Physical properties of TiO2 prepared by sol-gel under different pH conditions for photocatalysis



Título del documento: Physical properties of TiO2 prepared by sol-gel under different pH conditions for photocatalysis
Revista: Superficies y vacío
Base de datos: PERIÓDICA
Número de sistema: 000404816
ISSN: 1665-3521
Autors: 1
1
1
1
2
Institucions: 1Instituto Mexicano del Petróleo, México, Distrito Federal. México
2Universidad Autónoma Metropolitana, Departamento de Química, Iztapalapa, Distrito Federal. México
Any:
Període: Mar
Volum: 18
Número: 1
Paginació: 46-49
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico
Resumen en inglés We present the characterization of the physical properties of titanium dioxide powders prepared by the Sol-Gel method. We set the gelling pH to values of 3 (TiO2-A), 7 (TiO2-N) and 9 (TiO2-B) to observe its effect on the properties of the material. In the three cases we obtained nanoparticulated materials with particle sizes between 10 nm and 20 nm. The larger surface areas were obtained at pH 3, which is several times larger than the other synthesized materials. Furthermore, with the gelling condition pH 3, it was possible to synthesize pure anatase phase titania. We present some preliminary results on the test of photocatalytic activity of the synthesized materials in the reduction of nitric oxide
Disciplines Física y astronomía,
Ingeniería,
Química
Paraules clau: Física de materia condensada,
Ingeniería de materiales,
Química organometálica,
Dióxido de titanio,
Proceso sol-gel,
Nanopartículas,
Fotocatálisis,
Semiconductores
Keyword: Physics and astronomy,
Engineering,
Chemistry,
Condensed matter physics,
Materials engineering,
Organometallic chemistry,
Titanium dioxide,
Sol-gel process,
Nanoparticles,
Photocatalysis,
Semiconductors
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