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

Research output: Contribution to journalArticleResearchpeer-review

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.

Original languageEnglish
Pages (from-to)1294-1298
Number of pages5
JournalACS Applied Materials & Interfaces
Volume2
Issue number5
DOIs
Publication statusPublished - 26 May 2010
Externally publishedYes

Fingerprint

UCON 50-HB-5100
Poloxamer
Stearic acid
Sol-gels
Substrates
Temperature control
Sol-gel process
Block copolymers
Fourier transform infrared spectroscopy
Evaporation
Irradiation
Temperature
stearic acid

Keywords

  • Block copolymer
  • Fourier transform infrared spectroscopy
  • Photocatalysis
  • Pluronic F127
  • Stearic acid
  • Titanium dioxide

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Influence of temperature on the photocatalytic activity of sol-gel TiO 2 films. / Costacurta, Stefano; Maso, Gabriele Dal; Gallo, Riccardo; Guglielmi, Massimo; Brusatin, Giovanna; Falcaro, Paolo.

In: ACS Applied Materials & Interfaces, Vol. 2, No. 5, 26.05.2010, p. 1294-1298.

Research output: Contribution to journalArticleResearchpeer-review

Costacurta, Stefano ; Maso, Gabriele Dal ; Gallo, Riccardo ; Guglielmi, Massimo ; Brusatin, Giovanna ; Falcaro, Paolo. / Influence of temperature on the photocatalytic activity of sol-gel TiO 2 films. In: ACS Applied Materials & Interfaces. 2010 ; Vol. 2, No. 5. pp. 1294-1298.
@article{9d8be958b2ac49bf9f439637bb0286b3,
title = "Influence of temperature on the photocatalytic activity of sol-gel TiO 2 films",
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.",
keywords = "Block copolymer, Fourier transform infrared spectroscopy, Photocatalysis, Pluronic F127, Stearic acid, Titanium dioxide",
author = "Stefano Costacurta and Maso, {Gabriele Dal} and Riccardo Gallo and Massimo Guglielmi and Giovanna Brusatin and Paolo Falcaro",
year = "2010",
month = "5",
day = "26",
doi = "10.1021/am100149e",
language = "English",
volume = "2",
pages = "1294--1298",
journal = "ACS Applied Materials & Interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "5",

}

TY - JOUR

T1 - Influence of temperature on the photocatalytic activity of sol-gel TiO 2 films

AU - Costacurta, Stefano

AU - Maso, Gabriele Dal

AU - Gallo, Riccardo

AU - Guglielmi, Massimo

AU - Brusatin, Giovanna

AU - Falcaro, Paolo

PY - 2010/5/26

Y1 - 2010/5/26

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

KW - Pluronic F127

KW - Stearic acid

KW - Titanium dioxide

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

U2 - 10.1021/am100149e

DO - 10.1021/am100149e

M3 - Article

VL - 2

SP - 1294

EP - 1298

JO - ACS Applied Materials & Interfaces

JF - ACS Applied Materials & Interfaces

SN - 1944-8244

IS - 5

ER -