Abstract
Herein, Y2O3@g-C3N4 composite at different calcination temperatures was fabricated by ultrasonication method in the presence of methanol, and its photocatalytic competence was assessed by the photo-destruction of Congo red (CR). The XRD microstructural analysis manifested that the crystalize size estimated of Y2O3@g-C3N4 changes from 16.17, 15.08, and 14.18 nm as the temperature is raised from 180 to 340 C-o. The SEM images confirmed the dispersion of Y2O3 within the g-C3N4 sheets whereas the EDX and XPS analysis quantized the elemental composition. The Y2O3@g-C3N4 exhibited excellent photocatalytic performance following the pseudo-first-order kinetics due to charge carriers' separation and the e(-) and (OH)-O-center dot involvement through an S-scheme mechanism. The outcome of the study highlights the excellent photocatalytic activity of Y2O3@g-C3N4 for dyes degradation under visible light.