Toghan, A.; Taha, K.K.; Modwi, A. TiO2–ZnO Composites Fabricated via Sonication Assisted with Gelatin for Potential Use in Rhodamine B Degradation. Journal of Materials Science: Materials in Electronics 2021, 32, 2471–2485, doi:10.1007/s10854-020-05013-y.
Toghan, A.; Taha, K.K.; Modwi, A. TiO2–ZnO Composites Fabricated via Sonication Assisted with Gelatin for Potential Use in Rhodamine B Degradation. Journal of Materials Science: Materials in Electronics 2021, 32, 2471–2485, doi:10.1007/s10854-020-05013-y.
Toghan, A.; Taha, K.K.; Modwi, A. TiO2–ZnO Composites Fabricated via Sonication Assisted with Gelatin for Potential Use in Rhodamine B Degradation. Journal of Materials Science: Materials in Electronics 2021, 32, 2471–2485, doi:10.1007/s10854-020-05013-y.
Toghan, A.; Taha, K.K.; Modwi, A. TiO2–ZnO Composites Fabricated via Sonication Assisted with Gelatin for Potential Use in Rhodamine B Degradation. Journal of Materials Science: Materials in Electronics 2021, 32, 2471–2485, doi:10.1007/s10854-020-05013-y.
Abstract
Herewith we report a facile synthesis of zinc oxide doped with (5, 10, 15, and 20 wt%) titanium oxide nanocomposites in gelatin under ultra-sonication. The X-ray diffraction (XRD) data revealed ZnO the formation in addition to a rutile phase TiO2. The ZnO phase size decreased, and the rutile TiO2 phase increased with a TiO2 loading increment. The scanning electron microscopy (SEM) displayed a combination of spherical and hexagonal particles with a 60 – 80 nm size distribution. The prepared nanostructures photocatalytic activity was assisted using Rhodamine B dye, where they showed enhanced photodegradation competence under visible light irradiation. The kinetics of photodegradation followed the first-order kinetics with the 20 % wt sample having the maximum activity. The mechanistic investigation revealed the dominance of h+ and •O2- species during the dye photodegradation. The results indicate the potential application of such gelatin stabilized nanostructures for dye illumination from aqueous solutions under sunlight.
Keywords
TiO2-ZnO photocatalysts; gelatin; William-Hall plots; Rhodamine B degradation
Subject
Chemistry and Materials Science, Materials Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
