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

  • Natalya SankovaEmail author
  • Viktoriya Semeykina
  • Dmitry Selishchev
  • Tatyana Glazneva
  • Ekaterina Parkhomchuk
  • Pavel Kolinko
Article
  • 32 Downloads

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.

Keywords

Macroporous TiO2 Photocatalysis Visible light Template-assisted method Gas-phase oxidation 

Notes

Acknowledgements

This work was conducted within the framework of the Budget Project AAAA-A17-117041710077-4 for Boreskov Institute of Catalysis.

Supplementary material

11144_2019_1539_MOESM1_ESM.docx (2.4 mb)
Electronic supplementary material 1 (DOCX 2440 kb)

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Novosibirsk State UniversityNovosibirskRussia
  2. 2.Boreskov Institute of Catalysis SB RASNovosibirskRussia

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