双弓形铜卟啉异相和可见光催化降解甲基橙

Heterogeneous and Visible Light-catalyzed Degradation of Methyl Orange by Double-bowed Copper Porphyrins

金属卟啉是一类具有良好光敏性的大环芳香化合物。以cis-ortho-双捆扎的双弓型铜卟啉1-Cu至4-Cu为光催化剂,以平面铜卟啉TPP-Cu为参照,在异相和可见光下催化降解甲基橙。结果表明铜卟啉光催化性能与大环扭曲有正向相关性。采用动态紫外-可见吸收光谱手段跟踪大环扭曲对铜卟啉光催化性能的影响。

Metalloporphyrin is a macrocyclic conjugated aromatic compound with high performance of photosensi-tivity.The double-bowed copper porphyrins 1-Cu to 4-Cu cis-ortho-distrapped were used as photocatalysts to catalyze the degradation of methyl orange under visible light and heterogeneous condition,and the planar copper porphyrin TPP-Cu was used as a reference.The results showed a positive correlation between the photocatalytic performance of copper porphyrins and the macrocyclic distortion.The effect of macrocyclic distortion on the pho-tocatalytic performance of copper porphyrins was tracked by means of dynamic UV-vis absorption spectroscopy.