English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/129265
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Photocatalytic removal of patent blue V dye on Au-TiO2 and Pt-TiO2 catalysts

AutorVaiano, Vincenzo; Iervolino, Giussepina; Sannino, D.; Murcia, J.J.; Hidalgo, M.C. ; Ciambelli, P.; Navío, José Antonio
Fecha de publicación2016
EditorElsevier
CitaciónApplied Catalysis B - Environmental, 188: 134-146 (2016)
ResumenIn this work it was studied the efficiency of a photocatalytic process for the removal of patent blue V. This dye is very difficult to remove by conventional treatments such as adsorption or coagulation therefore the photocatalytic process is a very interesting alternative for the removal this dye mainly because it does not require expensive oxidants and it can be carried out at mild temperatures and pressures. In this work it was tested the efficiency of Au-TiO2 and Pt-TiO2 photocatalysts in the Patent blue V removal. The Au-TiO2 catalysts were prepared by two different methods: chemical reduction and photochemical deposition; Pt-TiO2 catalysts were obtained only by photochemical deposition. In the synthesis of the catalysts prepared by photochemical deposition, it was evaluated the influence of some parameters, such as deposition time and the intensity of the light source over the physicochemical properties and photocatalytic activity of the materials obtained. An analysis of the effect of the catalyst dosage and initial patent blue V concentration over the dye degradation efficiency was also attempted. In general, it was observed that the presence of Au or Pt on TiO2 enhances the patent blue V photodegradation; it was found that noble metal particle size and distribution on TiO2 surface are important factors influencing the dye removal. The highest dye degradation was obtained over the Au-TiO2 catalyst prepared by photochemical deposition, using high light intensity and 15 min of deposition time during the synthesis. A discoloration and a total organic carbon (TOC) removal of 93 and 67% respectively, were obtained over this material after 180 min of UV irradiation. These values are higher than that the obtained on S-TiO2 (discoloration and TOC removal of about 25% and 3%, respectively).
Versión del editorhttp://dx.doi.org/10.1016/j.apcatb.2016.02.001
URIhttp://hdl.handle.net/10261/129265
DOI10.1016/j.apcatb.2016.02.001
Aparece en las colecciones: (ICMS) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Revised manuscript.pdf Embargado hasta 20 de febrero de 2018351,12 kBAdobe PDFVista previa
Visualizar/Abrir     Petición de una copia
Figures.pdf Embargado hasta 20 de febrero de 2018653,52 kBAdobe PDFVista previa
Visualizar/Abrir     Petición de una copia
Figures.pdf Embargado hasta 20 de febrero de 2018653,52 kBAdobe PDFVista previa
Visualizar/Abrir     Petición de una copia
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.