Treatment of synthetic rainwater using composite catalyst-(TIO2/FE2O3) by photocatalysis process
| dc.contributor.author | Nur Afiqah Binti Abdullah | |
| dc.date.accessioned | 2021-01-27T01:33:57Z | |
| dc.date.available | 2021-01-27T01:33:57Z | |
| dc.date.issued | 2019-06 | |
| dc.description.abstract | The present work focuses on the synthesis, characterization and photocatalytic activity of a composite catalyst (TiO2/Fe2O3) in degradation of fluoranthene (FLT) and pyrene (PYR) using heterogeneous photocatalysis process. The samples were synthesized by the inexpensive and environmentally sol–gel method and characterized by using techniques such as X-RayDiffraction (XRD), Scanning Electron Microscopy-Energy Dispersive XRay (SEM-EDX), UV–Vis Diffuse Reflectance Spectra (UV-Vis DRS) and BrunauerEmmett-Teller (BET). Synthetic rainwater was used under different experimental conditions of pH and concentration of the (TiO2/Fe2O3). In order to maximize the process efficiency, response surface methodology (RSM) was used by considering two independent variables of pH and (TiO2/Fe2O3) concentration. In this study, the concentration of the pollutants were kept constant throughout the treatment process. The result of characterization showed that doped titania has high surface area (80.9 m2/g), narrow band gap (1.6 eV) and able to absorb wavelength in the visible region up to (>400 nm). The highest percentage of removal obtained from the experimental run (actual) for FLT and PYR 30 minutes after treatment are 75% and 87%, respectively, while for after 60 minutes of treatment for FLT and PYR are 97% and 92% respectively, occurs at optimum condition of pH=5 and minimum dosage of (TiO2/Fe2O3) of 0.25 g/L. The degradation of pollutants obtained in this study confirmed the feasible use of natural sunlight as the UV source for the photocatalysis process to take place. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/11073 | |
| dc.language.iso | en | en_US |
| dc.title | Treatment of synthetic rainwater using composite catalyst-(TIO2/FE2O3) by photocatalysis process | en_US |
| dc.type | Other | en_US |
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