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We report the fabrication and characterization of varying concentration ( x ) of copper (Cu)-doped TiO 2  nanocomposites [Cu (x) TiO 2(1-x) ] exploring the photocatalytic properties for sunscreen applications. The Cu-doped TiO 2  nanocomposite [Cu (x) TiO 2(1-x) ] has been synthesized by the low-temperature lab-scale sol-gel hydrothermal method. The concentration of Cu in TiO 2  has been chosen as 1%, 2%, 3%, and 4% by weight. With varying concentrations of [Cu (x) TiO 2(1-x) ], the structural and morphological properties are obtained using x-ray diffraction (XRD) and scanning electron microscopy (SEM). The effect of optical properties for varying concentrations of Cu 2+  ions in TiO 2  has been studied using Fourier transform infrared spectroscopy (FTIR), UV-Vis absorption spectroscopy. Further, by exploring the photocatalytic properties of fabricated [Cu (x) TiO 2(1-x) ] has been utilized for sunscreen applications. The concept of sunscreen application of Cu-doped TiO 2  can be viewed from the fact that the bare TiO 2  generates free radicals that can raise the risk of harmful effects on the skin. Our aim is to synthesize the nontoxic material which can either stop or slow the process of generation of free radicals under sun exposure. In the sun exposure, the risk of free radicals produces by pristine TiO 2  can be reduced by doping of copper with titania. We have been observed that [Cu (x) TiO 2(1-x) ] with  x  equaling 4% (rutile phase) displays the most effective UV-blocking property with weak photocatalytic activity and is found to be better for sunscreen application. Therefore, Cu-doped TiO 2  nanocomposite maintains all the properties of TiO 2  at nanoscale as well as improves the concerning property of the cosmetic industry.

Encapsulation of Cu-doped TiO 2 nanocomposites with the understanding of weak photocatalytic properties for sunscreen applications