Degradación de cristal violeta por CWPO usando catalizadores de CuMn: efecto de la carga de la fase activa y promotor

The behavior of the degradation of crystal violet (CV) in water was evaluated by making two modifications to the catalyst constituted by mixed oxides of Cu-Mn with a stoichiometric ratio of 2: 1. The load variation of the active phase (0.10, 0.21 and 0.42 mmol / g) of Cu-Mn and the addition of a Cerio rare earth type promoter (1%, 3%) were carried out. and 5%) by different methods of incorporation (direct to Self-combustion, wet impregnation and impregnation with EDTA). The objective was to find the catalyst that presents the best physicochemical and catalytic properties at the time of degrading the CV dye by the method of Catalytic Oxidation with Hydrogen Peroxide (CWPO) *. In total, 12 solids were obtained, to which different analyzes were carried out in order to find the best among them; These analyzes were: Scanning Electron Microscopy (SEM), which provided information on morphology; Reduction to Temperature Program (TPR-H2), which allowed to know the redox properties; and X-ray diffraction (XRD), which identified the present phases and the particle size. Likewise, the catalytic activity of the solids was evaluated by Visible Spectrophotometry, where the CV degradation time was obtained; Total Organic Carbon (TOC), which includes all the organic carbon compounds present in the degradation process; and Gas / Mass Chromatography (CG-MS), to determine which compounds are present during and at the end of the reaction.

• Fecha de publicación: 2019
• Institución: Universidad de América
• Repositorio: Lumieres
• Idioma: spa
• OAI Identifier: oai:repository.uamerica.edu.co:20.500.11839/7401
• Acceso en línea: https://hdl.handle.net/20.500.11839/7401
• Palabra clave: Selectividad; Actividad catalítica; Fase activa; Selectivity; Catalytic activity; Active phase; Tesis y disertaciones académicas
• License: Atribución – No comercial