MCPp–TiO2 photocatalysts has been synthesized with one-step method and characterized.
Cu, Co, Zn-porphyrins are profitable for TiO2 photocatalysis activity improvement.
MCPp–TiO2 with good stability display high activities in 4-nitrophenol degradation.
The possible mechanism of MCPp–TiO2 for photocatalytic efficiencies is proposed.