| 초록 |
Porphyrin-coated TiO2 is a promising photocatalyst owing to its high light adsorptivity and charge separation efficiency. Porphyrins are mixed with TiO2 by adsorption of monomers or porphyrin-based framework particles. However, the conventional method could not evenly disperse the porphyrin, making it difficult to optimize the properties of the porphyrin. Here, we demonstrate that the solution process of the sol of the porphyrin-based covalent network enables synthesizing a porphyrin network-coated TiO2 nanoparticle. The composite shows high photocatalytic activity toward H2O2 synthesis. The grafting of porphyrin-based urea networks nanogel on the substrate surface homogeneously forms a covalent network layer via interparticle reaction. The porphyrin-based covalent network has suitable photophysical properties for H2O2 synthesis. The solution process of the sol of the porphyrin-based covalent network is a promising method for high photocatalytic active porphyrin-coated TiO2. |
