Mass Production of Bi₃NbO₇ / Bi₂Zn_2/3Nb_4/3O₇ composites and their visible-light photocatalytic activity

Abstract

Series Bi₃NbO₇/Bi₂Zn_2/3Nb_4/3O₇ (BN/BZN) composites were synthesized through a facile solid state reaction method. The products were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and UV-vis diffuse reflectance spectroscopy(DRS). When BN: BZN=0.1 mole ratio, the BN/BZN composite showed the best visible-light-driven photocatalytic performance, which decomposed nearly 100% of RhB (10 ppm, pH=3-4) within 40 min. The results demonstrated that in-situ solid state synthesis of BN/BZN composites could be an efficient strategy to develop new photocatalyst for environmental remediation.

Keywords

visible-light-driven photocatalyst / Bi₃NbO₇/Bi₂Zn_2/3Nb_4/3O₇ composites / solid state reaction method

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