**2.4 Characterization of composite photocatalyst**

The functional group was characterized using Fourier Transform Infrared (Agilent Cary 630 FT-IR). UV–Vis Spectrophotometer (HITACHI U-3900H) was used for the determination of photocatalytic degradation performance. The structural morphology of composite photocatalyst was investigated using scanning electron microscopy (SEM, HITACHI TM3)00).
