氧化亚铜光催化降解活性艳红的研究

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。

Study on photocatalytic degradation of reactive brilliant red X-3B using cuprous oxide

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 first order kinetic.