γ-Fe2O3-P-Bent was synthesized firstly by a new and simple method. The CTAB not only serve as an expanding agent, but also act as a template agent in preparation process. The degradation of RhB was significantly enhanced by the γ-Fe2O3-P-Bent photo-Fenton reaction. The γ-Fe2O3-P-Bent catalyst exhibits excellent recyclability and magnetic separability for the degradation of RhB.