Introducing a metal sulfide-based co-catalyst is an effective strategy to substantially enhance the Fenton reaction.Manipulation of the co-catalyst’s structure is expected to further boost the co-catalytic capability...Introducing a metal sulfide-based co-catalyst is an effective strategy to substantially enhance the Fenton reaction.Manipulation of the co-catalyst’s structure is expected to further boost the co-catalytic capability.Herein,we demonstrate that the intrinsic high-defect surface of a natural molybdenite material contributes to the enhancement of catalytic performance of the Fenton reaction.The defective surface not only exposes more Mo(IV)active sites for rapid Fe^(3+)/Fe^(2+)conversion but also promotes cooperation with H_(2)O_(2)molecules for reactivation.This synergistic effect brings about enhanced reaction kinetics and boosts the decomposition of H_(2)O_(2),which causes the molybdenite co-catalytic system to display an efficient removal rate for various organic pollutants.This work unveils the defects’contribution for catalyzing the Fenton reaction and sheds light on the potential large-scale water treatment use cases for abundant high-defect molybdenite materials.展开更多
基金supported by the National Key Research and Development Program of China(2019YFC0408300,2019YFC0408303,and 2019YFC0408305)the National 111 Project(B14034)+3 种基金Collaborative Innovation Center for Clean and Efficient Utilization of Strategic Metal Mineral Resources,State Key Laboratory of Mineral Processing(BGRIMM-KJSKL-2017-13)Fundamental Research Funds for the Central Universities of Central South University.J.C.acknowledges the support from the National Natural Science Foundation of China(51901147)Collaborative Innovation Center of Suzhou Nano Science,Technology(NANO-CIC)the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD).
文摘Introducing a metal sulfide-based co-catalyst is an effective strategy to substantially enhance the Fenton reaction.Manipulation of the co-catalyst’s structure is expected to further boost the co-catalytic capability.Herein,we demonstrate that the intrinsic high-defect surface of a natural molybdenite material contributes to the enhancement of catalytic performance of the Fenton reaction.The defective surface not only exposes more Mo(IV)active sites for rapid Fe^(3+)/Fe^(2+)conversion but also promotes cooperation with H_(2)O_(2)molecules for reactivation.This synergistic effect brings about enhanced reaction kinetics and boosts the decomposition of H_(2)O_(2),which causes the molybdenite co-catalytic system to display an efficient removal rate for various organic pollutants.This work unveils the defects’contribution for catalyzing the Fenton reaction and sheds light on the potential large-scale water treatment use cases for abundant high-defect molybdenite materials.
