A5051302943- Luminescence Properties of Advanced Materials
- Microwave Dielectric Ceramics Synthesis
- Gas Sensing Nanomaterials and Sensors
- Catalytic Processes in Materials Science
- Ferroelectric and Piezoelectric Materials
- Advanced Photocatalysis Techniques
- Solid-state spectroscopy and crystallography
- Crystal Structures and Properties
- Perovskite Materials and Applications
- Transition Metal Oxide Nanomaterials
- Radiation Detection and Scintillator Technologies
- Pigment Synthesis and Properties
- Porphyrin and Phthalocyanine Chemistry
- Lanthanide and Transition Metal Complexes
- Electronic and Structural Properties of Oxides
- Glass properties and applications
- ZnO doping and properties
- Microwave-Assisted Synthesis and Applications
- Polyoxometalates: Synthesis and Applications
- Inorganic Chemistry and Materials
- Polymer Nanocomposites and Properties
- Bee Products Chemical Analysis
- Mesoporous Materials and Catalysis
- Geography and Environmental Studies
- Catalysis and Hydrodesulfurization Studies
Universidade Federal de São Paulo
2013-2023
Departamento de Ciência e Tecnologia
2011-2017
Fundação de Apoio à Universidade Federal de São Paulo
2014-2015
Universidade Federal do Rio Grande do Norte
2005-2012
Universidade Estadual Paulista (Unesp)
2012
Universidade Federal de São Carlos
2005-2012
Universidade Federal do Rio de Janeiro
2006
CaWO4:Eu3+ microcrystals (with 0, 1, 2 and 4 mol% Eu3+) were synthesized by a co-precipitation (CP) method grown in microwave-assisted hydrothermal (MAH) system at 130 °C for 30 min. X-ray diffraction (XRD), Rietveld refinement, absorption near edge spectroscopy (XANES), Fourier-transform Raman (FT-Raman) infrared (FT-IR) indicated that all of the have scheelite-type tetragonal structure without deleterious phases. Structural refinement data employed to model [CaO8], [EuO8] [WO4] clusters....
CaMoO 4 nanopowders were prepared by the complex polymerization method. The materials characterized x-ray diffraction (XRD) and Fourier transform infrared, Raman, optical reflectance spectroscopies. data revealed presence of crystalline scheelite-type phase CaMoO4 absence additional phases. surface morphology was monitored high-resolution scanning electron microscopy (HR-SEM). HR-SEM XRD characterizations both a tendency for particle size to increase with rising treatment temperatures....
We present a study of the controlled synthesis and optical properties single-crystals Gd(OH)3, GdOOH Gd2O3 nanorods. In this work, Gd(OH)3 nanorods were synthesized by simple fast microwave-assisted hydrothermal method. This process combined with thermal decomposition oxidation as precursors enabled preparation single-crystalline structures well-defined morphology at low temperatures. The crystal structure dependence on was investigated. observed green shift effect photoluminescence (PL)...
Crystalline molybdate thin films were prepared by the complex polymerization method. The AMoO4(A = Ca, Sr, Ba) deposited onto Si wafers spinning technique. Mo–O bond in AMoO4structure was confirmed FTIR spectra. X-ray diffraction revealed presence of crystalline scheelite-type phase. mass, size, and basicity A2+cations found to be dependent on intrinsic characteristics materials. grain size increased following order: CaMoO4 < SrMoO4 BaMoO4. emission band wavelength detected at around 576 nm....