The photocatalytic degradation expe

The photocatalytic degradation experiments were carried out by adding 100 mg of samples into 100 ml of 4X10-5 mol/L
rhodamine B solution. The suspension was stirred in the dark for 30 min to obtain saturated adsorption of rhodamine B (RhB) before irradiation. Then, 5 ml of solution was taken out as a function of time and centrifuuged for quantity measurement using UV-Vis sppectrophotometer (UV-2540) . The light source was solar simulation (Newport 300 W large area Xe lamp with air mass 1.5 direct filter set)