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- W3213140903 abstract "• CeO 2 QDs modified g-C 3 N 4 was fabricated. • The addition of CeO 2 QDs promotes the photocatalytic performance of as-prepared catalysts. • This work extends the application of quantum dots in catalyst modification. Cerium dioxide quantum dots (CeO 2 QDs) modified graphitic carbon nitride (g-C 3 N 4 ) was fabricated by a facile chemical reaction with urea and cerium nitrate hexahydrate as precursors. Combined X-ray diffraction (XRD), UV–Vis DRS, transmission electron microscopy (TEM), photoluminescence spectroscopy (PL), Electrochemical impedance spectra (EIS), Thermogravimetric analysis (TGA), Brunner-Emmet-Teller (BET) measurements and X-ray photoelectron spectroscopy (XPS) studies showing that CeO 2 QDs dispersed homogeneously on the g-C 3 N 4 surface, which enhanced the absorption in visible light region. Specifically, we found that CeO 2 QDs/g-C 3 N 4 shows much lower electron-hole recombination rate, and its Rhodamine B photodegradation rate constant can reach 0.00985 min −1 , which is 7 times higher than that of single g-C 3 N 4 . In addition, the CeO 2 QDs/g-C 3 N 4 displayed outstanding catalytic stability. Furthermore, the CeO 2 QDs/g-C 3 N 4 catalyst also exhibited the excellent photodegradation performance on other substrates such as TC, Methyl Orange, and Methyl Blue. It was proposed that the CeO 2 QDs/g-C 3 N 4 photocatalyst could follow a more appropriate Z-scheme charge transfer mechanism. Our studies extend the application of Quantum dots nanocomposite catalyst and pave the way for its further rational design." @default.
- W3213140903 created "2021-11-22" @default.
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- W3213140903 date "2022-02-01" @default.
- W3213140903 modified "2023-10-16" @default.
- W3213140903 title "CeO2 quantum dots anchored g-C3N4: synthesis, characterization and photocatalytic performance" @default.
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- W3213140903 doi "https://doi.org/10.1016/j.apsusc.2021.151901" @default.
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