Abstract

Photocatalytic decomposition of water has been studied by using TiO 2 (P25) and B/TiO 2 photocatalysts. Yield of the photocatalytic decomposition of water by TiO 2 (P25) depended on direction of light irradiation. The photocatalytic activity was about 10 3 times as high when the reaction cell was irradiated from the top as from the bottom. Modification of TiO 2 with boron oxides was found to be very effective for photocatalytic decomposition of water. TiO 2 modified with boron oxides exhibited high reactivity for the decomposition of water indifferently to the direction of light irradiation.

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