Ultrastable TiO2 foams derived macro-/meso-porous material and its photocatalytic activity

Yong Zhao, Xintong Zhang, Jin Zhai, Lei Jiang, Zhaoyue Liu, Shunsuke Nishimoto, Taketoshi Murakami, Akira Fujishima, Daoben Zhu

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Particles-stabilized TiO2 icecream-like foam was prepared by a versatile mechanical stirring method. It showed ultrastable state in air for several days. After calcining the wet foam, an open honeycomb-like structure with macro-/meso-porosity was formed. The photocatalytic characters of as-prepared macro-/meso-porous materials were detected, and the results indicated that the catalytic activity is increased about 120% compared to that of nanoparticles with acetaldehyde as a probe. Composite porous structure provided open pathways for high accessibility of molecular transport, increased surface area for more active center, and enhanced light-collection efficiency due to the inner light scattering effect, resulting in better photocatalytic activity.

Original languageEnglish
Pages (from-to)710-714
Number of pages5
JournalMicroporous and Mesoporous Materials
Volume116
Issue number1-3
DOIs
Publication statusPublished - Dec 1 2008
Externally publishedYes

Keywords

  • Composite channel
  • Hierarchical structure
  • Photocatalytic
  • TiO

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

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