MgFe2O4-LaFeO3 photocatalyst activating persulfate for the efficient degradation of methyl orange
HE Zhuping
WANG Yuhuan
SHANG Tianqi
WANG Zhao
LI Huiyuan
GAO Wenwen
Abstract：MgFe2O4-LaFeO3(MFO-LFO)photocatalysts with varying La content were synthesized using a one-step sol-gel method and characterized by X-ray diffraction,scanning electron microscope,transmission electron microscope,X-ray photoelectron spectroscopy and ultraviolet-visible diffuse reflectance spectros-copy.The performance of different MFO-LFO photocatalysts in activating persulfate(PDS)for the degra-dation of methyl orange(MO)was compared,with MFO-5LFO showing the highest degradation rate of 90.3％.Trapping experiments indicated that singlet oxygen,superoxide radicals and holes are the main active species in the MFO-5LFO-assisted activation of PDS for MO degradation.Additionally,MFO-5LFO demonstrated excellent reusability.Finally,the mechanism of Z-scheme MFO-5LFO photocatalyst activating PDS to degrade MO was proposed.
Keywords：magnesium ferritelanthanum ferriteZ-type heterojunctionphotocatalysispersulfate
Publication Date：2025-10-25
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：9( 747-755 )