Synthesis and characterization of gold nanoparticles on titanium dioxide for the catalytic photodegradation of 2,4-dichlorophenoxyacetic acid



Título del documento: Synthesis and characterization of gold nanoparticles on titanium dioxide for the catalytic photodegradation of 2,4-dichlorophenoxyacetic acid
Revista: Journal of applied research and technology
Base de datos: PERIÓDICA
Número de sistema: 000427628
ISSN: 1665-6423
Autors: 1
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1
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2
2
Institucions: 1Universidad Autónoma Metropolitana, Departamento de Ciencias Básicas, Azcapotzalco, Ciudad de México. México
2Universidad Autónoma Metropolitana, Área de Ecocxitálisis, Iztapalapa, Ciudad de México. México
Any:
Període: Oct
Volum: 16
Número: 5
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Aplicado, descriptivo
Resumen en inglés The photocatalytic degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) using a Au/TiO2 catalyst and ultraviolet (UV) light energy source (9 mW/cm2) discussed. Gold nanoparticles were synthesized by controlled urea reduction and deposited 011 titanium dioxide (TiO2) by the deposition-precipitation method. The average size of the nanoparticles was 6-8 nm. X-ray diffraction (XRD) characterization confirmed that TiO2 was present in the anatase phase, whereas the presence and particle size of gold were determined by transmission electrón microscopy (TEM). The results oí the degradation showed that the activity of TiO2 was improved when Au nanoparticles were present on the surface. The reactions were performed at atmospheric pressure and room temperature
Disciplines Ingeniería,
Química
Paraules clau: Ingeniería química,
Nanopartículas de oro,
Fotodegradación,
Acido 2,4-diclorofenoxiacético
Keyword: Chemical engineering,
Gold nanoparticles,
Photodegradation,
2,4-dichlorophenoxyacetic acid
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