Study on photocatalysis and dynamics properties of self-catalysis BiVO4 assembled in porous Sr2MgSi2O7:Eu2+,Dy3+

Energy-storage self-catalysis material that BiVO4 assembled into porous Sr2MgSi2O7:Eu2+,Dy3+ was successfully synthesized by the impregnation method. Crystalline phases and microstructure of the energy-storage self-catalysis material were analyzed by X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy and atomic force microscope. Results indicated that BiVO4 was assembled into Sr2MgSi2O7:Eu2+,Dy3+ pores physically. The photocatalysis property of the assembled sample was characterized through degrading the 5 ppm Rhodamine B solution and kinetics property was fitted according to the Langmuir-Hinshelwood formula. Results demonstrated that the assembled compounds exhibited higher photodegradation efficiency than the pure BiVO4 no matter under the light or dark condition.