Cu²⁺-doped TiO₂ nanoclusters are prepared by the sol-gel method. Scanning electron microscopy and X-ray diffractometry are applied to characterize their structural properties. The photocatalytic analysis is done by UV-Vis absorption spectrum. The results of X-ray diffraction (XRD) shows the presence of rutile peak with a strong orientation along (1 1 0) plane. Scanning electron microscopy (SEM) study shows the uniform distribution of agglomerated nanoclusters. EDS spectrum confirms the presence of doped metal ion Cu²⁺ in the TiO₂ crystal lattices. In this work, the photocatalytic effect of Cu²⁺-doped TiO₂ on the degradation of methyl orange dye is studied. TiO₂ doped with 5 wt% Cu²⁺ gives an excellent result in the degradation of methyl orange.

Keywords: TiO₂; Nanocluster; Sol-Gel Method; Photocatalysis;