Green nanofabrication of CeO2/Y2O3 nanocomposite using Leucaena leucocephala leaf extract and investigation of photocatalytic activity.
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| Title: | Green nanofabrication of CeO |
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| Authors: | Dhanetia, H. R.1 (AUTHOR), Surela, Ajay Kumar2 (AUTHOR), Kumar, Nitin3 (AUTHOR), Meena, Parmeshwar Lal2 (AUTHOR) parmeshwar1978@gmail.com |
| Source: | Materials Research Innovations. Jun2026, Vol. 30 Issue 4, p398-409. 12p. |
| Subjects: | Nanocomposite materials, Photocatalysts, Sustainable chemistry, Photocatalytic oxidation, Environmental remediation, Visible spectra, Nanostructured materials |
| Abstract: | This study focused on the green synthesis of a CeO2/Y2O3 nanocomposite using the aqueous leaf extract of Leucaena leucocephala, followed by a detailed investigation of its structural characteristics and photocatalytic performance towards organic dye pollutants under visible-light irradiation. The synthesised CeO2/Y2O3 nanocomposite exhibited an average crystallite size of 12.09 nm and a band gap energy of 3.11 eV, along with a highly porous morphological architecture. Under visible light, the nanocomposite achieved 66.91% degradation of methylene blue (MB) with a kinetic rate constant of 0.00717 min−1, and 61.27% degradation of atrazine (AZ) with a corresponding rate constant of 0.00698 min−1 within 120 minutes. These efficiencies were substantially higher than those obtained with pure Y2O3, demonstrating the beneficial effect of composite formation. The photocatalytic degradation of both dyes was primarily driven by the generation of hydroxyl (•OH) and superoxide (•O2−) radicals. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | This study focused on the green synthesis of a CeO2/Y2O3 nanocomposite using the aqueous leaf extract of Leucaena leucocephala, followed by a detailed investigation of its structural characteristics and photocatalytic performance towards organic dye pollutants under visible-light irradiation. The synthesised CeO2/Y2O3 nanocomposite exhibited an average crystallite size of 12.09 nm and a band gap energy of 3.11 eV, along with a highly porous morphological architecture. Under visible light, the nanocomposite achieved 66.91% degradation of methylene blue (MB) with a kinetic rate constant of 0.00717 min−1, and 61.27% degradation of atrazine (AZ) with a corresponding rate constant of 0.00698 min−1 within 120 minutes. These efficiencies were substantially higher than those obtained with pure Y2O3, demonstrating the beneficial effect of composite formation. The photocatalytic degradation of both dyes was primarily driven by the generation of hydroxyl (•OH) and superoxide (•O2−) radicals. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 14328917 |
| DOI: | 10.1080/14328917.2025.2601643 |
