Listar QFA_Articles por autoría "9736fd6e-0150-4c41-bd0d-3aae2b407792"
Mostrando ítems 1-9 de 9
-
Facet-dependent photocatalytic and antibacterial properties of a-Ag2WO4 crystals: combining experimental data and theoretical insights
Alvarez Roca, Roman; Sczancoski, Júlio César; Nogueira, Içamira C.; Fabbro, Maria T.; Alves, H. C.; Gracia, Lourdes; Santos, Luís P. S.; De Sousa, C. P.; Andres, Juan; Luz Jr, Geraldo; Longo, Elson; Cavalcante, Laécio Santos Royal Society of Chemistry (2015-05)In this paper, we have combined the various experimental results and first-principles calculations with a new and interesting discussion to explain the photocatalytic and antibacterial activities of α-Ag2WO4 crystals, which ... -
Identifying and rationalizing the morphological, structural, and optical properties of β-Ag2MoO4 microcrystals, and the formation process of Ag nanoparticles on their surfaces: combining experimental data and first-principles calculations
Fabbro, Maria T.; Saliby, Carla; Rios, Larissa R.; La Porta, Felipe A.; Gracia, Lourdes; Li, Maximo Siu; Andres, Juan; Santos, Luís P. S.; Longo, Elson IOP Publishing (2015-11)We present a combined theoretical and experimental study on the morphological, structural, and optical properties of β-Ag2MoO4 microcrystals. β-Ag2MoO4 samples were prepared by a co-precipitation method. The nucleation and ... -
In situ growth of Ag nanoparticles on alpha-Ag2WO4 under electron irradiation: probing the physical principles
San-Miguel, Miguel A.; da Silva, Edison; Zanetti, Sonia M.; Cilense, Mário; Fabbro, Maria T.; Gracia, Lourdes; Andres, Juan; Longo, Elson IOP Publishing Ltd (2016-04)Exploiting the plasmonic behavior of Ag nanoparticles grown on α-Ag2WO4 is a widely employed strategy to produce efficient photocatalysts, ozone sensors, and bactericides. However, a description of the atomic and electronic ... -
Structural and optical properties of ZnS/MgNb2O6 heterostructures
Santos, Luís P. S.; Cavalcante, Laécio Santos; Fabbro, Maria T.; Beltrán Mir, Héctor; Cordoncillo, Eloisa; Andres, Juan; Longo, Elson Elsevier (2015-03)In this letter, we report a simple and efficient synthetic procedure where the first step is a coprecipitation/calcination method used to obtain magnesium niobate MgNb2O6(MN) nanocrystals and in the second stage a microwave ... -
Synthesis and evaluation of α-Ag2WO4 as novel antifungal agent
Foggi, Camila Cristina; Fabbro, Maria T.; Santos, Luís P. S.; De Santana, Yuri V. B.; Vergani, Carlos; Machado Maciel, Ana Lúcia; Cordoncillo, Eloisa; Andres, Juan; Longo, Elson Elsevier (2017-04-16)Abstract Because of the need for new antifungal materials with greater potency, microcrystals of α-Ag2WO4, a complex metal oxide, have been synthetized by a simple co-precipitation method, and their antifungal activity ... -
Synthesis, antifungal evaluation and optical properties of silver molybdate microcrystals in different solvents: a combined experimental and theoretical study
Fabbro, Maria T.; Foggi, Camila Cristina; Santos, Luís P. S.; Gracia, Lourdes; Perrin, André; Perrin, Christiane; Vergani, Carlos; Machado Maciel, Ana Lúcia; Andres, Juan; Cordoncillo, Eloisa; Longo, Elson Royal Society of Chemistry (2016)In this study, we investigate the structure, antifungal activity, and optical properties of β-Ag2MoO4 using experimental and theoretical approaches. β-Ag2MoO4 samples were prepared by a co-precipitation method using ... -
Theoretical and Experimental Insight on Ag2CrO4 Microcrystals: Synthesis, Characterization, and Photoluminescence Properties
Silva, Gabriela S.; Gracia, Lourdes; Fabbro, Maria T.; Serejo Dos Santos, Luis P.; Beltrán Mir, Héctor; Cordoncillo, Eloisa; Longo, Elson; Andres, Juan American Chemical Society (2016)Ag2CrO4 microcrystals were synthesized by means of the coprecipitation method without the use of a surfactant under three different conditions. On the basis of the theoretical and experimental results, we describe the ... -
Tuning the Morphological, Optical, and Antimicrobial Properties of α-Ag2WO4 Microcrystals Using Different Solvents
Foggi, Camila Cristina; Oliveira, Regiane; Fabbro, Maria T.; Vergani, Carlos; Andres, Juan; Longo, Elson; Machado Maciel, Ana Lúcia (2017)New, effective antimicrobial agents are constantly being evaluated for addressing the increased prevalence of bacterial and fungal infections and emerging drug resistance. In this study, α- Ag2WO4 microcrystals were prepared ... -
Understanding the formation and growth of Ag nanoparticles on silver chromate induced by electron irradiation in electron microscope: A combined experimental and theoretical study
Fabbro, Maria T.; Gracia, Lourdes; Silva, Gabriela S.; Santos, Luís P. S.; Andres, Juan; Cordoncillo, Eloisa; Longo, Elson Elsevier (2016)Ag2CrO4 microcrystals were synthesized using the co-precipitation method. These microcrystals were characterized through X-ray diffraction (XRD) with Rietveld analysis, field-emission scanning electron microscopy (FE-SEM), ...