synthesis of cu doped nio nanoparticles by chemical method

the cu doped nio (nio:cu) nanoparticles were synthesized by co-precipitation method using nicl2.6h2o, cucl2.2h2o for ni and cu sources, respectively. sodium hydroxide has been used as a precipitator agent. effect of cu doping agent on the structural and optical properties of nanostructures were characterized by xrd, sem, afm, spectrophotometry, ftir and vsm techniques. xrd revealed that nio:cu has a fcc structure. optical absorption spectra of the samples obtained using uv-vis spectrophotometer shows a blue-shift when copper amount increase which indicates decreasing particle size. the study of magnetization property at room temperature shows weak ferromagnetic behavior of nio:cu nanoparticles. hysteresis loops were show that magnetization increasing with cu doping up to 13% and then with further doping decreasing.