Photocatalytic activities of Pd-loaded mesoporous TiO2 thin films

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

研究成果: 雜誌貢獻文章同行評審

100 引文 斯高帕斯(Scopus)

摘要

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.
原文英語
頁(從 - 到)492-497
頁數6
期刊Chemical Engineering Journal
152
發行號2-3
DOIs
出版狀態已發佈 - 10月 15 2009
對外發佈

ASJC Scopus subject areas

  • 化學工程 (全部)
  • 化學 (全部)
  • 工業與製造工程
  • 環境化學

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