Synthesis and Photocatalytic Evaluation of Graphitic-Carbon Nitride by Polycondensation of Urea

This study reports the synthesis of graphitic-carbon nitride (g-C۳N۴) through thermal polycondensation of urea, followed by ultrasonication-assisted exfoliation. Structural, chemical, and morphological characterizations confirm the formation of polymeric g-C۳N۴ with typical XRD and FT-IR signatures and partially exfoliated sheet-like morphology in SEM images. Photocatalytic performance was evaluated using ۲۰ ppm methylene blue solution and ۴۰ miligram of g-C۳N۴, where it achieved ۳۰% dark absorption, ۴۲% photocatalytic degradation under UV-visible irradiation, and a total removal efficiency of ۷۲% after ۲۴۰ minutes. These findings demonstrate the potential of synthesized urea-derived g-C۳N۴ as a cost-effective photocatalyst for organic pollutant degradation.

کلیدواژه ها:

Graphitic-Carbon Nitride ، Urea ، Polycondensation ، Photocatalyst