ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China (No.21276208), the Doctor Fundation of Education Ministry of China (No.20096118110008), the Special Research Fund of Shaanxi Provincial Department of Education of China (No.12JK0606), and the Research Fund for Excellent Doctoral Thesis of Xi'an University of Technology (No.207-002J1304).
The metal complex 5-(4-aminophenyl)-10,15,20-triphenylporphyrin copper (CuAPTPP) was covalently linked on the surface of TiO2 microspheres by using toluene disocyanate (TDI) as a bridging bond unit. The hydroxyl...