Preparation and photocatalytic property of potassium niobate K6Nb10.8O30

The TB-type potassium niobate K6Nb10.8O30 was synthesized by a simple solid-state reaction method. Scanning electron microscope (SEM) and X-ray diffractometer (XRD) were used to characterize the structure of the photocatalyst. The photocatalyst K6Nb10.8O30 shows high photocatalytic activity to photodegrade acid red G under UV irradiation. The influences of catalyst dosage, initial concentration of acid red G on the photocatalytic reaction were investigated. The kinetics of photocatalytic degradation of acid red G follows the first order kinetics.