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Título: | Microwave-induced fast crystallization of amorphous hierarchical anatase microspheres |
Autor: | Calatayud, David G. CSIC ORCID ; Jardiel, Teresa CSIC ORCID ; Peiteado, Marco CSIC ORCID ; Caballero Cuesta, Amador CSIC ORCID; Fernández Hevia, D. | Palabras clave: | TiO2 anatase Microwave heating Nanoparticles Hierarchical microspheres Photocatalysis |
Fecha de publicación: | 2014 | Editor: | Springer Nature | Citación: | Nanoscale Research Letters 9: 1- 5 (2014) | Resumen: | The fabrication of hierarchical anatase microspheres with potential photocatalytic properties eventually comprises a consolidation step in which a high degree of crystalline order is typically achieved through conventional electric heating treatments. This however entails a substantial reduction in the specific surface area and porosity of the powders, with the consequent deterioration in their photocatalytic response. Here, we have tested the employ of microwave heating as an alternative energy-saving sintering method to promote fast crystallization. The results obtained suggest that under the microwave radiation, the TiO2 hierarchical structures can effectively crystallize in a drastically reduced heating time, allowing the specific surface area and the porosity to be kept in the high values required for an improved photocatalytic performance. | Versión del editor: | http://dx.doi.org/10.1186/1556-276X-9-273 | URI: | http://hdl.handle.net/10261/211901 | DOI: | 10.1186/1556-276X-9-273 | Identificadores: | doi: 10.1186/1556-276X-9-273 issn: 1931-7573 e-issn: 1556-276X |
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Calatayud_Microwave_Nanoscale Research Letters_9_273_2014.pdf | 849,09 kB | Adobe PDF | Visualizar/Abrir |
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