Ferrocene-modified rare earth metal porphyrin photocatalyst as well as preparation method and application thereof

The invention discloses a ferrocene modified rare earth metal porphyrin photocatalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, carrying out esterification reaction by taking tetrahydroxy porphyrin and ferrocenecarboxylic acid as raw materials and benzene as a solvent to obtain a ferrocenyl porphyrin ligand; then, by taking a rare earth acetylacetone complex and a ferrocene ester-based porphyrin ligand as raw materials and 1, 2, 4-trichlorobenzene as a solvent, carrying out coordination reaction in a protective gas atmosphere to prepare a ferrocene modified rare earth metal porphyrin photocatalyst; the ferrocene-modified rare earth metal porphyrin photocatalyst shows an excellent catalytic effect when being applied to catalysis of a cycloaddition reaction of carbon dioxide and epoxide, and meanwhile, cyclic carbonate with relatively high yield is obtained. 本发明公开了一种二茂铁修饰的稀土金属卟啉光催化剂、制备方法及其应用。本发明首先通过以四羟基卟啉、二茂铁甲酸为原料，苯为溶剂，进行酯化反应，得到二茂铁酯基卟