Abstract
It is highly desired to develop efficient photo-catalysts with recycling property for practical application to degrade toxic pollutants.Herein,nanosheet-assembled NiFe2O4 microspheres with commendable activity are successfully synthesized by a facile solvothermal reaction with NH4F as the modifier,and their photoactivities are further improved by coupling with NiO through an in situ growth process.The optimized nickel oxide(NiO)/nickel ferrite(NiFe2O4)microsphere composite(5NiO/NFO-4)exhibits a satisfactory photocatalytic activity for 2,4-dichlorophenol(2,4-DCP)degradation under visible-light irradiation,which is attributed to its wide visible-light response,well-designed hierarchical structure and enhanced charge transfer and separation by coupling NiO as a high-level energy platform to accept electrons.Moreover,it is found that the NiO/NiFe2O4 microsphere photocatalysts can be easily collected and recycled owing to the distinctive magnetic properties.This work provides a feasible route to rational design visible-light-driven photocatalysts with high-activity for environmental reme-diation and purification with good recyclability.
基金项目
National Natural Science Foundation of China(U2102211)
China Postdoctoral Science Foundation(2022M721069)
Postdoctoral Science Foundation of Heilongjiang Province(LBH-Z22034)
Basic Scientific Research Operating Expenses in colleges and universities of Heilongjiang Province(2021-KYYWF-0008)
NETL
NSTL
万方数据