SiMo11Ti/GO/PANI复合材料的合成及光催化降解刚果红

摘要

The composite catalyst SiMo11Ti/GO/PANI was prepared by interfacial polymerization method. The composite catalyst was characterized by FT-IR, UV-Vis and XRD. The photocatalytic property of SiMo11Ti/GO/PANI to the degradation of Congo Red was investigated. The influences of catalyst dosage, pH of solution, initial concentration of Congo Red solution, and different catalysts and light source on the photocatalytic degra⁃dation were studied. The results showed that the degradation rate of Congo Red was 92.3%. The degradation rate of Congo Red in the sunlight reached 96.2%, which was better than under the ultraviolet light. The cata⁃lyst for the degradation of Congo Red was of pseudo-first order kinetics.%采用界面聚合法制备了SiMo1 Ti/GO/PANI复合催化剂。用红外光谱、紫外光谱、X-射线粉末衍射对此催化剂进行了表征。研究了该催化剂对染料刚果红的光催化性能，探讨了催化剂用量、染料用量、pH、不同催化剂及不同光源对光催化降解的影响。结果表明：该催化剂对刚果红染料的最大降解率达到92.3%；在太阳光下的降解效果比在紫外光下好，达到96.2%；该催化剂对刚果红染料的降解为准一级动力学反应。