Abstract
In this study, methylene blue (MB) is used as a measure of the photocatalytic capabilities of the prepared TiO2/Fe3O4 photocatalyst nanocomposite. The nanocomposite was suspended in the dye aqueous solutions placed in a UV chamber under UV-C (254 nm) light irradiation. The TiO2/Fe3O4 nanocomposite was characterised by XRD, FESEM, TEM and EDX analysis. The TiO2/Fe3O4 nanocomposite crystal structure retained TiO2 pure anatase of tetragonal crystal structure (SG: I4/amd) and Fe3O4 cubic spinel crystal structure with average crystalline size of (62.1 ± 5.7) nm. The optimum performance of the magnetic nanocomposite was monitored through few categories, such as concentration of photocatalyst, doping amount of Fe3O4 nanoparticle into the nanocomposite and sintering temperature. The TiO2/Fe3O4 nanocomposite optimum loading was detected at 3.0 wt%. The nanocomposite performed well at 1 wt% of Fe3O4 doping and 350 °C of sintering temperature. The reliability of the TiO2/Fe3O4 nanocomposite was also conducted where it was successfully repeated for at least 3 times with no obvious changes observed in the degradation efficiency.
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