Structure and Optical Properties of Doped SiO2 Mesoporous Glasses
Monolithic mesoporous silica glasses were synthesized. The presence of Cu2+ and Fe3+ cations during the synthesis of sol-gel precursors leads to different morphologies and pore sizes. The materials are characterized via IR and Raman scattering spectra to detect surface groups and -Si-O-Si- rings (i...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2011/361347 |
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| author | G. Hernández-Padrón M. Hernández-Ortiz H. A. Durán-Muñoz M. García-Garduño V. M. Castaño |
| author_facet | G. Hernández-Padrón M. Hernández-Ortiz H. A. Durán-Muñoz M. García-Garduño V. M. Castaño |
| author_sort | G. Hernández-Padrón |
| collection | DOAJ |
| description | Monolithic mesoporous silica glasses were synthesized. The presence of Cu2+ and Fe3+ cations during the synthesis of sol-gel precursors leads to different morphologies and pore sizes. The materials are characterized via IR and Raman scattering spectra to detect surface groups and -Si-O-Si- rings (i.e., 3–6 Si atoms) and morphology is examined through electron microscopy. N2 sorption isotherms reveal details of the mesoporous structure of the materials, which are endowed with significantly large surface areas and pore volumes. Vapor percolation occurs in these samples because of a void arrangement consisting of pore bulges delimited by narrower necks. The optical characterization shows the luminescence spectrum and thermoluminescent behavior subjected to successive exposures of beta particles. |
| format | Article |
| id | doaj-art-e6f45d552d864712b1be26a078019c0a |
| institution | OA Journals |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-e6f45d552d864712b1be26a078019c0a2025-08-20T02:21:10ZengWileyJournal of Nanotechnology1687-95031687-95112011-01-01201110.1155/2011/361347361347Structure and Optical Properties of Doped SiO2 Mesoporous GlassesG. Hernández-Padrón0M. Hernández-Ortiz1H. A. Durán-Muñoz2M. García-Garduño3V. M. Castaño4Departamento de Nanotecnología, Centro de Física Aplicada y Tecnología Avanzada, UNAM Campus Juriquilla, 76230, QRO, MexicoPrograma de Posgrado en Ciencia de Materiales del Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, 83000, SON, MexicoPrograma de Posgrado en Ciencia de Materiales del Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, 83000, SON, MexicoDivisión de Estudios de Posgrado e Investigación, Facultad de Odontología, UNAM, 04510, D.F., MexicoDepartamento de Ingeniería Molecular de Materiales, Centro de Física Aplicada y Tecnología Avanzada, UNAM Campus Juriquilla, 76230, QRO, MexicoMonolithic mesoporous silica glasses were synthesized. The presence of Cu2+ and Fe3+ cations during the synthesis of sol-gel precursors leads to different morphologies and pore sizes. The materials are characterized via IR and Raman scattering spectra to detect surface groups and -Si-O-Si- rings (i.e., 3–6 Si atoms) and morphology is examined through electron microscopy. N2 sorption isotherms reveal details of the mesoporous structure of the materials, which are endowed with significantly large surface areas and pore volumes. Vapor percolation occurs in these samples because of a void arrangement consisting of pore bulges delimited by narrower necks. The optical characterization shows the luminescence spectrum and thermoluminescent behavior subjected to successive exposures of beta particles.http://dx.doi.org/10.1155/2011/361347 |
| spellingShingle | G. Hernández-Padrón M. Hernández-Ortiz H. A. Durán-Muñoz M. García-Garduño V. M. Castaño Structure and Optical Properties of Doped SiO2 Mesoporous Glasses Journal of Nanotechnology |
| title | Structure and Optical Properties of Doped SiO2 Mesoporous Glasses |
| title_full | Structure and Optical Properties of Doped SiO2 Mesoporous Glasses |
| title_fullStr | Structure and Optical Properties of Doped SiO2 Mesoporous Glasses |
| title_full_unstemmed | Structure and Optical Properties of Doped SiO2 Mesoporous Glasses |
| title_short | Structure and Optical Properties of Doped SiO2 Mesoporous Glasses |
| title_sort | structure and optical properties of doped sio2 mesoporous glasses |
| url | http://dx.doi.org/10.1155/2011/361347 |
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