Photocatalytic Degradation By Iron Porphyrinates And Sensitized Titanium Dioxide

This thesis is mainly about the studies on photocatalytic degradation by iron porphyrinates,which is divided into three parts.In the first part,we have synthesized an iron porphyrinate dimer through carboxylate-iron coordination,[Fe(A)].Its single crystal structure was solved.We used it as a photocatalyst to explore its photocatalytic performance to MB solution.The experimental results showed that it was an efficient and recyclable photocatalyst.In the second part,we synthesized a bromo-substituted porphyrin H2OBP-NO2 and its iron compounds,which were characterized by X-ray crystallography.Because of the steric hindrance,the porphyrin plane shows a very saddled conformation.Our studies on its photocatalytic performance to MB solutionshowed that [Fe(OBP-NO2)Cl]was an efficient and recyclable photo catalyst.In the third part,we converted [Fe(A)] into [Fe(B)],and also obtained a new composite material [Fe(B)-Ti O2].Weexplored its photocatalytic performance to the 4-nitro phenol in different conditions.The experiment results shows that [Fe(B)] is a good photosensitizer,which can make Ti O2 more photocatalytic active.