Preparation of TiO2 coatings on PET monoliths for the photocatalytic elimination of trichloroethylene in the gas phase
This paper presents the first data on the performance of polyethylene terephthalate (PET) monoliths as photocatalytic support. For this purpose, first a protective layer of SiO2 was applied to the polymer to prevent oxidation of the substrate, and subsequently the photoactive layer of TiO2 was depos...
Guardado en:
| Autor principal: | |
|---|---|
| Publicado: |
2006
|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09263373_v66_n3-4_p295_Sanchez http://hdl.handle.net/20.500.12110/paper_09263373_v66_n3-4_p295_Sanchez |
| Aporte de: |
| id |
paper:paper_09263373_v66_n3-4_p295_Sanchez |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_09263373_v66_n3-4_p295_Sanchez2023-06-08T15:51:35Z Preparation of TiO2 coatings on PET monoliths for the photocatalytic elimination of trichloroethylene in the gas phase Candal, Roberto Jorge Coating Monoliths PET Photocatalysis Polymers SEM TCE TiO2 Coatings Oxidation Photocatalysis Polyethylene terephthalates Scanning electron microscopy Synthesis (chemical) Gas phase Monoliths TCE Titanium dioxide This paper presents the first data on the performance of polyethylene terephthalate (PET) monoliths as photocatalytic support. For this purpose, first a protective layer of SiO2 was applied to the polymer to prevent oxidation of the substrate, and subsequently the photoactive layer of TiO2 was deposited on PET monoliths using the dip-coating technique. In order to increase the adherence of inorganic coatings, two different synthesis procedures were evaluated. One approach was based on reducing the surface tension of the SiO2 sol using a fluorinated surfactant to increment the PET wettability. The second approach consisted in modifying the PET surface with a layer of the polymer poly(diallyldimethylammonium) chloride (PDDA), which provides a positively charged surface for the fixation of the alkaline SiO2 sol. Both TiO2/SiO2 coated PET monoliths were assayed in a single-pass annular reactor for the destruction of trichloroethylene (TCE). The two coating procedures were compared in terms of homogeneity, durability and photocatalytic activity. © 2006 Elsevier B.V. All rights reserved. Fil:Candal, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09263373_v66_n3-4_p295_Sanchez http://hdl.handle.net/20.500.12110/paper_09263373_v66_n3-4_p295_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 |
Coating Monoliths PET Photocatalysis Polymers SEM TCE TiO2 Coatings Oxidation Photocatalysis Polyethylene terephthalates Scanning electron microscopy Synthesis (chemical) Gas phase Monoliths TCE Titanium dioxide |
| spellingShingle |
Coating Monoliths PET Photocatalysis Polymers SEM TCE TiO2 Coatings Oxidation Photocatalysis Polyethylene terephthalates Scanning electron microscopy Synthesis (chemical) Gas phase Monoliths TCE Titanium dioxide Candal, Roberto Jorge Preparation of TiO2 coatings on PET monoliths for the photocatalytic elimination of trichloroethylene in the gas phase |
| topic_facet |
Coating Monoliths PET Photocatalysis Polymers SEM TCE TiO2 Coatings Oxidation Photocatalysis Polyethylene terephthalates Scanning electron microscopy Synthesis (chemical) Gas phase Monoliths TCE Titanium dioxide |
| description |
This paper presents the first data on the performance of polyethylene terephthalate (PET) monoliths as photocatalytic support. For this purpose, first a protective layer of SiO2 was applied to the polymer to prevent oxidation of the substrate, and subsequently the photoactive layer of TiO2 was deposited on PET monoliths using the dip-coating technique. In order to increase the adherence of inorganic coatings, two different synthesis procedures were evaluated. One approach was based on reducing the surface tension of the SiO2 sol using a fluorinated surfactant to increment the PET wettability. The second approach consisted in modifying the PET surface with a layer of the polymer poly(diallyldimethylammonium) chloride (PDDA), which provides a positively charged surface for the fixation of the alkaline SiO2 sol. Both TiO2/SiO2 coated PET monoliths were assayed in a single-pass annular reactor for the destruction of trichloroethylene (TCE). The two coating procedures were compared in terms of homogeneity, durability and photocatalytic activity. © 2006 Elsevier B.V. All rights reserved. |
| author |
Candal, Roberto Jorge |
| author_facet |
Candal, Roberto Jorge |
| author_sort |
Candal, Roberto Jorge |
| title |
Preparation of TiO2 coatings on PET monoliths for the photocatalytic elimination of trichloroethylene in the gas phase |
| title_short |
Preparation of TiO2 coatings on PET monoliths for the photocatalytic elimination of trichloroethylene in the gas phase |
| title_full |
Preparation of TiO2 coatings on PET monoliths for the photocatalytic elimination of trichloroethylene in the gas phase |
| title_fullStr |
Preparation of TiO2 coatings on PET monoliths for the photocatalytic elimination of trichloroethylene in the gas phase |
| title_full_unstemmed |
Preparation of TiO2 coatings on PET monoliths for the photocatalytic elimination of trichloroethylene in the gas phase |
| title_sort |
preparation of tio2 coatings on pet monoliths for the photocatalytic elimination of trichloroethylene in the gas phase |
| publishDate |
2006 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09263373_v66_n3-4_p295_Sanchez http://hdl.handle.net/20.500.12110/paper_09263373_v66_n3-4_p295_Sanchez |
| work_keys_str_mv |
AT candalrobertojorge preparationoftio2coatingsonpetmonolithsforthephotocatalyticeliminationoftrichloroethyleneinthegasphase |
| _version_ |
1768543953021304832 |