Studied of Physical, Optical and Photocatalytic Properties of Bi2WO6 Particles Prepared via Co-precipitation Method with Different Calcination Temperatures

Abstract

Bismuth tungstate (Bi₂WO₆) samples were prepared via co-precipitation method at pH 7 medium solution and calcination temperatures of 200, 400, 600 and 800°C for 5 hours. The structure of bismuth tungstate could analyze by XRD, DTA, TGA, and FTIR techniques. In addition, we were studies photocatalytic properties. In this research, we found that the calcined of bismuth tungstate was showed the orthorhombic phase for the majority phase and the tetragonal crystal structure for the minor phase. In addition, the synthesis of bismuth tungstate that was prepared via the co-precipitation method and sintering of samples at 200°C was showed the highest efficiency for 89.22% degradation of Rhodamine B solution within 180 min visible-light irradiation.