Determining the Photoelectrical Behavior and Photocatalytic Activity of an h-YMnO3 New Type of Obelisk-like Perovskite in the Degradation of Malachite Green Dye

Autor: Miguel Ángel López-Alvarez, Jorge Manuel Silva-Jara, Jazmín Guadalupe Silva-Galindo, Martha Reyes-Becerril, Carlos Arnulfo Velázquez-Carriles, María Esther Macías-Rodríguez, Adriana Macaria Macías-Lamas, Mario Alberto García-Ramírez, Carlos Alberto López de Alba, César Alberto Reynoso-García
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Molecules, Vol 28, Iss 9, p 3932 (2023)
Druh dokumentu: article
ISSN: 1420-3049
06774393
DOI: 10.3390/molecules28093932
Popis: YMnO3 is a P-type semiconductor with a perovskite-type structure (ABO3). It presents two crystalline systems: rhombohedral and hexagonal, the latter being the most stable and studied. In the hexagonal system, Mn3+ ions are coordinated by five oxygen ions forming a trigonal bipyramid, and the Y3+ ions are coordinated by five oxygen ions. This arrangement favors its ferroelectric and ferromagnetic properties, which have been widely studied since 1963. However, applications based on their optical properties have yet to be explored. This work evaluates the photoelectric response and the photocatalytic activity of yttrium manganite in visible spectrum wavelengths. To conduct this, a rod-obelisk-shaped yttrium manganite with a reduced indirect bandgap value of 1.43 eV in its hexagonal phase was synthesized through the precipitation method. The synthesized yttrium manganite was elucidated by solid-state techniques, such as DRX, XPS, and UV-vis. It was non-toxic as shown by the 100% leukocyte viability of mice BALB/c.
Databáze: Directory of Open Access Journals
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