Papers by Keyword: Parallel Flaw Precipitation Method

Abstract: In this paper, parallel flaw precipitation method has been employed to fabricate nanostructured Co₃O₄ with the assistance of different surfactants. It is found that the surface parameters, SEM image and photocatalytic performance of Co₃O₄ have a strong dependence on the type of surfactants. The prepared photocatalysts Co₃O₄ were characterized by BET, XRD and SEM. The results show that Co3O4 prepared with the assistance of sodium dodecylbenzenesulfonate exhibits the best photocatalytic activity among the experimented compositions. The surface parameters and SEM all play an important role in promotion of photocatalytic activity of Co₃O₄ prepared.

Abstract: In this paper, parallel flaw precipitation method has been employed to fabricate nanostructured Bi₂O₃. It is found that the surface parameters, bandgap, the photoinduced charge separation rate and photocatalytic performance of Bi₂O₃ have a strong dependence on the pH value of precipitation reaction.The prepared photocatalysts were characterized by BET, XRD, UV-Vis diffuse reflectance and surface photovoltage spectroscopy (SPS). The results show that Bi₂O₃ prepared under pH value10.0 exhibits the best photocatalytic activity among the experimented compositions. The results of further experiments show that surface parameters, bandgap, the photoinduced charge separation rate all play an important role in promotion of photocatalytic activity of Bi₂O₃ prepared under pH value 10.0.