Experimental Research of ZnO Nano-particles Production by Supercritical Hydrolysis
Supercritical hydrolysis is a new method to produce ZnO micro-particles whose average diameter is 78 nm. The resulting samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and particle-size analyzer. Its product is the high purity ZnO which is characterized by the features of the small particle size, the well developed dispersion, and the fine concentricity. The influences of process parameters, including pressure, temperature, total flux and ratio of branch flux, on particle size were investigated at the same time. The results indicated that the particle size has a significant increasing trend with an increase in the pressure and temperature; however, it decreased with an increase in the total flux, while it decreased slightly with an increase in the ratio of branch flux.
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万方数据
维普
