Photocatalytic degradation of malachite environmentally friendly dye less than UV mild irradiation using calcium-doped ceria nanoparticles A tentative mechanism for that photocatalytic bleaching of alizarin pink and gentian violet has become proposed. Cuprous oxide (Cu two O) nano-crystallites with different sizes had been well prepared by using electrolysis method and https://francisx074hge0.wikitelevisions.com/user