Influence of polymeric template impurities on photocatalytic properties of bulk macroporous TiO2 under visible light irradiation in the gas phase oxidation of acetone

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Abstract

Macroporous oxides are often prepared by template method with polymeric spheres, however, these polymeric spheres synthesized by emulsion polymerization using different initiators, most commonly contain S or/and N chemical residues. We have found that these template-originated impurities are not completely removed after thermal treatment of composites at ~ 500 °C, thus, influencing surface acidic properties and photocatalytic performance of the catalysts. The research is focused on the influence of different types of chemical residues left after incomplete polymer elimination on photocatalytic activity.

Original languageEnglish
Pages (from-to)53-67
Number of pages15
JournalReaction Kinetics, Mechanisms and Catalysis
Volume127
Issue number1
DOIs
Publication statusPublished - 15 Jun 2019

Keywords

  • Gas-phase oxidation
  • Macroporous TiO
  • Photocatalysis
  • Template-assisted method
  • Visible light
  • CARBON
  • FILMS
  • DOPED TIO2
  • Macroporous TiO2
  • OPAL
  • FABRICATION
  • OXIDES

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