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This study investigated the formation of bismuth oxide (Bi 2 O 3 ) crystals by an aqueous precipitation method using bismuth nitrate pentahydrate [Bi(NO 3 ) 3 ·5H 2 O] and NaOH. The phase evolution during NaOH titration was also studied. Basic bismuth nitrates were formed during NaOH titration. However, these nitrates dissolved and recrystallized into Bi ...
TiO 2 thin films were deposited by DC reactive magnetron sputtering. Some TiO 2 thin films samples were annealed for 5min at different temperatures from 300 to 900°C. The structure and optical properties of the films were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (SEM) and ultraviolet–visible (UV–vis) spectrophotometry, respectively. The...
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