Characterization and photocatalytic activity of KSr2Nb5O15 with tungsten bronze structure

• DOI: 10.1007/s11595-009-5742-9
• Publication Date: 2009-11-12T08:20:03Z
• Authors: Gaoke Zhang; Yiqiu Li; Junting Wang; Haibin Tu; Xinyi Yu
• Keywords: Photodegradation; Bronze

Tungsten bronze (TB) type potassium strontium niobate KSr2Nb5O15 was prepared by solid-state reaction method, and was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-vis diffuse spectrum. The photocatalyst shows high photocatalytic activity of photodegrading acid red G. The effects of photocatalyst dosage and initial concentration of acid red G on the photodegradation process were studied. The kinetics of photocatalytic degradation of acid red G by KSr2Nb5O15 catalyst follows the first order reaction.