Mesoporous anatase TiO 2 films: Use of Ti K XANES for the quantification of the nanocrystalline character and substrate effects in the photocatalysis behavior
Mesoporous titania thin films with accessible porosity and anatase structure were synthesized on conductive glass or silicon substrates. Ti K-edge XANES was used to assess Ti local coordination. Analysis of the pre-edge region permitted accurate quantification of the degree of crystalline nature of...
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2007
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v111_n29_p10886_Angelome http://hdl.handle.net/20.500.12110/paper_19327447_v111_n29_p10886_Angelome |
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paper:paper_19327447_v111_n29_p10886_Angelome2023-06-08T16:31:26Z Mesoporous anatase TiO 2 films: Use of Ti K XANES for the quantification of the nanocrystalline character and substrate effects in the photocatalysis behavior Mesoporous materials Nanocrystalline materials Photocatalysis Titanium dioxide X ray absorption near edge structure spectroscopy Conductive glass Conductive silicon Film crystallization Substrate effects Thin films Mesoporous titania thin films with accessible porosity and anatase structure were synthesized on conductive glass or silicon substrates. Ti K-edge XANES was used to assess Ti local coordination. Analysis of the pre-edge region permitted accurate quantification of the degree of crystalline nature of the inorganic walls upon thermal treatment. The substrate has a marked effect: film crystallization takes places at temperatures 100° C lower in the crystalline Si, with respect to conductive glass. Accordingly, remarkable photocatalytic properties are found in well-crystallized mesoporous titania deposited onto conductive silicon. © 2007 American Chemical Society. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v111_n29_p10886_Angelome http://hdl.handle.net/20.500.12110/paper_19327447_v111_n29_p10886_Angelome |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Mesoporous materials Nanocrystalline materials Photocatalysis Titanium dioxide X ray absorption near edge structure spectroscopy Conductive glass Conductive silicon Film crystallization Substrate effects Thin films |
| spellingShingle |
Mesoporous materials Nanocrystalline materials Photocatalysis Titanium dioxide X ray absorption near edge structure spectroscopy Conductive glass Conductive silicon Film crystallization Substrate effects Thin films Mesoporous anatase TiO 2 films: Use of Ti K XANES for the quantification of the nanocrystalline character and substrate effects in the photocatalysis behavior |
| topic_facet |
Mesoporous materials Nanocrystalline materials Photocatalysis Titanium dioxide X ray absorption near edge structure spectroscopy Conductive glass Conductive silicon Film crystallization Substrate effects Thin films |
| description |
Mesoporous titania thin films with accessible porosity and anatase structure were synthesized on conductive glass or silicon substrates. Ti K-edge XANES was used to assess Ti local coordination. Analysis of the pre-edge region permitted accurate quantification of the degree of crystalline nature of the inorganic walls upon thermal treatment. The substrate has a marked effect: film crystallization takes places at temperatures 100° C lower in the crystalline Si, with respect to conductive glass. Accordingly, remarkable photocatalytic properties are found in well-crystallized mesoporous titania deposited onto conductive silicon. © 2007 American Chemical Society. |
| title |
Mesoporous anatase TiO 2 films: Use of Ti K XANES for the quantification of the nanocrystalline character and substrate effects in the photocatalysis behavior |
| title_short |
Mesoporous anatase TiO 2 films: Use of Ti K XANES for the quantification of the nanocrystalline character and substrate effects in the photocatalysis behavior |
| title_full |
Mesoporous anatase TiO 2 films: Use of Ti K XANES for the quantification of the nanocrystalline character and substrate effects in the photocatalysis behavior |
| title_fullStr |
Mesoporous anatase TiO 2 films: Use of Ti K XANES for the quantification of the nanocrystalline character and substrate effects in the photocatalysis behavior |
| title_full_unstemmed |
Mesoporous anatase TiO 2 films: Use of Ti K XANES for the quantification of the nanocrystalline character and substrate effects in the photocatalysis behavior |
| title_sort |
mesoporous anatase tio 2 films: use of ti k xanes for the quantification of the nanocrystalline character and substrate effects in the photocatalysis behavior |
| publishDate |
2007 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v111_n29_p10886_Angelome http://hdl.handle.net/20.500.12110/paper_19327447_v111_n29_p10886_Angelome |
| _version_ |
1768545303395303424 |