Copper(ІІ)-doped WO₃ nanoparticles with visible light photocatalytic antibacterial activity against gram-positive and gram-negative bacteria

Simple impregnation technique was used to modify the surface of tungsten (VI) oxide (WO3) with Cu(II) nanoclusters at molar fraction 1, 3, and 5% mol. Cu(ІІ)–WO3 photo catalysts were studied by, UV-visible light spectra, and FTIR measurements were carried out, respectively. UV–vis reflectance method of Cu(ІІ)–WO3 nanoparticles display that the optical absorption was in the visible region of approximately 2.7 eV; this also assure the combination...