Preparation of mesoporous Ag-TiO 2 thin films by a simple photocatalytic deposition method and their application as photocatalyst

Xinmei Zhao, Huijing Li, Hai Shui Wang*, Ziyi Zhong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Catalytic degradation of organic dye pollutants has attracted extensive attention due to their high toxicity to water resources. In this report, a simple photo-assisted deposition method was successfully employed for the fabrication of Ag-TiO 2 mesoporous thin film catalysts. The photocatalytic degradation of the typical organic dye Rhoda mine B (RB) under UV light irradiation on the catalysts was investigated and the degradation process was monitored by UV-vis spectroscopy. It was found that such mesoporous TiO 2 films exhibited good photocatalytic activity. Furthermore, the photocatalytic property of the TiO 2 films could be tuned by the deposition of Ag particles. At an optimal Ag content (near 4 atom% of Ag), an enhanced catalytic efficiency for RB photodegradation was achieved.

Original languageEnglish
Pages (from-to)984-988
Number of pages5
JournalScience of Advanced Materials
Volume3
Issue number6
DOIs
StatePublished - Dec 2011
Externally publishedYes

Keywords

  • Ag content
  • Mesoporous thin film
  • Photodegradation
  • Rhodamine B
  • TiO

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