Titanium dioxide onto polyethylene for water decontamination
TiO2 aqueous suspensions under illumination of UV range (310-400 nm UV-A) have demonstrated a big potential for water decontamination and disinfection for human consume. Separation of TiO2 from the process is not easy. Supporting TiO2 to a proper substrate avoid the separation step after the photoca...
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todo:paper_12038407_v12_n1_p81_Ponce2023-10-03T16:08:57Z Titanium dioxide onto polyethylene for water decontamination Ponce, S. Carpio, E. Venero, J. Estrada, W. Rodríguez, J. Reche, C. Candal, R.J. Bacteria Disinfection Photocatalysis Polyethylene Titanium oxide Bacteria Biodegradation Decontamination Disinfection High resolution transmission electron microscopy Infrared spectroscopy Nanocatalysts Polyethylenes Suspensions (fluids) Titanium dioxide Titanium oxides Transmission electron microscopy X ray diffraction Economic decontamination Molecular absorption Morphology characterizations Photo catalytic degradation Photocatalytic treatment Physicochemical property Titanium dioxide nanoparticles Water decontamination Photocatalysis TiO2 aqueous suspensions under illumination of UV range (310-400 nm UV-A) have demonstrated a big potential for water decontamination and disinfection for human consume. Separation of TiO2 from the process is not easy. Supporting TiO2 to a proper substrate avoid the separation step after the photocatalytic treatment. This procedure results very interesting for the manufacturing of economic decontamination devices, which could be made with lightweight and flexible materials, bringing much versatility for the design of reactors for water decontamination. Based on those requirements, supporting TiO2 over polyethylene results ideal for that purposes due to its physicochemical properties, good transparency and low cost. In this work we evaluated different methods to support titanium dioxide nanoparticles onto polyethylene. The catalyst was characterized by X-ray diffraction and transmission electron microscopy (TEM) for structural analysis. TEMwas also used for morphology characterization. UV-Visible and infrared spectroscopy were used to study the inter band and molecular absorptions respectively. Material ability to perform photocatalytic degradation of rhodamine and bacteria (E-coli) in water, were studied. Obtained results suggest a very promissory applicability of the catalyst for water purification application in rural areas. © 2009 Science & Technology Network, Inc. Fil:Candal, R.J. 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_v12_n1_p81_Ponce |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Bacteria Disinfection Photocatalysis Polyethylene Titanium oxide Bacteria Biodegradation Decontamination Disinfection High resolution transmission electron microscopy Infrared spectroscopy Nanocatalysts Polyethylenes Suspensions (fluids) Titanium dioxide Titanium oxides Transmission electron microscopy X ray diffraction Economic decontamination Molecular absorption Morphology characterizations Photo catalytic degradation Photocatalytic treatment Physicochemical property Titanium dioxide nanoparticles Water decontamination Photocatalysis |
| spellingShingle |
Bacteria Disinfection Photocatalysis Polyethylene Titanium oxide Bacteria Biodegradation Decontamination Disinfection High resolution transmission electron microscopy Infrared spectroscopy Nanocatalysts Polyethylenes Suspensions (fluids) Titanium dioxide Titanium oxides Transmission electron microscopy X ray diffraction Economic decontamination Molecular absorption Morphology characterizations Photo catalytic degradation Photocatalytic treatment Physicochemical property Titanium dioxide nanoparticles Water decontamination Photocatalysis Ponce, S. Carpio, E. Venero, J. Estrada, W. Rodríguez, J. Reche, C. Candal, R.J. Titanium dioxide onto polyethylene for water decontamination |
| topic_facet |
Bacteria Disinfection Photocatalysis Polyethylene Titanium oxide Bacteria Biodegradation Decontamination Disinfection High resolution transmission electron microscopy Infrared spectroscopy Nanocatalysts Polyethylenes Suspensions (fluids) Titanium dioxide Titanium oxides Transmission electron microscopy X ray diffraction Economic decontamination Molecular absorption Morphology characterizations Photo catalytic degradation Photocatalytic treatment Physicochemical property Titanium dioxide nanoparticles Water decontamination Photocatalysis |
| description |
TiO2 aqueous suspensions under illumination of UV range (310-400 nm UV-A) have demonstrated a big potential for water decontamination and disinfection for human consume. Separation of TiO2 from the process is not easy. Supporting TiO2 to a proper substrate avoid the separation step after the photocatalytic treatment. This procedure results very interesting for the manufacturing of economic decontamination devices, which could be made with lightweight and flexible materials, bringing much versatility for the design of reactors for water decontamination. Based on those requirements, supporting TiO2 over polyethylene results ideal for that purposes due to its physicochemical properties, good transparency and low cost. In this work we evaluated different methods to support titanium dioxide nanoparticles onto polyethylene. The catalyst was characterized by X-ray diffraction and transmission electron microscopy (TEM) for structural analysis. TEMwas also used for morphology characterization. UV-Visible and infrared spectroscopy were used to study the inter band and molecular absorptions respectively. Material ability to perform photocatalytic degradation of rhodamine and bacteria (E-coli) in water, were studied. Obtained results suggest a very promissory applicability of the catalyst for water purification application in rural areas. © 2009 Science & Technology Network, Inc. |
| format |
JOUR |
| author |
Ponce, S. Carpio, E. Venero, J. Estrada, W. Rodríguez, J. Reche, C. Candal, R.J. |
| author_facet |
Ponce, S. Carpio, E. Venero, J. Estrada, W. Rodríguez, J. Reche, C. Candal, R.J. |
| author_sort |
Ponce, S. |
| title |
Titanium dioxide onto polyethylene for water decontamination |
| title_short |
Titanium dioxide onto polyethylene for water decontamination |
| title_full |
Titanium dioxide onto polyethylene for water decontamination |
| title_fullStr |
Titanium dioxide onto polyethylene for water decontamination |
| title_full_unstemmed |
Titanium dioxide onto polyethylene for water decontamination |
| title_sort |
titanium dioxide onto polyethylene for water decontamination |
| url |
http://hdl.handle.net/20.500.12110/paper_12038407_v12_n1_p81_Ponce |
| work_keys_str_mv |
AT ponces titaniumdioxideontopolyethyleneforwaterdecontamination AT carpioe titaniumdioxideontopolyethyleneforwaterdecontamination AT veneroj titaniumdioxideontopolyethyleneforwaterdecontamination AT estradaw titaniumdioxideontopolyethyleneforwaterdecontamination AT rodriguezj titaniumdioxideontopolyethyleneforwaterdecontamination AT rechec titaniumdioxideontopolyethyleneforwaterdecontamination AT candalrj titaniumdioxideontopolyethyleneforwaterdecontamination |
| _version_ |
1782029293741670400 |