A5047928774- Catalytic Processes in Materials Science
- Catalysis and Hydrodesulfurization Studies
- TiO2 Photocatalysis and Solar Cells
- Catalysts for Methane Reforming
- Advanced Photocatalysis Techniques
- Pigment Synthesis and Properties
- Adsorption and biosorption for pollutant removal
- Enzyme Catalysis and Immobilization
- Catalysis for Biomass Conversion
- Minerals Flotation and Separation Techniques
- Catalysis and Oxidation Reactions
- Dye analysis and toxicity
- Water Quality Monitoring and Analysis
- Electrocatalysts for Energy Conversion
- Biodiesel Production and Applications
- Mesoporous Materials and Catalysis
- Electrochemical sensors and biosensors
- Advanced oxidation water treatment
- Clay minerals and soil interactions
- Coagulation and Flocculation Studies
- Gas Sensing Nanomaterials and Sensors
- Pesticide and Herbicide Environmental Studies
- Analytical chemistry methods development
- Membrane Separation Technologies
- Advanced Nanomaterials in Catalysis
Universidade Estadual de Maringá
2016-2025
Universidade Tecnológica Federal do Paraná
2024-2025
Universidade Paulista
2013
European Union of Medical Specialists
2000-2008
Universidade Estadual de Campinas (UNICAMP)
2001
The effluent treatment from the packaging industry, particularly color removal, is strongly influenced by process interferences. High concentrations of dyes often make water reuse unfeasible. In this context, present work aims to study clarification dye used in industry photocatalytic process. Niobium was as a catalyst, which characterized different techniques. Before verifying catalytic activity industrial effluent, tests were performed with synthetic solutions. As characterization result,...
The production of sugar and alcohol is the main objective sugarcane processing industry. evaporation juice has a high energetic cost usually performed in multiple-effect evaporators. loss performance during operation due to fouling makes process more complex. In this study, modeling, simulation, validation, analysis were for industrial system (IES) composed falling film evaporator followed by three short vertical-tube evaporators arranged parallel. IES model was developed using commercial...
Abstract The effectiveness of chemical and thermal pretreatments on Moringa oleifera pods for the atrazine removal from water was investigated. untreated (MOP un ), chemically treated (MOPC), followed by thermally (MOPT) were physico‐chemically morphologically characterized elemental, pH ZPC , N 2 physisorption, FTIR, SEM analysis. effect modified significant in increasing surface porosity, favouring chemistry, improving biosorption capacity. Kinetics data best explained pseudo‐second order...
This study describes the application of TiO2, ZnO, TiO2–ZnO-based systems modified with 1.5 and 2.5% wt. Fe using impregnation method for maxilon blue 5G dye discoloration. Specific surface area (BET method), X-ray diffraction, thermogravimetric analysis, photoacoustic spectroscopy characterization techniques were used in this work. The presented results indicate that structure alterations, textural properties, nominal metallic charges, photocatalyst thermal treatment affected photocatalytic...
The objective was to evaluate the extract stability of hibiscus in different conditions and food application. Anthocyanins (TA), phenolic compounds (TP) color, at: 4 25 °C, presence or absence light, pH FTIR were evaluated. Gelatin developed with submitted sensory analysis. Light temperature factors affected TP TA throughout storage. Higher observed at ºC light (in relation respectively, 3% 26% losses this condition against 43% 39% °C light). Regarding pH, it that change absorbance color...
Abstract Hydrotreating of vegetable oils offers a green alternative to oil‐derived fuels and raw hydrocarbon materials, usually obtained from oil. In contrast sulfided catalysts, which contaminate the product with sulfur, carbide‐based catalysts are able produce clean hydrocarbons. A NiMo catalyst, supported on nanometric γ‐alumina was prepared, characterized by X‐ray crystallography, Nitrogen physisorption, scanning electron microscopy, energy‐dispersive spectroscopy, Raman spectroscopy....
Several studies have focused on the removal and recovery of precious metal ions from industrial wastewater due to their environmental economic importance. Adsorption bentonite clays has been shown possess a high potential for several ions. We herein investigated dynamic adsorption silver using fixed-bed column calcined clay called Verde-lodo as an adsorbent. A fluid study was performed evaluate system's metal-ion capacity (q u q t ), mass transfer zone percentage total according different...
In this work, commercial organophilic clay was used in adsorption studies for the liquid phase of Atrazine, Ametryn, Diuron, and 2-(2,4-dichlorophenoxy)acetic acid (2,4-D) a batch type system. The affinity study showed that is promising material to remove contamination from agricultural activities. adsorbent great removal capacity, especially Diuron because reached higher value than 98%. rate evaluated by pseudo-first-order, pseudo-second order, Elovich, intraparticle diffusion, external...
This study describes the experimental design and optimization of photocatalytic reaction using immobilized catalyst Fe/Nb2O5 in degradation Triclosan 2.8-DCDD. The techniques employed to characterize photocatalysts were: specific surface area, average pore volume, diameter, photo-acoustic spectroscopy (PAS), X-ray diffraction (XRD), scanning electron microscopy (SEM/EDS). parameters studied were pH, concentration, calcination temperature, nominal metallic charge. results indicated that...