Comparison of NaNbO3 and NaTaO3 as the photocatalysts in the reaction of hydrogen generation

Zielińska, Beata; Kaleńczuk, Ryszard

doi:10.2478/v10026-010-0030-1

Abstract

The photocatalytic production of hydrogen over several chemical compounds based on sodium niobates and tantalates has been investigated. The photocatalysts have been prepared by an impregnation method of Nb₂O₅ and Ta₂O₅ in the aqueous solution of sodium hydroxide and then the calcination at the temperature range of 450 - 800°C. In this report, we present the study showing that of the catalysts explored, the highest photocatalytic activity was shown in a sample obtained at the temperature of 450°C and containing NaTaO₃ as a main phase.

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Comparison of NaNbO3 and NaTaO3 as the photocatalysts in the reaction of hydrogen generation

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