Journal
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
Volume 15, Issue -, Pages 6340-6355Publisher
ELSEVIER
DOI: 10.1016/j.jmrt.2021.10.128
Keywords
KX-g-C3N4; Photocatalyst; Methylene blue; Visible light irradiation
Funding
- National Research Foundation (NRF)
- Centre for Nanomaterials Research
- University of Johannesburg
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In this study, potassium salts such as KF, KCl, and KBr were doped onto g-C3N4 to form KX-g-C3N4, which showed excellent photocatalytic degradation of methylene blue (MB) under visible light irradiation. Among the three potassium salts, KF-g-C3N4 displayed the most effective reduction in electron-hole recombination rate during the photocatalytic process.
In this study potassium salts such as KF, KCl and KBr were doped onto g-C3N4 to form KX-g-C3N4 (X 1/4 F, Cl and Br) via a thermal method. The KX-g-C3N4 was characterized by various instrumentation techniques such as UV-visible, FT-IR, XRD, Photoluminescence, TGA, BET, Raman, SEM, EDAX, HR-TEM, and Zeta potential. KX-g-C3N4 was explored for the photocatalytic degradation of methylene blue (MB) under visible light irradiation. Among them, KF-g-C3N4 showed excellent photocatalytic degradation of methylene blue (MB) under visible light irradiation. The KF-g-C3N4 significantly reduced the electrons-holes recombination rate when compared to KCl-g-C3N4, KBr-g-C3N4 and g-C3N4. The photo catalytic degradation mechanism was also studied with KF-g-C3N4. (c) 2021 Published by Elsevier B.V.
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