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Titolo:
PREPARATION AND CHARACTERIZATION OF TIO2 PHOTOCATALYSTS SUPPORTED ON VARIOUS RIGID SUPPORTS (GLASS, QUARTZ AND STAINLESS-STEEL) - COMPARATIVE-STUDIES OF PHOTOCATALYTIC ACTIVITY IN WATER-PURIFICATION
Autore:
FERNANDEZ A; LASSALETTA G; JIMENEZ VM; JUSTO A; GONZALEZELIPE AR; HERRMANN JM; TAHIRI H; AITICHOU Y;
Indirizzi:
ECOLE CENT LYON,URA,CNRS PHOTOCATALYSE CATALYSE & ENVIRONM,BP 163 F-69131 ECULLY FRANCE UNIV SEVILLA,CSIC,INST CIENCIA MAT SEVILLA E-41080 SEVILLE SPAIN UNIV SEVILLA,DEPT QUIM INORGAN E-41080 SEVILLE SPAIN UNIV IBNOU ZOHR,DEPT CHIM PHYS AGADIR MOROCCO
Titolo Testata:
Applied catalysis. B, Environmental
fascicolo: 1-2, volume: 7, anno: 1995,
pagine: 49 - 63
SICI:
0926-3373(1995)7:1-2<49:PACOTP>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
TITANIUM-DIOXIDE; ELECTROPHORETIC DEPOSITION; HETEROGENEOUS PHOTOCATALYSIS; AQUEOUS SUSPENSIONS; POWDER TITANIA; THIN-FILMS; OXIDATION; PHOTODEGRADATION; PARTICLES; SIZE;
Keywords:
PREPARATION; CHARACTERIZATION; TIO2; PHOTOCATALYSTS; WATER PURIFICATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
A. Fernandez et al., "PREPARATION AND CHARACTERIZATION OF TIO2 PHOTOCATALYSTS SUPPORTED ON VARIOUS RIGID SUPPORTS (GLASS, QUARTZ AND STAINLESS-STEEL) - COMPARATIVE-STUDIES OF PHOTOCATALYTIC ACTIVITY IN WATER-PURIFICATION", Applied catalysis. B, Environmental, 7(1-2), 1995, pp. 49-63

Abstract

In the present study TiO2 has been supported on several rigid substrates. Deposition on glass and quartz was carried out by a dip coating procedure and the deposition on stainless steel by an electrophoretic deposition process. The resulting materials have been characterized by XPS, SEM/EDX, XRD and UV-vis absorption spectroscopy. The materials were then tested for the photocatalytic degradation of malic acid. For this reaction, the sample supported on quartz showed the highest catalytic activity. The photocatalytic activity pattern as a function of thenature of the support (fused silica, glass, stainless steel) followedthe decreasing order: TiO2/quartz> TiO2/steel approximate to TiO2/glass much greater than photolysis. This decline in activity has been correlated with the presence of cationic impurities (Si4+, Na+, CP3+, Fe3) in the layer as a consequence of the necessary thermal treatments to improve the cohesion of the titania layer and its adhesion onto the support.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 21:55:56