氧化亚铜光催化降解活性艳红的研究
Study on photocatalytic degradation of reactive brilliant red X-3B using cuprous oxide
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摘要: 制备了纳米SiO2-Cu2O复合氧化物，并对其进行表征。研究了SiO2-Cu2O在可见光照射下光催化降解活性艳红X-3B的性能。考察了催化剂组成、活性艳红浓度、催化剂用量、H2O2等对光催化反应的影响，还研究了Cu2O光催化反应动力学。结果表明，用SiO2摩尔含量为2%的SiO2-Cu2O光催化降解活性艳红，反应4 h，活性艳红降解率达到85%，降解反应为一级反应。Abstract: Nano-sized SiO2-Cu2O complex oxides were prepared and characterized. The photocatalytic degradation of the reactive brilliant red X-3B over the SiO2-Cu2O was investigated under the irradiation with visible light. The effects of composition, the different dye concentrations, the amount of catalyst used, and the presence of H2O2 were studied. The photocatalytic kinetics of the X-3B over the SiO2-Cu2O were also studied. The results showed that the degradation rate of X-3B over the SiO2-Cu2O with the 2% molar content of SiO2 was 85% after 4 h,and the degradation of X-3B followed the firstorder kinetic.
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