A5078642481- Advanced oxidation water treatment
- Water Quality Monitoring and Analysis
- Advanced Photocatalysis Techniques
- Environmental Sustainability and Education
- TiO2 Photocatalysis and Solar Cells
- Electrochemical Analysis and Applications
- Dye analysis and toxicity
- Dental materials and restorations
- Electrochemical sensors and biosensors
- Mesoporous Materials and Catalysis
- Copper-based nanomaterials and applications
- Geography and Environmental Studies
- Advanced ceramic materials synthesis
- Zeolite Catalysis and Synthesis
- Nanomaterials for catalytic reactions
- Catalytic Processes in Materials Science
- Dental Anxiety and Anesthesia Techniques
- Mechanical stress and fatigue analysis
- Innovative concrete reinforcement materials
- Pigment Synthesis and Properties
- Water Quality Monitoring Technologies
- Magnesium Oxide Properties and Applications
- Sustainable Supply Chain Management
- Silicone and Siloxane Chemistry
- Environmental Impact and Sustainability
Universidade Franciscana
2021-2025
Universidade Federal de Santa Maria
2016-2021
Ambiente Italia (Italy)
2021
A statistical optimization of tartrazine dye removal process from aqueous solution by heterogeneous photo–Fenton using Fe2O3-supported ZSM-5 catalyst was performed. support prepared chitin-templating technique to obtain a mesoporous structure. Thereafter, Fe2O3 supported on through wet impregnation method. This material characterized different techniques and posteriorly evaluated as for the solution. central composite rotational design coupled with response surface methodology approach used...
Mesoporous Fe2O3-supported ZSM-5 zeolites were prepared by carbon-templating and subsequently evaluated as photo-Fenton catalysts to degrade a dye used model heavy organic pollutant. The synthesis procedure of the mesoporous was performed employing nucleating gel carbon particles mesopores template. Thereafter, precursor salt iron oxide (Fe2O3) impregnated then calcined obtain final catalyst. For comparison purposes, conventional zeolite also prepared. results showed that amount...
In this work, cobalt ferrite (CoFe2O4) was synthesized by solvothermal route for application as a catalyst in the ozonation reaction decolorization and mineralization of melanoidin from aqueous solution. The structural properties CoFe2O4 sample were investigated X-ray diffraction (XRD), nitrogen adsorption-desorption isotherms, Fourier-transform infrared spectroscopy (FTIR), particle-size distribution, scanning electron microscopy (SEM) dispersive energy (EDS). Single-phase particles with...
Purpose To evaluate the influence of new air-abrasion powders with different silica concentrations (silica-coated aluminum oxide) and aging on bond strength between composite cement Y-TZP ceramic. Materials methods Ceramic slices (7 x 6.3 2 mm3) were randomly allocated into 8 groups (n = 20) considering surface treatments (SiC: silica-coated oxide particles; AlOx: 7% Si 20% Si: experimental consisting AlOx respectively) (baseline: 24 h at 37°C in water; aged: 90 days water + 12,000 thermal...
Resumo Este trabalho objetivou a preparação da zeólita ZSM-5 suportada com nanopartículas de óxido ferro para uso como catalisador na degradação um poluente orgânico em solução aquosa partir do processo foto-Fenton. A foi preparada usando gel nucleante indutor formação estrutura tipo MFI. Nanopartículas foram suportadas sobre através técnica impregnação incipiente. Além disso, preparadas fins comparação entre as atividades catalíticas reação Os materiais produzidos caracterizados por...
RESUMO Neste trabalho, ferrita de cobalto (CoFe2O4) foi sintetizada sobre aluminato magnésio (MgAl2O4) e zeólita ZSM-5 a atividade catalítica desses materiais na reação foto-Fenton visando decomposição um poluente orgânico em solução aquosa avaliada. Ferrita os suportes pela rota solvotérmica. Os magnéticos foram caracterizados por difração raios-X, isotermas adsorção/dessorção nitrogênio, microscopia eletrônica varredura espectroscopia energia dispersiva raios-X. catalisadores avaliados...
Abstract In this work, mesostructured ZSM-5 zeolite was prepared using chitin as a new template to produce mesoporosity. Different amounts of were used for the synthesis in order verify its influence on formation mesopores. All samples by conventional hydrothermal process. For comparison purposes, has also been synthesized without presence chitin. The characterized X-ray diffraction, scanning electron microscopy and N2 adsorption techniques. Experimental results showed that mesopores volume...
Globalization has increased production in various industries, including textiles, food, and pharmaceuticals. These industries employ different dyes production, leading to undesired discharge, which conventional treatment fails remove from the water. The present study aims synthesize, characterize, use pure catalysts (TiO2 Zn2SnO4) their compounds doped with CoFe2O4 together ozone (O3) for degradation of azo dye yellow tartrazine (TZ), evaluating process. For this characterization, N2...
No estado do Rio Grande Sul - RS, a utilizacao da geracao de energia eletrica partir celulas fotovoltaicas ainda e incipiente. Em comparacao ao potencial irradiância solar na Alemanha, um dos paises que mais investem radiacao solar, pode-se comprovar no RS disponibilidade elevada. Entretanto, importante esta diferenca seja quantificada. Assim, o objetivo, neste trabalho, foi comparar global Alemanha com aquela disponivel RS. Para isto, utilizada mensal incidente topo atmosfera nas latitudes...
Os problemas ambientais das indústrias estão principalmente relacionados com a produção de elevadas vazões águas residuais carregadas compostos orgânicos recalcitrantes, não biodegradáveis. O aprofundamento no conhecimento novas tecnologias, como o foto-Fenton heterogêneo, e busca por novos materiais catalíticos são necessárias para se alcançar métodos tratamento mais eficientes. Nesse sentido, esta pesquisa teve objetivo principal produzir espinélio cobaltita ferro (FeCo2O4) magnética uso...