Temperature matters: An infrared spectroscopic investigation on the photocatalytic efficiency of titania coatings

Paolo Falcaro, Gloria Zaccariello, Vanya Stoyanova, Alvise Benedetti, Stefano Costacurta

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

Titania is one of the most studied photocatalytic materials for self-cleaning applications. To maximize the photocatalytic efficiency, different strategies are currently under investigation, such as control of the nano- or microstructure, optimization of the crystalline phase and addition of doping agents. A parameter too often neglected is temperature, which dramatically affects the self-cleaning processes in thin titanium dioxide (TiO2) films. In this study, we prepared a titania coating using the sol-gel route. Stearic acid and a triblock copolymer (Pluronic F127) were used as model pollutants. A dedicated heating cell was used to precisely control the temperature. The infrared spectroscopy was used to follow the amount of residual pollutant agents within 60 minutes every 10 °C. The photocatalytic reaction rate was calculated for the stearic acid in the 25-60 °C range.

Originalspracheenglisch
Seiten (von - bis)1330-1337
Seitenumfang8
FachzeitschriftScience of advanced materials
Jahrgang6
Ausgabenummer7
DOIs
PublikationsstatusVeröffentlicht - 2014
Extern publiziertJa

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    ASJC Scopus subject areas

    • !!Materials Science(all)

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