ZnO methanol sol. In the case of SG, the PET substrate was heated at 90 °C during the spray process. By the other hand the ZnO seed layers obtained by dip coating were heated at 90 °C or 130 °C for 10 minutes among coatings. Before seeding two procedures were made on PET surface for improving seed adhesion: 1) PET surface was mechanically roughened with sand paper 1200. 2) PET surface was chemically treated with a solution of NaOH in ethanol. The relationship between the microstructure of the ZnO NRs films as function of the PET surface treatment and the photocatalytic antibacterial activity for E. Coli disinfection, was determined through a detailed characterization of the material. The highest photocatalytic antibacterial activity was performed by ZnO NRs films grown on seeds deposited by dip coating with 10 layers, 5 minutes of chemical treatment of PET surface and a thermal treatment at 130° C among coatings. With these films the population of viable E. Coli dropped more than seven orders, from 3x108 to 101 CFU. © 2015 Science & Technology Network, Inc. Fil:Goyanes, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Marchi, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_12038407_v18_n2_p246_Sanchez http://hdl.handle.net/20.500.12110/paper_12038407_v18_n2_p246_Sanchez
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Dip coating Nanorods Photocatalytic disinfection Spray gel ZnO Alkalinity Coatings Disinfection Escherichia coli II-VI semiconductors Nanorods Sodium hydroxide Sols Solutions Substrates Surface treatment Anti-bacterial activity Chemical treatments Dip coating E. coli disinfections Low temperatures Photocatalytic disinfections Synthesis and characterizations Zno seed layers Zinc oxide
spellingShingle	Dip coating Nanorods Photocatalytic disinfection Spray gel ZnO Alkalinity Coatings Disinfection Escherichia coli II-VI semiconductors Nanorods Sodium hydroxide Sols Solutions Substrates Surface treatment Anti-bacterial activity Chemical treatments Dip coating E. coli disinfections Low temperatures Photocatalytic disinfections Synthesis and characterizations Zno seed layers Zinc oxide Goyanes, Silvia Nair Marchi, María Claudia Synthesis and characterization of ZnO nanorod films on PET for photocatalytic disinfection of water
topic_facet	Dip coating Nanorods Photocatalytic disinfection Spray gel ZnO Alkalinity Coatings Disinfection Escherichia coli II-VI semiconductors Nanorods Sodium hydroxide Sols Solutions Substrates Surface treatment Anti-bacterial activity Chemical treatments Dip coating E. coli disinfections Low temperatures Photocatalytic disinfections Synthesis and characterizations Zno seed layers Zinc oxide
description	ZnO nanorods (ZnO NRs) were grown on ZnO seeded polyethylene tert-phtalate (PET) substrates obtained from recycled soda bottles at low temperatures (90 °C) from Zn2+ precursors in alkaline aqueous solution. The ZnO seeds were deposited on the PET substrates by spray gel (SG) or dip coating (DC) from a ZnO methanol sol. In the case of SG, the PET substrate was heated at 90 °C during the spray process. By the other hand the ZnO seed layers obtained by dip coating were heated at 90 °C or 130 °C for 10 minutes among coatings. Before seeding two procedures were made on PET surface for improving seed adhesion: 1) PET surface was mechanically roughened with sand paper 1200. 2) PET surface was chemically treated with a solution of NaOH in ethanol. The relationship between the microstructure of the ZnO NRs films as function of the PET surface treatment and the photocatalytic antibacterial activity for E. Coli disinfection, was determined through a detailed characterization of the material. The highest photocatalytic antibacterial activity was performed by ZnO NRs films grown on seeds deposited by dip coating with 10 layers, 5 minutes of chemical treatment of PET surface and a thermal treatment at 130° C among coatings. With these films the population of viable E. Coli dropped more than seven orders, from 3x108 to 101 CFU. © 2015 Science & Technology Network, Inc.
author	Goyanes, Silvia Nair Marchi, María Claudia
author_facet	Goyanes, Silvia Nair Marchi, María Claudia
author_sort	Goyanes, Silvia Nair
title	Synthesis and characterization of ZnO nanorod films on PET for photocatalytic disinfection of water
title_short	Synthesis and characterization of ZnO nanorod films on PET for photocatalytic disinfection of water
title_full	Synthesis and characterization of ZnO nanorod films on PET for photocatalytic disinfection of water
title_fullStr	Synthesis and characterization of ZnO nanorod films on PET for photocatalytic disinfection of water
title_full_unstemmed	Synthesis and characterization of ZnO nanorod films on PET for photocatalytic disinfection of water
title_sort	synthesis and characterization of zno nanorod films on pet for photocatalytic disinfection of water
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_12038407_v18_n2_p246_Sanchez http://hdl.handle.net/20.500.12110/paper_12038407_v18_n2_p246_Sanchez
work_keys_str_mv	AT goyanessilvianair synthesisandcharacterizationofznonanorodfilmsonpetforphotocatalyticdisinfectionofwater AT marchimariaclaudia synthesisandcharacterizationofznonanorodfilmsonpetforphotocatalyticdisinfectionofwater
_version_	1768545989139890176

Synthesis and characterization of ZnO nanorod films on PET for photocatalytic disinfection of water

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