Publicaciones en Revistas arbitradas e indexadas
Permanent URI for this collectionhttps://saber.unimet.edu.ve/handle/20.500.14516/434
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Item Mecanismo coagulación- floculación, utilizando alumbre comercial y alumbre preparado a partir de material de reciclaje. Comparación de la eficiencia. Universidad Metropolitana(2022) Rodriguez, Rosa Maria; Confortti de Pérez, Nancy del Carmen; Pérez Hernández, Miguel Manuel; Educación; Departamento de Química; Facultad de CienciasItem Fotoelectroxidación de compuestos orgánicos con adsorción fuerte sobre TiO2: Formulación de un modelo cinético(2016) Carvajal, David; Vargas, Ronald; Borrás, Carlos; Mostany, Jorge; Scharifker, Benjamín; Gerencia Tecnológica y/o Tecnología; Departamento de Química; Facultad de CienciasItem Síntesis de alúminas de transición, a partir de material de reciclaje no ferroso(2015) Rodríguez, Rosa María; Torrealba, Jormaries; Gerencia Tecnológica y/o Tecnología; Departamento de Química; Facultad de CienciasItem Synthesis and characterizatio of transition aluminas from recycled scrap aluminium(2019) Rodríguez, Rosa María; Gutiérrez, Delia; Saab, Elvira; Labrador, Norberto; Hung, Xavier; Palma, Carlos; Gerencia Tecnológica y/o Tecnología; Departamento de Química; Facultad de CienciasThe aim of this study was to develop an alternative methodology for the synthesis of transition aluminas, in order to reduce ecological costs by using recycled metal scrap as raw material (cans of soft drinks) and generate a product with high added value. The synthesis technique employed yielded a precursor comprised of 55.4 % of bayerite, 41.2 % of boehmite, and ammonium salt, according the characterization performed with X-ray diffraction and quantification by the Rietveld method. The ammonium chloride salt present is not relevant for the process, since given its solubility in water, it could be eliminated by successive washing. Scanning electron microscopy evaluations showed the presence of agglomerates of particles between 50 and 300 μm. A bimodal grain sizes distribution was detected during the laser granulometric test. Thermogravimetric analysis of the precursor indicated a 40.6 % total weight loss at 1000 ºC. The heat treatments at 350 and 750 ºC of precipitates for 1, 2 and 4 h, produced various transition aluminas (γ, η, θ), which are products where value has been added and might have a potential use as binders in monolithic products, catalyst support, or additives for puzzolanic materials, among others.Item High field growth of semiconducting anodic oxide films on metal surfaces for photocatalytic application(2019) Vargas, Ronald; Carvajal, David; Galavís, Brunella; Maimone, Alberto; Madriz,Lorean; Scharifker, Benjamín; Gerencia Tecnológica y/o Tecnología; Departamento de Química; Facultad de CienciasItem Estudio del proceso de electrólisis para la producción de hidrógeno verde, a partir del agua de mar(2022) Rodriguez, Rosa María; Educación; Departamento de Química; Facultad de CienciasItem Chemical kinetics in solar to electrochemical energy conversion: the photocatalytic oxygen transfer reaction(2019) Vargas, Ronald; Carvajal, David; Madriz, Lorean; Scharifker, Benjamín; Gerencia Tecnológica y/o Tecnología; Departamento de Química; Facultad de CienciasItem Síntesis de zeolita tipo A amónica para la absorción de dióxido de carbono(2016) Parada, Javier; Rodríguez, Rosa María; Lujano, Juan; Gerencia Tecnológica y/o Tecnología; Departamento de Química; Facultad de CienciasItem Three-dimensional nucleation with diffusion controlled growth: A comparative study of electrochemical phase formation from aqueous and deep eutectic solvents(2016) Sebastián, Paula; Botello, Luis E.; Vallés, Elisa; Gómez. Elvira; Palomar-Pardavé, Manuel; Scharifker, Benjamín; Mostany, Jorge; Gerencia Tecnológica y/o Tecnología; Departamento de Química; Facultad de Ciencias