Synthesis and characterization of ZnO nanorod films on PET for photocatalytic disinfection of water
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...
Guardado en:
| Autores principales: | , , , , , , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_12038407_v18_n2_p246_Sanchez |
| Aporte de: |
| id |
todo:paper_12038407_v18_n2_p246_Sanchez |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_12038407_v18_n2_p246_Sanchez2023-10-03T16:08:57Z Synthesis and characterization of ZnO nanorod films on PET for photocatalytic disinfection of water Sanchez, L. Guz, L. García, P. Ponce, S. Goyanes, S. Marchi, M.C. Candal, R. Rodriguez, J. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Sanchez, L. Guz, L. García, P. Ponce, S. Goyanes, S. Marchi, M.C. Candal, R. Rodriguez, J. 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. |
| format |
JOUR |
| author |
Sanchez, L. Guz, L. García, P. Ponce, S. Goyanes, S. Marchi, M.C. Candal, R. Rodriguez, J. |
| author_facet |
Sanchez, L. Guz, L. García, P. Ponce, S. Goyanes, S. Marchi, M.C. Candal, R. Rodriguez, J. |
| author_sort |
Sanchez, L. |
| 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 |
| url |
http://hdl.handle.net/20.500.12110/paper_12038407_v18_n2_p246_Sanchez |
| work_keys_str_mv |
AT sanchezl synthesisandcharacterizationofznonanorodfilmsonpetforphotocatalyticdisinfectionofwater AT guzl synthesisandcharacterizationofznonanorodfilmsonpetforphotocatalyticdisinfectionofwater AT garciap synthesisandcharacterizationofznonanorodfilmsonpetforphotocatalyticdisinfectionofwater AT ponces synthesisandcharacterizationofznonanorodfilmsonpetforphotocatalyticdisinfectionofwater AT goyaness synthesisandcharacterizationofznonanorodfilmsonpetforphotocatalyticdisinfectionofwater AT marchimc synthesisandcharacterizationofznonanorodfilmsonpetforphotocatalyticdisinfectionofwater AT candalr synthesisandcharacterizationofznonanorodfilmsonpetforphotocatalyticdisinfectionofwater AT rodriguezj synthesisandcharacterizationofznonanorodfilmsonpetforphotocatalyticdisinfectionofwater |
| _version_ |
1782025081339248640 |