Photocatalytic activity of layered niobates ANdNb₂O₇ (A = H, Li, Na, Rb, Cs)
by Alena A. Burovikhina; Ivan A. Rodionov; Mikhail V. Chislov; Dmitry A. Porotnikov; Irina A. Zvereva
International Journal of Nanotechnology (IJNT), Vol. 13, No. 1/2/3, 2016

Abstract: Layered perovskite-type oxides ANdNb₂O₇ (A = Rb, Cs) were synthesised by the ceramic technique, ANdNb₂O₇ (A = Li, Na) - by ion exchange reaction in molten nitrates, and HNdNb₂O₇ - by ion exchange in an acid solution. These compounds were characterised by powder X-ray diffraction, TG analysis, UV-Vis diffuse reflection spectroscopy and scanning electron microscopy. Intercalation of water molecules into the interlayer space was detected only for NaNdNb₂O₇. Analysis of the photocatalytic activity was performed for photoinduced hydrogen evolution reaction from aqueous isopropyl alcohol. The highest photocatalytic activity was observed for RbNdNb₂O₇.

Online publication date: Thu, 04-Feb-2016

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