Influence of the composition of the BiPO4-BiVO4 system on the phase formation, morphology, and properties of nanocrystalline composites obtained under hydrothermal conditions

Abstract

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. KEYWORDS hydrothermal synthesis, phase formation, nanocrystals, bismuth orthophosphate, bismuth orthovanadate ACKNOWLEDGEMENTS X-ray diffraction studies were performed employing the equipment of the Engineering

Synthesis of strontium fluoride nanoparticles in a microreactor with intensely swirling flows

“…At the same time, the organization of such conditions that allow the reagents to be distributed at the molecular or ionic level with the necessary degree of uniformity of their distribution in micro-volumes is an obvious prerequisite for obtaining nanoparticles with specified characteristics. Previously, the possibility of synthesis of nanoscale particles of oxides and fluorides in microreactors with impinging jets [67][68][69][70] and in microreactors with intensely swirling flows [67,[71][72][73][74] was experimentally proved. The influence of specific energy dissipation rate on micromixing quality was demonstrated experimentally by means of iodide-iodate method widely used for microreactors with ultimate level of micromixing [74].…”