Pulsed laser ablation-mediated facile fabrication of MoO3/TiO2/rGO nanocomposite as a photocatalyst for dye degradation
OPTICS AND LASER TECHNOLOGY(2024)
Abstract
In this work, for the first time, the MoO3/TiO2/rGO nanocomposites with different weight ratios of rGO (0%, 5%, 10%, and 20%) were fabricated using pulsed laser ablation technique. The as-fabricated nanocomposites were employed for photodegradation of Methylene Blue (MB) under UV light irradiation. The morphological, struc-tural, and chemical properties of the fabricated photocatalysts were characterized using XRD, TEM, SEM, UV -DRS, XPS, FTIR, TGA, DSC, and PL. Comparative experimental studies displayed that MoO3/TiO2/rGO nano -composites fabricated with 5% rGO showed the highest photocatalytic degradation (95%) of MB under UV irradiation. This superior photocatalytic performance could be ascribed to the narrow bandgap of the fabricated nanocomposites as well as the synergistic effect of the three components.
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Key words
Pulsed laser ablation,MoO 3 /TiO 2 /rGO nanocomposite,Photodegradation,Nanomaterials,Methylene blue
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