A5027507056- Catalytic Processes in Materials Science
- Catalysis and Hydrodesulfurization Studies
- Advanced Photocatalysis Techniques
- Catalysis for Biomass Conversion
- Iron oxide chemistry and applications
- Biodiesel Production and Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Nanomaterials for catalytic reactions
- Gas Sensing Nanomaterials and Sensors
- Advanced oxidation water treatment
- Asymmetric Hydrogenation and Catalysis
- Carbon Dioxide Capture Technologies
- Pigment Synthesis and Properties
- Chemical Looping and Thermochemical Processes
- TiO2 Photocatalysis and Solar Cells
- Copper-based nanomaterials and applications
- Microwave-Assisted Synthesis and Applications
- Luminescence Properties of Advanced Materials
- Catalysis and Oxidation Reactions
- Supercapacitor Materials and Fabrication
- Microbial Metabolic Engineering and Bioproduction
- Perovskite Materials and Applications
- Odor and Emission Control Technologies
- Adsorption and Cooling Systems
- Optical properties and cooling technologies in crystalline materials
Universidade Federal de Minas Gerais
2014-2024
Federal University of São João del-Rei
2019-2020
Universidade Federal do Rio Grande do Sul
2018
V-doped iron oxide exhibits remarkable catalytic activity for the oxidation of methylene blue with H<sub>2</sub>O<sub>2</sub>.
Aerobic training has a neuroprotective effect in people with Parkinson's disease. Recent evidence indicates that Nordic walking seems promising alternative due to positive outcomes functional mobility. However, the effects of compared free on static and balance parameters are still unknown. The aim this study was evaluate nine weeks balance. sample size 33 individuals eight dropouts, leaving 25 final (Nordic Walking, n=14, Free n=11). participants underwent two evaluations present randomized...
Although effective against epimastigotes (proliferative form) and of low cytotoxicity in mammals, the aryl-4-oxothiazolylhydrazones (ATZ) display only limited activity trypomastigotes (bloodstream Trypanosoma cruzi. Considering metal complexation approach with bioactive ligands as one possible strategy for improving biological efficacy ATZ, a set eight new ruthenium–ATZ complexes (RuCl2ATZCOD, COD is 1,5-cyclooctadiene) were prepared, chemically biologically characterized, including vitro...
Monoclinic BiVO 4 is recognized as a promising photoanode for water oxidation, but its relatively wide bandgap energy ( E g ≈2.5 eV) and poor charge transport limit the light absorption η abs ) separation sep efficiencies, thus resulting in low photocurrents. To solve these drawbacks, here × product has been decoupled by combining W‐doped V 2 O 5 rods ≈2.1 simultaneously increasing harvesting photoanodes under back‐side illumination. In this strategy, maximize hole throughout W‐BiVO film,...
Ni(OH)2 loaded on Ni-doped δ-FeOOH photocatalysts were prepared by a simple and low-cost one-step precipitation method. The effect of nanoparticles Ni2+ doping the photocatalytic hydrogen production rates in aqueous suspension was investigated. results showed that H2-production activity significantly enhanced with ions loading its surface. maximum obtained for sample 20 wt% Ni, which provided 5746 μmol h−1 g−1. This high is due to combined effects increased conductivity charge transfer...
In this paper an innovative and versatile design for a catalytic photoreactor is presented. The based on floating Polypropylene non-woven fabric canvas (NWF) impregnated with particles of mixture iron oxides oxyhydroxides adhered to the surface microfibers. was characterized different techniques including Mössbauer spectroscopy, Raman scattering, FTIR, SEM. UV-Vis spectroscopy showed that presented average gap 2.2 eV. activity efficiency photocatalyst tested by photodegradation rhodamine-B...
In this work; resistive moisture sensors were obtained by dip coating sulfonated polycarbonate (SPC) onto silver interdigitated electrodes. Commercial was with acetyl sulphate at two different sulfonation degrees corresponding to 9.0 and 18.0 mole %. Impedance spectroscopy used investigate the humidity sensing properties controlled relative (RH%) environments generated from standard saline solutions in range of 11–90 RH%. For highest sample; RH% investigated (11 90%); sensor impedance...
The conventional chemical methods to produce graphene using strong oxidizing agents toxic gases during synthesis; therefore, these do not meet the principles of green chemistry. In this work, an alternative top-down method for synthesis a few layers sheets has been produced by Fenton reaction- (a mixture Fe 2+ /H 2 O ) assisted exfoliation process in water graphite flakes as starting material. Based on X-ray diffraction data and Fourier transform infrared (FTIR), Raman spectroscopy,...
We report here a green methodology for the synthesis of imine from gas-phase oxidative coupling benzyl alcohol to aniline in continuous-flow system. These reactions were performed using LaMNO3 perovskites as heterogeneous catalysts. The catalytic performance these materials was 98% and remained stable 8 h reaction. prepared catalysts successfully regenerated reused five successive cycles. No organic solvents used this process, which represents an important advantage terms environment,...
Improvement of luminescent thermometers requires not only the search for high-sensitivity thermometric outputs, but also availability multiple parameters affording a combined and reliable response. We hereby detail first time luminescence Eu3+ in manganese tungstate (Eu3+:MnWO4) solids obtained by coprecipitation under ultraviolet excitation how this material provided an optical response from 77 K to 373 via emission spectra. Processing up five parameters, namely bandwidths, band positions,...
A synthetic niobia was modified by treatment with hydrogen peroxide to be used as a catalyst for converting glycerol into petrochemical compounds.The catalytic properties of niobium oxyhydroxide were obtained generating acidic and oxygenated groups (peroxo groups) on the solid surface.Compounds like ethers allyl alcohol obtained.A very active H 2 O -modified showed high activity oxidation dehydration 91% conversion using 46% selectivity in volatile phase.The product analyzed gas...
Iron oxide was dispersed in a floating matrix based on autoclaved porous brick. Under an incidence of solar radiation ˙OH radicals are generated by the photocatalytic process, completely oxidizing organic matter. This procedure makes proliferation dengue larva unfeasible. Additionally, have remarkable deleterious effect hatching A aegypti eggs. The predominant iron phase hematite (α-Fe2O3), as indicated Mossbauer spectroscopy. formation species demonstrated typical m/z values obtained via ESI-MS.