benti gasisa, Kenno; kebede, Tesfahun Major Advisor (PhD)
(Haramaya university, 2016-10)
Nanoparticles of the metal sulfides (ZnS, CdS and NiS) were prepared by precipitation method from the
aqueous solution of Na2S. 9H2O using aqueous solutions of their soluble salts Zn (NO3)2.6H2O,
Cd(NO3)2.4H2O, Ni(NO3)2.4H2O, ...