Abstract
In this article, ZnO nanopowders formed from different zinc salts such as acetate, nitrate and sulphate were prepared via homogeneous precipitation followed by refluxing route. Several analytic techniques such as XRD, TEM, and UV-Vis were used to make characterizations of the as-synthesized samples. The results showed that ZnO nanopowders prepared from the sulphate and nitrate salts have merely close crystalline size values, and a smaller crystalline size was obtained for the ZnO formed from acetate counter ions. The band gap of the samples synthesized with the counter ions (CH3COO-, NO3-, and SO42-) were 3.05 ± 0.02, 3.14 ± 0.02 and 3.16 ± 0.02, respectively.
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