Photocatalytic activities of Pd-loaded mesoporous TiO2 thin films

Chih Chieh Chan, Chung Chieh Chang, Chia Wen Hsu, Shih Kai Wang, Jerry Lin

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

In the present study, transparent nanocrystalline Pd-TiO2 films were prepared by a sol-gel spin coating technique. By introducing non-ionic surfactant Triton X-100 into the sol, transparent mesoporous Pd-TiO2 films were also prepared after calcination at 500 °C. To reveal the structural and morphological differences, the as-prepared TiO2 and Pd-TiO2 films were characterized by scanning electron microscope with energy dispersive spectrometer, thermal gravimetric analysis, X-ray diffraction and UV-vis spectrophotometer. In addition, the photocatalytic activities of these films were investigated by degrading methylene blue under UV and visible light irradiation. Sol-gel TiO2 film, processed without surfactant, exhibited a pore-free smooth surface. Mesoporous TiO2 and Pd-TiO2 films with pore sizes ranging from 4 to 20 nm were obtained when surfactant was introduced and removed after calcination. In this study, the mesoporous Pd-TiO2 film with molar ratio of Pd/Ti = 0.05 exhibited the best photocatalytic activity while specifically maintained good transparency.

Original languageEnglish
Pages (from-to)492-497
Number of pages6
JournalChemical Engineering Journal
Volume152
Issue number2-3
DOIs
Publication statusPublished - Oct 15 2009
Externally publishedYes

Fingerprint

Thin films
surfactant
Surface-Active Agents
Calcination
Sol-gels
Surface active agents
gel
Ultraviolet spectrophotometers
Coating techniques
Gravimetric analysis
Methylene Blue
Nonionic surfactants
Octoxynol
Spin coating
Polymethyl Methacrylate
Sols
transparency
Transparency
Pore size
Spectrometers

Keywords

  • Mesoporous
  • Pd-loaded
  • Photocatalytic
  • Spin coating
  • TiO thin film

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)
  • Industrial and Manufacturing Engineering
  • Environmental Chemistry

Cite this

Chan, C. C., Chang, C. C., Hsu, C. W., Wang, S. K., & Lin, J. (2009). Photocatalytic activities of Pd-loaded mesoporous TiO2 thin films. Chemical Engineering Journal, 152(2-3), 492-497. https://doi.org/10.1016/j.cej.2009.05.012

Photocatalytic activities of Pd-loaded mesoporous TiO2 thin films. / Chan, Chih Chieh; Chang, Chung Chieh; Hsu, Chia Wen; Wang, Shih Kai; Lin, Jerry.

In: Chemical Engineering Journal, Vol. 152, No. 2-3, 15.10.2009, p. 492-497.

Research output: Contribution to journalArticle

Chan, CC, Chang, CC, Hsu, CW, Wang, SK & Lin, J 2009, 'Photocatalytic activities of Pd-loaded mesoporous TiO2 thin films', Chemical Engineering Journal, vol. 152, no. 2-3, pp. 492-497. https://doi.org/10.1016/j.cej.2009.05.012
Chan, Chih Chieh ; Chang, Chung Chieh ; Hsu, Chia Wen ; Wang, Shih Kai ; Lin, Jerry. / Photocatalytic activities of Pd-loaded mesoporous TiO2 thin films. In: Chemical Engineering Journal. 2009 ; Vol. 152, No. 2-3. pp. 492-497.
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