Comparative study of KF, KCl and KBr doped with graphitic carbon nitride for superior photocatalytic degradation of methylene blue under visible light
Autor: | M. Molefe, Kriveshini Pillay, Tarisai Velempini, E. Prabakaran |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Materials science
Photoluminescence Methylene blue Mining engineering. Metallurgy Visible light irradiation Potassium Doping Metals and Alloys Graphitic carbon nitride Photocatalyst TN1-997 chemistry.chemical_element Surfaces Coatings and Films KX-g-C3N4 Biomaterials symbols.namesake chemistry.chemical_compound chemistry Ceramics and Composites symbols Zeta potential Raman spectroscopy Visible spectrum Nuclear chemistry |
Zdroj: | Journal of Materials Research and Technology, Vol 15, Iss, Pp 6340-6355 (2021) |
ISSN: | 2238-7854 |
Popis: | In this study potassium salts such as KF, KCl and KBr were doped onto g-C3N4 to form KX-g-C3N4 (X = 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 photocatalytic degradation mechanism was also studied with KF-g-C3N4. |
Databáze: | OpenAIRE |
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