2022年10月17日 · TiO2, CuS, and TiO2/CuS (M = 0.25, 0.50, and 0.75) nanocomposites were synthesized using one-step hydrothermal method for the photocatalytic degradation of harmful crystal violet dye. XRD patterns of pure and composite nanoparticles revealed tetragonal and hexagonal crystal structures of TiO2 anatase and CuS nanoparticles. The band gap of the