98477 20211201113714.0 doi 10.1080/1536383X.2020.1713762 sideral 116250 ART-2020-116250 eng Dante, Roberto C. Solar light-driven reduction of crystal violet by a composite of g-C3N4, beta-Ag2Se, gama-Fe2O3 and graphite 2020 Access copy available to the general public Unrestricted In this work, a new g-C3N4-based Z-scheme with ¿-Fe2O3 and ß-Ag2Se both n-type semiconductors, and graphite to favor electron exchange is presented. The composite material was studied by XRD, FTIR, UV-Vis, TEM, XPS, TGA, DSC and TOF-SIMS, and the ability of this photocatalytic system to act as a photo-reductant was assessed using crystal violet (CV+) dye. Solar light driven photo-reduction of CV+ in the presence of tri-sodium citrate evidenced a synergistic enhancement of the activity of the composite toward reduction, with ~20 times higher conversion rates per unit of surface area than those of g-C3N4. Photo-oxidation experiments under Xe lamp irradiation in the presence of H2O2 also showed that the AgFeCN composite featured a higher activity (~8×) than g-C3N4. This Z-scheme may deserve further study as a photo-reductant to obtain hydrogen or hydrogenated compounds. Moreover, the use of CV+ may represent a facile procedure that can aid in the selection of new photocatalysts to be used in hydrogen production. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 1.869 2020 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 26 / 37 = 0.703 2020 Q3 T3 NANOSCIENCE & NANOTECHNOLOGY 89 / 106 = 0.84 2020 Q4 T3 CHEMISTRY, PHYSICAL 134 / 162 = 0.827 2020 Q4 T3 MATERIALS SCIENCE, MULTIDISCIPLINARY 254 / 333 = 0.763 2020 Q4 T3 0.354 2020 Atomic and Molecular Physics, and Optics 2020 Q3 Materials Science (miscellaneous) 2020 Q3 Physical and Theoretical Chemistry 2020 Q3 Organic Chemistry 2020 Q3 Nanoscience and Nanotechnology 2020 Q3 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Martín Ramos, Pablo Universidad de Zaragoza (orcid)0000-0003-2713-2786 Chamorro Posada, Pedro Rutto, Dario Vázquez Cabo, José Dante, Denisse G. Barberis, Riccardo Rubiños López, Óscar 5011 500 Universidad de Zaragoza Dpto. CC.Agrar.y Medio Natural Area Ingeniería Agroforestal 28, 7 (2020), 533-540 Fuller. Nanotub. Carbon Nanostruct. FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES 1536-383X 897723 http://zaguan.unizar.es/record/98477/files/texto_completo.pdf Postprint 2625401 http://zaguan.unizar.es/record/98477/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:98477 articulos driver 2021-12-01-11:34:42 ARTICLE