▎ 摘　　要

This work reports the synthesis of a variety of perovskite-type titanates (MTiO3, M = Zn, and Mn) and their loading on functionalized magnetic graphene oxide (EDFG) to produce MTiO3 @EDFG nanocom-posites. These materials were fully characterized by FT-IR and Raman spectroscopy, XRD, SEM, TEM, N2 adsorption-desorption, VSM, UV-vis DRS, PL, CV, and EIS techniques. SEM and TEM images of the MTiO3 @EDFG revealed the homogeneity and distribution of MTiO3 nanoparticles on the surface of EDFG. UV-vis absorption and PL analyses suggested that the MTiO3 @EDFG nanocomposites could be used as ef-ficient photocatalysts for the degradation of Rhodamine B (RhB) under visible light irradiation. The results indicated that the photocatalytic activities of the MTiO3 @EDFG samples were obviously enhanced in com-parison to those of bare MTiO3. The enhanced photocatalytic activity was mainly attributed to the con-glomeration inhibition of MTiO3 nanoparticles, improved electron transfer between MTiO3 and EDFG en-hanced surface area, and extended absorption range. The possible electron transfer mechanism for EDFG and MTiO3 interface during the photocatalysis process is also proposed. Furthermore, the reusability and stability tests were made and reported.(c) 2023 Published by Elsevier B.V.