An extremely sensitive Jet nebuliser spray pyrolysis has been used to prepare by using indium tinoxide thin films. Visible light responsive In₂O₃ composite was successfully prepared and annealed for different temperatures. The as-prepared samples and annealed samples were characterized by X-ray diffraction (XRD) and UV–Vis spectra (UV–Vis). The ordered structure of was destroyed to some extent and the size of In₂O₃ particles is about 20–40 nm. The absorption edges of the IR samples (about 360 nm) display a noticeable shift to the visible light region as compared to that of the In₂O₃. The In₂O₃ annealed at different temperatures showed a strong adsorption capability and a high visible light and well grained morphological studies of SEM, which could be attributed to the synergetic effects of the structure and the I₂O₃.
