2025-05-062025-05-062025-03-31FERREIRA, Renan Benjamim. Síntese e caracterização do vanadato de bismuto. Orientadora: Cleidilane Sena Costa. 2025. 53 f. Trabalho de Curso (Licenciatura em Física) – Faculdade de Ciências Exatas e Tecnologia, Campus Universitário de Abaetetuba, Universidade Federal do Pará, Abaetetuba, 2025. Disponível em: https://bdm.ufpa.br/handle/prefix/8076. Acesso em:.https://bdm.ufpa.br/handle/prefix/8076The synthesis and characterization of Bismuth Vanadate (BiVO₄) occurs through processes that require rigorous control of experimental conditions, and are traditionally conducted by chemical and physical methods. BiVO₄ has attracted increasing interest in the literature due to its photocatalytic and optoelectronic properties and its potential application in sensitized solar cells and photoelectrochemical sensors. To ensure the obtaining of a pure and optimized phase for such applications, advanced analytical techniques are employed, including X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), Raman Spectroscopy and Fourier Transform Infrared Spectroscopy (FTIR). These techniques allow the identification of the crystal structure, morphology and vibrational characteristics of the material, being essential for the correlation between the synthesis parameters and the final properties of the compound. The present study aims to obtain a pure monoclinic phase of BiVO₄, considered the most stable and efficient for several technological applications. For this purpose, a sample of bismuth oxide (Bi₂O₃) was synthesized by the sol-gel method. Subsequently, this sample was mixed and ground with vanadium oxide (V₂O₅) using the solid-state reaction technique, resulting in the sample called B1, varying the temperature and calcination time to evaluate its impact on the crystalline phase and morphology of the material. The results obtained by XRD confirmed that the sample presented the pure monoclinic phase of BiVO₄, with no detection of secondary phases, evidencing the effectiveness of the synthesis process. FT-IR and Raman analyses corroborated these results, revealing vibrational bands characteristic of monoclinic BiVO₄, compatible with the literature. The morphological characterization by SEM indicated that the sample presented distinct morphology, with partially spherical particles with an average size of 2,2 µm, demonstrating that the synthesis parameters significantly influence the microstructure of the material. It is concluded that the adopted synthesis route allowed the efficient production of monoclinic BiVO₄ in a single phase, validated by XRD, FT-IR and Raman. The variations in particle sizes highlight the relevance of precise control of the temperature and calcination time in modulating the structural and morphological properties of the material.Acesso AbertoBiVO4Síntese no estado sólidoCaracterização estruturalFase monoclínicaSolid-state synthesisStructural characterizationMonoclinic phaseCNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::FISICA DA MATERIA CONDENSADATrabalho de Curso - Graduação - MonografiaAttribution-NonCommercial-NoDerivatives 4.0 International