Boron (B)- and vanadium (V)-doped TiO2 photocatalysts were synthesized using modified sol–gel reaction processes and characterized by X-ray diffraction (XRD), Raman spectroscopy and N2 physisorption (BET). The photocatalytic activities were evaluated by monitoring the degradation of methylene blue (MB). The results showed that the materials possess high surface area. The addition of B favored the transformation of anatase to rutile, while in the presence of V, anatase was the only phase detected. The MB degradation on V-doped TiO2 was significantly affected by the preparation method. In fact while the presence of V in the bulk did not influence strongly the photoreactivity under visible irradiation, an increase of surface V doping lead to improved photodegradation of MB. The degradation of MB dye indicated that the photocatalytic activities of TiO2 increased as the boron doping increased, with high conversion efficiency for 9 mol% B doping.

Photocatalytic activity of TiO2 doped with boron and vanadiumPhotocatalytic, / M., Bettinelli; V., Dallacasa; D., Falcomer; P., Fornasiero; V., Gombac; T., Montini; Romano', Laura; A., Speghini. - In: JOURNAL OF HAZARDOUS MATERIALS. - ISSN 0304-3894. - 146:(2007), pp. 529-534. [10.1016/j.jhazmat.2007.04.053]

Photocatalytic activity of TiO2 doped with boron and vanadiumPhotocatalytic,

ROMANO', Laura;
2007-01-01

Abstract

Boron (B)- and vanadium (V)-doped TiO2 photocatalysts were synthesized using modified sol–gel reaction processes and characterized by X-ray diffraction (XRD), Raman spectroscopy and N2 physisorption (BET). The photocatalytic activities were evaluated by monitoring the degradation of methylene blue (MB). The results showed that the materials possess high surface area. The addition of B favored the transformation of anatase to rutile, while in the presence of V, anatase was the only phase detected. The MB degradation on V-doped TiO2 was significantly affected by the preparation method. In fact while the presence of V in the bulk did not influence strongly the photoreactivity under visible irradiation, an increase of surface V doping lead to improved photodegradation of MB. The degradation of MB dye indicated that the photocatalytic activities of TiO2 increased as the boron doping increased, with high conversion efficiency for 9 mol% B doping.
2007
Photocatalytic activity of TiO2 doped with boron and vanadiumPhotocatalytic, / M., Bettinelli; V., Dallacasa; D., Falcomer; P., Fornasiero; V., Gombac; T., Montini; Romano', Laura; A., Speghini. - In: JOURNAL OF HAZARDOUS MATERIALS. - ISSN 0304-3894. - 146:(2007), pp. 529-534. [10.1016/j.jhazmat.2007.04.053]
File in questo prodotto:
File Dimensione Formato  
4. Photocatalytic +boron.pdf

non disponibili

Tipologia: Documento in Post-print
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 346.12 kB
Formato Adobe PDF
346.12 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
AbstractRomanòJourHazMat146-529.docx

non disponibili

Tipologia: Abstract
Licenza: Creative commons
Dimensione 12.55 kB
Formato Microsoft Word XML
12.55 kB Microsoft Word XML   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2366896
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact