Influence of the composition of the BiPO$_4$–BiVO$_4$ system on the phase formation, morphology, and properties of nanocrystalline composites obtained under hydrothermal conditions

BiPO$_4$/BiVO$_4$ nanocrystalline composites were synthesized under hydrothermal conditions. The influence of the initial composition of the system on the phase state, the size of crystallites, and the morphology of the formed particles was determined. The photocatalytic activity of the nanocomposite was studied using the decomposition of methyl violet as an example.