The structure and photocatalytic properties of ceramic membranes synthesized on the basis of amorphous potassium polytitanate intercalated with nickel ions have been investigated. It is shown that the phase composition of the synthesized ceramics depends on the firing temperature: at 650 ° C it is formed from NiTiO 3 , TiO 2 and the residual potassium titanate amorphous phase; at 850 ° C - NiTiO 3 crystals, mainly represented in the surface layer of TiO 2 membranes, and a complex oxide of the composition K (Ti, Ni) O 16.5 , which has a golandite-like structure and is represented mainly in the structure of the inner layers of ceramics.
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