Electrophoretic deposition of flower-like CaBiVMoO8 particles for the photocatalytic degradation of pharmaceutical pollutants

Publication date: January 2020Source: Colloid and Interface Science Communications, Volume 34Author(s): A. Vázquez, S. Obregón, D.B. Hernández-UrestiAbstractIn this work, it is reported for the first time the preparation of CaBiVMoO8 coatings by the electrophoretic deposition route. The material exhibits absorption in the visible light region with a bandgap energy of 2.49 eV. In addition, the conduction and valence potentials were estimated at 0.07 and 2.56 eV, respectively. Isopropanol-based suspensions of CaBiVMoO8 were used for the formation of the EPD coatings at 10, 12 and 14 V. The photocatalytic performance of the as-prepared coatings was examined by the degradation of the tetracycline antibiotic under UV–vis irradiation. The highest photoactivity was attained by the sample prepared at 12 V, which could be explained due to the more uniform deposition along the support under this applied voltage, increasing the formation of the photogenerated charge carriers though a better penetration and harvesting of the incident photons.Graphical abstract
Source: Colloids and Interface Science Communications - Category: Nanotechnology Source Type: research