Synthesis and Characterization of TiO2/SiO2 Monoliths as Photocatalysts on Methanol Oxidation
Photocatalytic materials based on silica-titania (SiO2-TiO2) were synthesized by sol-gel and dip-coating method. TEOS and titanium butoxide were used as precursors of the silica-titania, respectively. A thin film with anatase phase was obtained on the surface of the support. The effect of variables...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2018/8478240 |
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| author | Rigoberto Regalado-Raya Rubí Romero-Romero Osmín Avilés-García Jaime Espino-Valencia |
| author_facet | Rigoberto Regalado-Raya Rubí Romero-Romero Osmín Avilés-García Jaime Espino-Valencia |
| author_sort | Rigoberto Regalado-Raya |
| collection | DOAJ |
| description | Photocatalytic materials based on silica-titania (SiO2-TiO2) were synthesized by sol-gel and dip-coating method. TEOS and titanium butoxide were used as precursors of the silica-titania, respectively. A thin film with anatase phase was obtained on the surface of the support. The effect of variables as dispersion mechanism, immersion time, and number of treatment cycles were studied. The materials were characterized using X-ray diffraction, scanning electron microscopy, energy dispersion scanning, and N2 adsorption-desorption. The highest crystallinity of TiO2 on silica, high specific surface area in TiO2-SiO2 materials, and thin film formation were obtained by using a stirring plate and minimum immersion time. The so synthesized catalyst allowed the production of formaldehyde from the photocatalyzed methanol oxidation in a packed-bed reactor. |
| format | Article |
| id | doaj-art-c8a5ccaa624b4f29a24175ce253bd97f |
| institution | OA Journals |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-c8a5ccaa624b4f29a24175ce253bd97f2025-08-20T02:19:40ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2018-01-01201810.1155/2018/84782408478240Synthesis and Characterization of TiO2/SiO2 Monoliths as Photocatalysts on Methanol OxidationRigoberto Regalado-Raya0Rubí Romero-Romero1Osmín Avilés-García2Jaime Espino-Valencia3Facultad de Ingeniería Química, Universidad Michoacana de San Nicolás de Hidalgo, Edif. V1, Ciudad Universitaria, 58060 Morelia, Michoacán, Mexicokm 14.5 Carretera Toluca-Atlacomulco, San Cayetano, Piedras Blancas, Centro Conjunto de Investigación en Química Sustentable UAEMéx-UNAM, Toluca, Estado de México, MexicoFacultad de Ingeniería Química, Universidad Michoacana de San Nicolás de Hidalgo, Edif. V1, Ciudad Universitaria, 58060 Morelia, Michoacán, MexicoFacultad de Ingeniería Química, Universidad Michoacana de San Nicolás de Hidalgo, Edif. V1, Ciudad Universitaria, 58060 Morelia, Michoacán, MexicoPhotocatalytic materials based on silica-titania (SiO2-TiO2) were synthesized by sol-gel and dip-coating method. TEOS and titanium butoxide were used as precursors of the silica-titania, respectively. A thin film with anatase phase was obtained on the surface of the support. The effect of variables as dispersion mechanism, immersion time, and number of treatment cycles were studied. The materials were characterized using X-ray diffraction, scanning electron microscopy, energy dispersion scanning, and N2 adsorption-desorption. The highest crystallinity of TiO2 on silica, high specific surface area in TiO2-SiO2 materials, and thin film formation were obtained by using a stirring plate and minimum immersion time. The so synthesized catalyst allowed the production of formaldehyde from the photocatalyzed methanol oxidation in a packed-bed reactor.http://dx.doi.org/10.1155/2018/8478240 |
| spellingShingle | Rigoberto Regalado-Raya Rubí Romero-Romero Osmín Avilés-García Jaime Espino-Valencia Synthesis and Characterization of TiO2/SiO2 Monoliths as Photocatalysts on Methanol Oxidation International Journal of Photoenergy |
| title | Synthesis and Characterization of TiO2/SiO2 Monoliths as Photocatalysts on Methanol Oxidation |
| title_full | Synthesis and Characterization of TiO2/SiO2 Monoliths as Photocatalysts on Methanol Oxidation |
| title_fullStr | Synthesis and Characterization of TiO2/SiO2 Monoliths as Photocatalysts on Methanol Oxidation |
| title_full_unstemmed | Synthesis and Characterization of TiO2/SiO2 Monoliths as Photocatalysts on Methanol Oxidation |
| title_short | Synthesis and Characterization of TiO2/SiO2 Monoliths as Photocatalysts on Methanol Oxidation |
| title_sort | synthesis and characterization of tio2 sio2 monoliths as photocatalysts on methanol oxidation |
| url | http://dx.doi.org/10.1155/2018/8478240 |
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