- Advanced Photocatalysis Techniques
- Pigment Synthesis and Properties
- Synthetic Organic Chemistry Methods
- TiO2 Photocatalysis and Solar Cells
- Recycled Aggregate Concrete Performance
- Bone Tissue Engineering Materials
- Luminescence Properties of Advanced Materials
- Catalytic Processes in Materials Science
- biodegradable polymer synthesis and properties
- Recycling and utilization of industrial and municipal waste in materials production
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Advanced Nanomaterials in Catalysis
- Catalysis and Hydrodesulfurization Studies
- Transition Metal Oxide Nanomaterials
- Graphene and Nanomaterials Applications
- Analytical Chemistry and Sensors
- Adsorption and biosorption for pollutant removal
- Corrosion Behavior and Inhibition
- Organometallic Complex Synthesis and Catalysis
- Nanomaterials for catalytic reactions
- Molecular Spectroscopy and Structure
- Biodiesel Production and Applications
- Polyoxometalates: Synthesis and Applications
- Copper-based nanomaterials and applications
Universidade Federal do Piauí
2016-2025
Centro Regional de Derechos Humanos y Justicia de Género, Corporación Humanas
2024
Gamaliel
2024
Quanta Computer (China)
2021
Instituto Federal do Maranhão
2021
Instituto Federal do Amazonas
2018
Universidad de Lima
2017
Natural (Czechia)
2017
University of Minho
2017
University of Concepción
2016
<p>As questões ambientais têm ocupado cada vez mais espaço nas legislações dos países, devido à grande geração de resíduos, oriundos principalmente, da indústria construção civil. Para qualquer país, não tem como haver crescimento, sem que a o acompanhe. Crescimento este, gera grandes impactos ambientais, desde extração recursos naturais para produção insumos, até são dispostos no meio ambiente nenhum controle. Este artigo expõe pesquisas retratam preocupação quanto resíduos...
Herein we describe ZnO microcrystals obtained<italic>via</italic>hydrothermal processing at 120, 150 and 180 °C, assisted by CTAB.
The design of particle size and morphology are a promising approach to investigating the properties exhibited by different types materials. In present study, silver phosphate microcrystals (Ag3PO4) were first time synthesized using hydrothermal solvothermal method combination solvents water/isopropyl alcohol (SP-IA), water/acetone (SP-AC), water/ammonium hydroxide (AP-AH), all in ratio 1:1 (v/v). materials structurally characterized X-ray diffraction (XRD), Rietveld refinement, Raman...
The catalytic esterification of levulinic acid (LA) to methyl levulinate (ML) was investigated using copper molybdate (Cu3(MoO4)2(OH)2) as a heterogeneous catalyst. catalyst, synthesized via chemical precipitation, exhibited monoclinic structure with self-assembled nanoplates forming spherical mesostructures. Structural characterization confirmed its high crystallinity, while textural analysis revealed BET surface area 70.55 m2 g−1 pore sizes in the nanometric range (1–6 nm). performance...
In this study we report the synthesis of silver tungstate microcrystals (α-Ag2WO4) by sonochemistry method (SC) at 65 °C and followed conventional hydrothermal (SC + HC) for 1, 6 12 h, 140 °C. The structural characterization XRD confirms alpha phase orthorhombic structure space group Pn2n, all synthesized microcrystals. All actives modes identified Raman spectroscopy were characteristic phase. optical band gap UV-Vis using diffuse reflectance 2.98, 3.0, 2.99 2.96 eV, SC, SC HC-1 HC-6 h HC-12...
In this paper, we report about hydrothermal synthesis, structural characterization and photocatalytic properties of beta-silver molybdate (β-Ag2MoO4) microcrystals obtained at different temperatures (100, 120, 140 160 °C) for 2 h. These crystals were characterized structurally using X-ray diffraction (XRD), fluorescence, Rietveld refinement, micro-Raman (m-Raman) Fourier-transform infrared (FT-IR) spectroscopies. Experimental theoretical band gap values correlated by ultraviolet–visible...
Copper molybdate nanoplates were synthesized by a sonochemical process at room temperature, which we report as simple and cost-effective route. Structural analysis of the material Rietveld method X-ray diffraction (XRD) data revealed lindgrenite Cu
A nanoheterostructure of titanate nanotubes decorated with anatase nanoparticles (TiNT@AnNP) was synthesized for the first time by a microwave-assisted hydrothermal one-pot reaction. Characterization X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy-dispersive high-resolution transmission selected-area and photoelectron spectroscopy showed highly crystalline nanometer-sized TiNT@AnNP. The TiNT@AnNP degraded an anionic dye (Remazol blue) more efficiently under...