Fowziya Shaik Ali, Faisal Al Marzouqi, A. Afroos Banu, M. Ismail Fathima, A. R. Mohamed Jahangir, K. Mohamed Rafi, A. Ayeshamariam. Novel synthesis of cerium oxide nano photocatalyst by a hydrothermal method[J]. Journal of Semiconductors, 2021, 42(12): 122801
- Journal of Semiconductors
- Vol. 42, Issue 12, 122801 (2021)
Fig. 1. (Color online) XRD patterns of the CeO2 nano particles synthesized at different molar ratio.
Fig. 2. SEM image of (a) CeO2 (1 : 6), (b) (1 : 5), (c) (1 : 4).
Fig. 3. (Color online) EDAX spectrum of (a) CeO2 (1 : 6), (b) CeO2 (1 : 5) and (c) CeO2 (1 : 4).
Fig. 4. (Color online) UV–vis absorbance spectra of as synthesised CeO2.
Fig. 5. UV–vis DRS of (a) ceria (1 : 6), (b) (1 : 5) and (c) (1 : 4) proportions of the samples.
Fig. 6. X-Ray Photoelectron Spectra of ceria nanoparticles.
Fig. 7. (Color online) Raman spectra of synthesised ceria nanoparticles in different molar ratio.
Fig. 8. (Color online) Mechanism of Photocatalytic degradation of MB dye.
Fig. 9. (Color online) Photocatalytic degradation of absorbance spectrum of MB in the presence of CeO2 (1 : 4, 1 : 5, 1 : 6 molar ratio). (catalyst dosage – 250 mg/250 mL, concentration of MB = 5 mg/L; light source = UV-B)
Fig. 10. (Color online) Variation of normalized concentration of MB (C 0 = 5 mg/L) with irradiation time under UV–light condition.
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Table 1. Crystal structure values of cerium oxide nanoparticles of different molar ratio.
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