Preparation of Bi2WO6 Nanoparticles with Improved Photocatalytic Properties by Adding Triblock Copolymer P123

Abstract

Nanocrystalline bismuth tungstat with good visible light response has been synthesized using Pluronic P123 triblock copolymer as surfactant.The prepared samples were characterized by X-ray diffraction, UV-visible spectroscopy, scanning electron microscopy, and BET surface area analysis.The activity of the material in photocatalytic decoloration of aqueous rhodamine B (RhB) solution under visible light was evaluated.The results showed that the presence of P123 could improve the crystallization of Bi 2 WO 6 species and greatly enlarge their specific surface area.The copolymer concentration has a great impact on the bismuth tungstat morphology.The photocatalytic efficiency of the as-prepared Bi 2 WO 6 with P123 adjusted is higher than that of pure Bi 2 WO 6 .