Fig. 13From: Microwave-Assisted Synthesis of Carbon-Based (N, Fe)-Codoped TiO2 for the Photocatalytic Degradation of FormaldehydeRepetitive use of undoped, 0.4 N-doped, 0.01 Fe-doped, and 0.4 N-0.01 Fe-codoped AC/TiO2 photocatalyst ([HCHO] = 30 mg/L, volume of HCHO = 50 mL, photocatalyst amount = 50 mg)Back to article page