Mohd Razip, Nora Izzati and Lee, Kian Mun and Lai, Chin Wei and Ong, Boon Hoong (2019) Recoverability of Fe3O4/TiO2 nanocatalyst in methyl orange degradation. Materials Research Express, 6 (7). 075517. ISSN 2053-1591, DOI https://doi.org/10.1088/2053-1591/ab176e.
Full text not available from this repository.Abstract
Iron oxide/titania (Fe3O4/TiO2) magnetic nanocatalysts approximately 30 nm in size were synthesized by co-precipitation method. The structure and morphology of the prepared nanocatalyst were characterized by Field Emission Scanning Electron Microscope coupled with Energy Dispersive X-ray spectroscopy (FESEM-EDX), Transmission Electron Microscope (TEM), Fourier Transform Infrared Spectroscopy (FT-IR), X-ray Diffraction (XRD), Raman Spectroscopy, UV Diffuse Reflectance Spectroscopy (UV-DRS), Vibrating Sample Magnetometer (VSM), and Brunauer-Emmett-Teller (BET) and Barrett-Joyner-Halenda (BJH) analyses. The prepared nanocatalyst showed good photocatalytic activity for the degradation of methyl orange (MO) dye solution. The Fe3O4/TiO2 (P25) showed better photocatalytic ability compared to that of Fe3O4/TiO2 (UV100) for MO dye degradation (10 ppm) under UV irradiation (λ = 254 nm). The experimental results revealed that 90.3% of MO dye was degraded with Fe3O4/TiO2 (P25) nanocatalyst, as compared to Fe3O4/TiO2 (UV100) nanocatalyst with only 51.6% after 1 h irradiation. The synthesized magnetic nanocatalysts are stable up to 5 cycles due to their strong recoverability towards an external magnet. Interestingly, the nanocatalyst was reasonably stable after being left undisturbed for 12 months. © 2019 IOP Publishing Ltd.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | dye degradation; iron oxide; methyl orange; TiO2; UV100 |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 11 Mar 2020 01:01 |
| Last Modified: | 11 Mar 2020 01:01 |
| URI: | http://eprints.um.edu.my/id/eprint/23989 |
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