Y. Guerra
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View article: Enhanced Exciton Thermal Stability and Phonon Anharmonicity in Twisted Bilayer MoS<sub>2</sub>: Implications for Nano-Optoelectronic Devices
Enhanced Exciton Thermal Stability and Phonon Anharmonicity in Twisted Bilayer MoS<sub>2</sub>: Implications for Nano-Optoelectronic Devices Open
View article: Temperature- and Pressure-Dependent Photoluminescence Emission of Bulk GaSe<sub>0.5</sub>Te<sub>0.5</sub> Alloy
Temperature- and Pressure-Dependent Photoluminescence Emission of Bulk GaSe<sub>0.5</sub>Te<sub>0.5</sub> Alloy Open
View article: Cerium-Doped TiO<sub>2</sub> and Sepiolite Nanocomposites for Tetracycline Inactivation in Water Treatment
Cerium-Doped TiO<sub>2</sub> and Sepiolite Nanocomposites for Tetracycline Inactivation in Water Treatment Open
The increasing contamination of water resources by pharmaceutical compounds, such as Tetracycline (TC), has been a significant environmental concern due to the problems it can cause to humans and the environment. This study addressed the e…
View article: Phonon and exciton temperature-dependent properties of twisted MoS$_2$
Phonon and exciton temperature-dependent properties of twisted MoS$_2$ Open
In the present work, Raman and photoluminescence spectroscopies were used to study the dynamics of phonons and different excitons of MoS$_2$ bilayer under a rotation of 29$^{\circ}$ dependent of the temperature. The twisted bilayer (T-2L) …
View article: Temperature and power-dependent photoluminescence spectroscopy in suspended WSe<sub>2</sub> monolayer
Temperature and power-dependent photoluminescence spectroscopy in suspended WSe<sub>2</sub> monolayer Open
This work, the photoluminescence (PL) of a suspended monolayer of WSe 2 was investigated to avoid the substrate effect, and its evolution with temperature and excitation energy. Raman spectroscopy and PL demonstrated the monolayer characte…
View article: Effect of gallium and strontium salts on the characteristics and biological applications of Sr and Ga-modified titanate nanotubes
Effect of gallium and strontium salts on the characteristics and biological applications of Sr and Ga-modified titanate nanotubes Open
In this work, we report the synthesis of Na-TiNTs sodium titanate nanotubes prepared by the hydrothermal method in a highly alkaline subsequently modified by the substitution of Na+ ions present in the walls of the nanotubes by ions of Sr2…
View article: Study of Structural and Optical Properties of Titanate Nanotubes with Erbium under Heat Treatment in Different Atmospheres
Study of Structural and Optical Properties of Titanate Nanotubes with Erbium under Heat Treatment in Different Atmospheres Open
Titanate nanotubes were synthesized and subjected to an ion exchange reaction with erbium salt aqueous solution to obtain titanate nanotubes exchanged with erbium (3+) ions. In order to evaluate the effects of the thermal treatment atmosph…
View article: Photoresponsive Activity of the Zn0.94Er0.02Cr0.04O Compound with Hemisphere-like Structure Obtained by Co-Precipitation
Photoresponsive Activity of the Zn0.94Er0.02Cr0.04O Compound with Hemisphere-like Structure Obtained by Co-Precipitation Open
In this work, a ZnO hemisphere-like structure co-doped with Er and Cr was obtained by the co-precipitation method for photocatalytic applications. The dopant’s effect on the ZnO lattice was investigated using X-ray diffraction, Raman, phot…
View article: Magnetic transition induced by heat treatment in ZnO obtained by the sol-gel method
Magnetic transition induced by heat treatment in ZnO obtained by the sol-gel method Open
In this work, we have studied the effects of temperature on the magnetic phase transitions in ZnO nanoparticles obtained by sol-gel method.The X-ray diffraction (XRD) analysis have shown a single phase, belonging to the hexagonal structure…
View article: Amino-Functionalized Titanate Nanotubes: pH and Kinetic Study of a Promising Adsorbent for Acid Dye in Aqueous Solution
Amino-Functionalized Titanate Nanotubes: pH and Kinetic Study of a Promising Adsorbent for Acid Dye in Aqueous Solution Open
This work reports the functionalization of sodium titanate nanotubes with amine groups obtained from the reaction of titanate nanotubes with [3-(2-Aminoethylamino)propyl]trimethoxysilane, NaTiNT−2NH, and 3-[2-(2-Aminoethylamino)ethylamino]…
View article: Cr-Containing Rare-Earth Substituted Yttrium Iron Garnet Ferrites: Catalytic Properties in the Ethylbenzene Oxidation
Cr-Containing Rare-Earth Substituted Yttrium Iron Garnet Ferrites: Catalytic Properties in the Ethylbenzene Oxidation Open
A series of the Cr-containing erbium substituted yttrium iron garnet ferrites (ECYIG) was synthesized with distinct Cr amounts, herein referred to as Y3(Er0.02Fe5Cr1−x)O12, where x refers to Cr amounts from 0 to 0.05. The catalytic perform…