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采用一步法成功制备出多孔氧化铜空心微球,用SEM、XRD和FTIR对制得的样品进行了表征。研究发现,碳源、反应温度、反应时间、CuSO4浓度等实验条件在多孔微球的制备过程中起着重要作用。在实验结果的基础上,提出了多孔氧化铜空心微球的形成机理。制备的多孔氧化铜空心微球的比表面积为409 m2.g-1,平均孔径为3.15 nm,总孔体积为0.256 cm3.g-1,这种空心微球具有量子尺寸效应并对罗丹明B有较高的光催化性能。
Porous copper oxide hollow microspheres were successfully prepared by one-step method. The prepared samples were characterized by SEM, XRD and FTIR. It is found that the experimental conditions such as carbon source, reaction temperature, reaction time and CuSO4 concentration play an important role in the preparation of porous microspheres. Based on the experimental results, the formation mechanism of porous copper oxide hollow microspheres was proposed. The prepared porous copper oxide hollow microspheres had a specific surface area of 409 m2.g-1, an average pore diameter of 3.15 nm and a total pore volume of 0.256 cm3.g-1. The hollow microspheres had the quantum size effect and were stable against rhodamine B A higher photocatalytic performance.