Phase formation and structural studies of tungsten oxide wo3–al nanoparticles for future photocatalytic applications

Abstract

Creation and analysis of Aluminum-doped WO3 nano-sized materials, made using microwave heating (2.45 GHz, 180 W for 10 minutes). The Aluminum-doped WO3.H2O samples all showed a crystalline structure, with the orthorhombic shape being the most common. However, when the samples were heated to anneal, both the pure and doped samples exhibited a monoclinic structure. These findings suggest that the dopant plays a crucial role in stabilizing the oxygen content and adjusting the crystal structure of the final products.