| Abstrakt: |
The synthesis and characterization of novel p-type copper delafossite CuBO2 microstructures were performed using an eco-friendly and cost-effective hydrothermal process. This study aims to explore the potential of these microstructures for environmental applications, specifically in the photo-induced degradation of hazardous dyes in wastewater. Various growth times were investigated to determine their influence on the morphology and photocatalytic performance of the synthesized microstructures. The characterization was carried out using X-ray diffractometer (XRD), field emission scanning electron microscope (FESEM), and transmission electron microscope (TEM). The energy dispersive X-ray (EDX) studies and UV-Vis spectrophotometer were used to analyze the optical properties and compositional purity. The synthesized CuBO2 microstructures demonstrated significant photocatalytic activity, with the optimal sample synthesized in 2 h exhibiting a high degradation rate constant of 0.263 min−1, it was found that the materials synthesized for the ideal 2 h exhibited good photocatalytic activity. The results indicated that the photocatalytic activity of the CuBO₂ samples improved with increasing growth time, attributed to the enhanced crystallinity and larger surface area of the microstructures. Moreover, The findings suggest that these hierarchical microstructures have a strong potential for use in wastewater treatment applications. This work indicates that CuBO2 can be a versatile and effective material for environmental remediation, highlighting its importance in developing sustainable solutions for pollution control. Highlights: Synthesized CuBO₂ microstructures for photocatalytic degradation of hazardous Rhodamine B dye in wastewater. Conducted eco-friendly hydrothermal synthesis at different times (1, 2, 4 h), with characterization by XRD, FESEM, and EDX. Sample synthesized at 2 h showed the highest degradation rate (0.263 min⁻¹), attributed to superior crystallinity and morphology. Hydroxyl radicals (OH•) were identified as key active species in dye degradation under UV irradiation. CuBO₂ microstructures offer a promising, sustainable solution for water purification and pollution control. [ABSTRACT FROM AUTHOR] |
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