The study of optical, structural and magnetic properties of Cu-doped ZnO nanoparticles

Sunlight light-driven degradation of anthracene and naphthalene on robust Cu2+doped ZnO nanoparticles from simulated rainwater: optimization factors, kinetics, and reusability

“…Oxygen vacancies and lattice disorder induce peak widening. 31 The XRD peaks of Cu-doped ZnO samples also shift slightly toward a higher Bragg's angle indicating an increase in the lattice constant. The slight change in the lattice parameters and crystallite size suggests that the substitution of Cu ions into the Zn sites could occur.…”

“…ZnO (n-type) and Cu came into contact, which resulted in an increase in resistivity, a decrease in the number of n-type donor carriers, and a decrease in charge recombination. 31,35 Doping ZnO broadens the charged separation range, reducing e − /h + recombination (Fig. 7c).…”

“…29,30 Hence to overcome such a problem, a possible approach to get over these restrictions, surface imperfections, bandgap moderation, and more probability of photogenerated e − /h + recombination is by doping of ZnO nanoparticles with metals (Cu, Ag, and CO). [31][32][33] In ZnO : Cu 2+ , interesting catalytic properties have been reported. 25 The current study aimed to prepare a novel sunlight-active green synthesized Cu doped ZnO (Cu@ZnO) nanocomposite by using the leaf extract of Azadirachta indica (neem) for the removal of NAP and ANT (Fig.…”