One-step preparation of Fe_xO_y/N-GN/CNTs heterojunctions as a peroxymonosulfate activator for relatively highly-efficient methylene blue degradation

作     者：Xin Zhao Qing‐Da An Zuo‐Yi Xiao Shang‐Ru Zhai Zhan Shi 赵鑫;安庆大;肖作毅;翟尚儒;施展

作者机构：Faculty of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalian 116034LiaoningChina State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin UniversityChangchun 130012JilinChina 

基　　金：supported by the National Natural Science Foundation of China(21676039) Innovative talents in Liaoning universities and colleges(LR2017045) the Opening Foundation of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry of Jilin University(2016–04) 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2018年第39卷第11期

页      码：1842-1853页

摘      要：Persulfate decontamination technologies utilizing radical‐driven processes are powerful tools for the treatment of a broad range of ***,the design of high‐performance catalytic activators with multi‐functionality remains a great ***,in this study,three‐dimensional multifunctional FexOy/N‐GN/CNTs(N‐GN:nitrogen‐doped graphene,CNTs:carbon nanotubes)heterojunctions,which can be employed as microwave absorbers and catalysts,were synthesized via a solvothermal method and applied to activate peroxymonosulfate for the degradation of methylene blue(MB).X‐ray diffraction(XRD),Fourier transform infrared spectrometer(FTIR),scanning electron microscope(SEM),and X‐ray photoelectron microscopy(XPS)analyses revealed that the FexOy were anchored in‐situ onto the N‐GN *** MB as the model organic dye,various factors,such as degradation systems,PMS loading,initial organic pollutant concentration,and catalyst dosage were *** results revealed that the remarkable efficiency was attributable to the synergistic effects of carbon,nitrogen,and iron‐based *** oxidation system corresponded to the pseudo‐first‐order kinetic with a k value of^0.33 min^-*** was demonstrated that both SO4^-and OH^-were the predominant reactive species through quenching *** these heterojunctions were employed as microwave absorbers and have a semiconductor‐like texture,the Fe/N co‐rich hierarchical porous carbon skeleton favored electron transport and *** heterojunctions increase the options for transitional metal catalysts and highlights the importance of designing other heterojunctions for specific applications,such as supercapacitors,energy storage,CO2 capture,and oxygen reduction electrocatalysts.

主 题 词：Heterojunctions Organic pollutant degradation Nitrogen‐doped graphene Synergistic collaboration 

学科分类：081705[081705] 08[工学] 0817[工学-轻工类] 

核心收录：

D　O　I：10.1016/S1872‐2067(18)63114‐6|

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