KNbO 3 films grown on two-dimensional Ca 2 Nb 3 O 10 nanosheets covering glass substrate.  (001) preferential orientation induced by subjacent nanosheets layer.  Similar microstructure as epitaxial film grown on (100)SrTiO 3 .

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KCa 2 Ta 3-x Nb x O 10 samples were synthesized by solid-state reaction and evaluated on the hydroxylation of terephthalic acid under UVC irradiation. Computational simulations via DFT were carried out in order to study their structural and electronic properties. Theoretical results show good agreement with experimental data, regarding lattice parameters and band-gap energy values and indicated that the photocatalytic performance for hydroxyl radicals production is directly related to the degree of octahedral distortions in these materials.