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Russian Journal of Applied Chemistry

, Volume 90, Issue 2, pp 186–192 | Cite as

Photocatalytic activity and physicochemical characteristics of modified potassium polytitanates in the reaction of decomposition of aqueous-alcoholic solutions

  • N. V. Arkhipova
  • A. A. Kuznetsova
Processes Using Various Catalyst Systems

Abstract

Study of the photocatalytic activity of nanomaterials based on potassium polytitanate modified with transition metal ions (Ni2+, Cr3+, Cu2+) demonstrated that the cation composition, morphology of photocatalyst particles, and their size strongly affect the photocatalytic activity. The rate of the photoinduced hydrogen evolution from the aqueous-alcoholic solution grows in the series of potassium polytitanates modified with Cu2+, Ni2+, Cr3+ ions, and that from pure water, for potassium polytitanates modified with Ni2+,Cr3+, Cu2+ ions. The capacity for intercalation of water into the interlayer space does not strongly affect the rate of the photoinduced hydrogen evolution. It was shown that potassium polytitanate modified with Cr3+ ions has the maximum quantum efficiency (30%).

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  1. 1.Yuri Gagarin State Technical University of SaratovSaratovRussia

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