Veni, K. Krishna and Kavitha, R. and Sagadevan, Suresh and Nehru, L. C. (2025) Ruthenium-doped ZnSnO3 nanoparticles for efficient sonophotocatalytic dye degradation and wastewater treatment. Materials Science and Engineering B-Advanced Functional Solid-State Materials, 314. ISSN 0921-5107, DOI https://doi.org/10.1016/j.mseb.2025.118037.
Full text not available from this repository.Abstract
In this work, pure and Ru-doped zinc stannate ZnSn(1-x)O3: Rux with (X = 0, 0.02, 0.04, 0.06 M) was synthesized by green synthesis approach using chitosan as a bio-capping agent. XRD analysis revealed that the prepared nanoparticles exhibited a perovskite orthorhombic crystal structure with a Pnma space group. HRTEM images confirmed the spherical morphology of the nanoparticles. The FTIR spectra identified the Zn-O and Sn-O bonds, which corresponds to the stretching and vibration modes. XPS analysis confirmed the presence of all constituent elements (Zn, Sn, O, and Ru) in both bare and Ru-doped ZnSnO3 NPs. According to the UV-Vis spectra, there is an enhancement of absorption in the visible region, which is clearly demonstrated by the redshift of the optical response towards the visible region due to the lower bandgap energy. Photocatalytic, sonocatalytic, and sonophotocatalytic activity of pure and Ru-doped ZnSnO3 NPs were evaluated by assessing their ability to degrade the alizarin red S (AR) and crystal violet (CV) dyes under visible light irradiation, and ultrasonic treatment. Among the Ru-doped ZnSnO3 NPs tested, the sample with 4% Ru exhibited the highest efficiency in degrading the dye within 100 min. The sonophotocatalytic activity exhibits the greatest degradation efficiency among the three different catalytic activities, achieving complete degradation of CV dye within 100 min at the optimal pH of 10. Reusability experiments has shown the good stability of the 4 % Ru-doped ZnSnO3 NPs after five successive cycles. The sonophotocatalytic activity of synthesized Ru-doped ZnSnO3 NPs has potential applications for environmental remediation in wastewater treatment.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Ru-doped ZnSnO3; Nanoparticles; Sonophotocatalytic activity; Dye degradation; Wastewater treatment |
| Subjects: | Q Science > QC Physics |
| Divisions: | Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 02 Oct 2025 06:58 |
| Last Modified: | 02 Oct 2025 06:58 |
| URI: | http://eprints.um.edu.my/id/eprint/47969 |
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