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In this study, in order to investigate the morphology change of Au nano-particles/island film with the sputtering time and annealing time, Au nano-particles/island films were sputtered on the (100) silicon wafers by radio-frequency magnetron sputtering. Before deposition, the background vacuum of deposition chamber was a base pressure of 10-5 mbar. During sputtering, Ar pressure is changed to 2.5...
Nanosized ZnO catalysts prepared by the precipitation method were used for the degradation of dichloroacetic acid (DCAA) in acidic solution by ozone. Catalyst samples were characterized by measuring the specific area (BET) and X-ray diffraction (XRD). The results showed that the presence of ZnO catalyst obviously improved the degradation efficiency of DCAA in the process of ozonation, 67.9% higher...
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