Investigation of photodegradation of 2,4-Dichlorophenoxyacetic acid on Cu2O/g-C3N4 catalysts

Le Thanh Son; Nguyen Thanh Binh; Do Van Dang; Dang Van Long

doi:10.51316/jca.2022.056

Authors

Le Thanh Son Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, Vietnam
Nguyen Thanh Binh Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, Vietnam
Do Van Dang Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, Vietnam
Dang Van Long Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, Vietnam

DOI:

https://doi.org/10.51316/jca.2022.056

Keywords:

photodegradation, graphitic carbon nitride, 2,4-Dichlorophenoxyacetic acid

Abstract

The series x% (wt) Cu₂O/g-C₃N₄ composites were prepared by the conventional impregnation method. These compounds were characterized by different methods such as X-ray Diffraction (XRD), Fourier Transform Infrared spectroscopy (FTIR), UV–vis diffuse reflectance spectroscopy (UV-DRS), and Photoluminescence spectroscopy (PL). The results clearly showed the existence of Cu₂O and g-C₃N₄ phases. The photocatalytic activity was estimated by the degradation of 2,4-Dichlorophenoxyacetic acid (2,4-D). The 5% Cu₂O/g-C₃N₄ catalyst showed the highest activity, with the photodegradation yield reached 7,3%. The addition of H₂O₂ remarkably improved the yield, with 98,5% attained after 1 hour of irradiation.

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