Photocatalysis-self-Fenton system,i.e.,photo-catalytic H2O2 generation and utilization in situ for OH radials production to remove organic pollutants with high-fluent degradation and mineralization performance pos-sesses such advantages as cleanliness,efficiency and safety.However,its degradation activity always suffers from the Fe(Ⅲ)/Fe(Ⅱ)cycle.For this reason,graphitic carbon interface-modified g-C3N4(CUCN)was fabricated to remarkably improve photocatalysis-self-Fenton degra-dation activity.The experiment results indicated that CUCN-2％photocatalyst,in which the loading percentage of graphitic carbon was 2％,demonstrated the optimum degradation performance among all the counterparts.The mineralization degree for RhB in 3 h over CUCN-2％reached 63.77％,nearly 3.35-fold higher than the pristine g-C3N4.The significantly improved mineralization efficiency was ascribed to the promoted Fe(Ⅲ)/Fe(Ⅱ)cycle by photogenerated electrons,which leading to the higher utilization efficiency of H2O2 through Fenton reaction,thereby producing more hydroxyl radicals.It is anticipated that our work could provide new insights for the design of photocatalysis-self-Fenton system with exceptional degradation performance for actual photocat-alytic applications.

Le Chen;Xin-Xia He;Ze-Han Gong;Jia-Lian Li;Yang Liao;Xiao-Ting Li;Jun Ma

College of Chemistry and Materials Science,Sichuan Normal University,Chengdu 610068,China;Department of Science and Technology,Sichuan Normal University,Chengdu 610068,China;Key Laboratory of Land Resources Evaluation and Monitoring in Southwest,Ministry of Education,Chengdu 610068,China

稀有金属（英文版）

[1]Le Chen;Xin-Xia He;Ze-Han Gong;Jia-Lian Li;Yang Liao;Xiao-Ting Li;Jun Ma-.Significantly improved photocatalysis-self-Fenton degradation performance over g-C3N4 via promoting Fe(Ⅲ)/Fe(Ⅱ)cycle)[J].稀有金属（英文版）,2022(07):2429-2438

radials,CUCN

Significantly,improved,photocatalysis,self,Fenton,degradation,performance,over,C3N4,via,promoting,cycle,Photocatalysis,system,catalytic,H2O2,generation,utilization,situ,production,remove,organic,pollutants,fluent,mineralization,pos,sesses,such,advantages,cleanliness,efficiency,safety,However,its,activity,always,suffers,from,For,this,reason,graphitic,carbon,interface,modified,was,fabricated,remarkably,experiment,results,indicated,that,photocatalyst,which,loading,percentage,demonstrated,optimum,among,all,counterparts,degree,RhB,reached,nearly,fold,higher,than,pristine,significantly,ascribed,promoted,photogenerated,electrons,leading,through,reaction,thereby,producing,more,hydroxyl,radicals,It,anticipated,our,work,could,provide,new,insights,design,exceptional,actual,applications

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