TY - JOUR AU - Sanchez Mendez, Miguel AU - Lemarchand, Alex AU - Traore, Mamadou AU - Ben Amar, Mounir AU - Perruchot, Christian AU - Nikravech, Mehrdad AU - Kanaev, Andrei PY - 2021/04/15 Y2 - 2024/03/19 TI - Preparation and Photocatalytic Activity of Coatings Based on Size-selective V-tio2 Nanoparticles JF - Chemical Engineering Transactions VL - 84 SP - 19-24 SE - Research Articles DO - 10.3303/CET2184004 UR - https://www.cetjournal.it/index.php/cet/article/view/CET2184004 AB - Titanium-vanadium oxo-alkoxy (VTOA) nanoparticles with vanadium addition (V:Ti) between 0 and 20 mol% were prepared via sol-gel method in a chemical reactor with ultra-rapid micromixing. A control of the nucleation and growth process in the reactor permitted synthesis of size-selective V-TiO2 nanoparticles, which were used for the nanocoatings deposition on glass beads. The activity of the prepared photocatalysts (after calcination at 450 °C) was studied by the degradation of methylene blue in aqueous solutions under UVA illumination. A steady decrease of the reaction rate was observed with an increase of the vanadium content. This effect was explained by the residual presence of non-crystallized oxide, which elimination requires further studies. ER -