Abstract
Micron-scale Ag2O particles were successfully synthesized using efficient chemical precipitation method and the reaction kinetics concerning the empirical rate law were investigated. The effects of the reaction components which consisted of AgNO3, NaOH and NH3·H2O on reaction rate and morphology of the prepared Ag2O were evaluated. As a result, the concentration of NaOH had an important influence on reaction rate and reaction conversion rate. X-ray diffraction (XRD) analyses show that the purity and phase composition of Ag2O altered with NaOH concentration. The effects of reaction temperature on reaction rate and the morphology of Ag2O were also evaluated. In addition, the empirical kinetic equation was determined by the formation rate of Ag2O and the activation energy (Ea) was 40.58 kJ mol−1. The prepared micron-scale Ag2O particles are environmentally friendly and are expected to used as precursors for the preparation of energetic materials or used in other industrial fields.
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