Photocatalytic Degradation of Metamifop using TiO2/Al2O3/G Nanocomposite.

In this study, the photocatalytic activity of the prepared TiO2/Al2O3/G nanocomposite photocatalyst was evaluated by applying the photocatalyst for photocatalytic degradation of metamifop, an active ingredient in commercial herbicide, Nominee®-M. The result indicated that X-Ray Diffraction (XRD) result of the prepared photocatalyst showed that TiO2 was in anatase crystalline state and Fourier Transform infrared (FTIR) spectra confirmed the presence of hydroxyl group observed in the range 3291 to 3378 cm-1 attributed to the OH vibrations of an adsorbed water molecule (OH stretching-Al-OH). The highest photocatalytic degradation of 5 mg/L metamifop was 97.8% using 20 mg of TiO2/Al2O3/G nanocomposite photocatalyst assisted with 2 L/min of air flow rate. The prepared photocatalyst was significantly potential to be applied for the photocatalytic degradation of metamifop. [ABSTRACT FROM AUTHOR]