Composite photocatalyst with titanium dioxide axially functionalized by metallic zinc porphyrin and preparation method thereof

The invention belongs to the technical field of photocatalytic materials for degrading dye wastewater pollutants, and discloses a composite photocatalyst with titanium dioxide axially functionalized by metallic zinc porphyrin and a preparation method thereof. The method includes the synthesis steps that anatase type titanium dioxide and metallic zinc porphyrin are proportionally mixed in an organic solvent, heating reflux is conducted, and then the photocatalyst with titanium dioxide sensitized by metallic zinc porphyrin is obtained after filtering, washing and drying. The synthesis method is simple, and the prepared composite photocatalyst is stable in property, high in photocatalytic activity and capable of being used as an environment purifying material used for photocatalytic treatment of dye wastewater pollutants. 本发明属于降解染料废水污染物的光催化材料技术领域，公开了种金属锌卟啉轴向功能化二氧化钛的复合光催化剂及其制备方法。合成步骤包括：将锐钛矿型二氧化钛与金属锌卟啉在有机溶剂中按比例混合，进行加热回流，然后经过滤、洗涤及干燥后得金属锌卟啉敏化的二氧化钛光催化剂。本发明合成方法简单，所制备复合材料性质稳定、光催化活性高，可作为光催化处理染料废水污染物的环境净化材料。