Influence of temperature on the photocatalytic activity of sol-gel TiO 
                    2 films

Stefano Costacurta; Gabriele Dal Maso; Riccardo Gallo; Massimo Guglielmi; Giovanna Brusatin; Paolo Falcaro

doi:10.1021/am100149e

Influence of temperature on the photocatalytic activity of sol-gel TiO 2 films

Stefano Costacurta, Gabriele Dal Maso, Riccardo Gallo, Massimo Guglielmi, Giovanna Brusatin, Paolo Falcaro^*

^*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in einer Fachzeitschrift › Artikel › Begutachtung

Abstract

The photocatalytic activity of TiO ₂ films synthesized via the sol-gel process has been measured as a function of UV irradiation time and substrate temperature. Fourier-transform infrared spectroscopy has been used to address the chemical changes in stearic acid and block copolymer Pluronic F127 films deposited on the photocatalytic surface. When the temperature of the photocatalytic substrate was raised above 50 °C, the removal of stearic acid from the surface was strongly affected by a process involving evaporation, whereas Pluronic F127 revealed a superior stability. Our study shows that heat enhances the photocatalytic activity, suggesting the importance of an accurate temperature control in photocatalytic efficiency measurements.

Originalsprache	englisch
Seiten (von - bis)	1294-1298
Seitenumfang	5
Fachzeitschrift	ACS Applied Materials & Interfaces
Jahrgang	2
Ausgabenummer	5
DOIs	https://doi.org/10.1021/am100149e
Publikationsstatus	Veröffentlicht - 26 Mai 2010
Extern publiziert	Ja

ASJC Scopus subject areas

Allgemeine Materialwissenschaften

Zugriff auf Dokument

10.1021/am100149e

Andere Dateien und Links

http://www.scopus.com/inward/record.url?scp=77954974058&partnerID=8YFLogxK

Dieses zitieren

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abstract = "The photocatalytic activity of TiO 2 films synthesized via the sol-gel process has been measured as a function of UV irradiation time and substrate temperature. Fourier-transform infrared spectroscopy has been used to address the chemical changes in stearic acid and block copolymer Pluronic F127 films deposited on the photocatalytic surface. When the temperature of the photocatalytic substrate was raised above 50 °C, the removal of stearic acid from the surface was strongly affected by a process involving evaporation, whereas Pluronic F127 revealed a superior stability. Our study shows that heat enhances the photocatalytic activity, suggesting the importance of an accurate temperature control in photocatalytic efficiency measurements.",

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AU - Gallo, Riccardo

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AU - Brusatin, Giovanna

AU - Falcaro, Paolo

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N2 - The photocatalytic activity of TiO 2 films synthesized via the sol-gel process has been measured as a function of UV irradiation time and substrate temperature. Fourier-transform infrared spectroscopy has been used to address the chemical changes in stearic acid and block copolymer Pluronic F127 films deposited on the photocatalytic surface. When the temperature of the photocatalytic substrate was raised above 50 °C, the removal of stearic acid from the surface was strongly affected by a process involving evaporation, whereas Pluronic F127 revealed a superior stability. Our study shows that heat enhances the photocatalytic activity, suggesting the importance of an accurate temperature control in photocatalytic efficiency measurements.

AB - The photocatalytic activity of TiO 2 films synthesized via the sol-gel process has been measured as a function of UV irradiation time and substrate temperature. Fourier-transform infrared spectroscopy has been used to address the chemical changes in stearic acid and block copolymer Pluronic F127 films deposited on the photocatalytic surface. When the temperature of the photocatalytic substrate was raised above 50 °C, the removal of stearic acid from the surface was strongly affected by a process involving evaporation, whereas Pluronic F127 revealed a superior stability. Our study shows that heat enhances the photocatalytic activity, suggesting the importance of an accurate temperature control in photocatalytic efficiency measurements.

KW - Block copolymer

KW - Fourier transform infrared spectroscopy

KW - Photocatalysis

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KW - Stearic acid

KW - Titanium dioxide

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