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

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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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Authors and Affiliations

  1. Yuri Gagarin State Technical University of Saratov, Politekhnicheskaya ul. 77, Saratov, 410054, Russia

    N. V. Arkhipova & A. A. Kuznetsova

Authors
  1. N. V. Arkhipova
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  2. A. A. Kuznetsova
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Correspondence to N. V. Arkhipova.

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Original Russian Text © N.V. Arkhipova, A.A. Kuznetsova, 2017, published in Zhurnal Prikladnoi Khimii, 2017, Vol. 90, No. 2, pp. 164−170.

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Arkhipova, N.V., Kuznetsova, A.A. Photocatalytic activity and physicochemical characteristics of modified potassium polytitanates in the reaction of decomposition of aqueous-alcoholic solutions. Russ J Appl Chem 90, 186–192 (2017). https://doi.org/10.1134/S1070427217020045

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  • DOI: https://doi.org/10.1134/S1070427217020045

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