典型文献
In-situ synthesis of N,S co-doped hollow carbon microspheres for efficient catalytic oxidation of organic contaminants
文献摘要：
Metal-free heteroatom doped nanocarbons are promising alternatives to the metal-based materials in catalytic ozonation for destruction of aqueous organic contaminants.In this study,N,S co-doped hol-low carbon microspheres(NSCs)were synthesized from the polymerization products during persulfate wet air oxidation of benzothiazole.The contents of doped N and S as well as the structural stability were maneuvered by adjusting the subsequent N2-annealing temperature.Compared with the prevailing single-walled carbon nanotubes,the N2-annealed NSCs demonstrated a higher catalytic ozonation activity for benzimidazole degradation.According to the quantitative structure-activity relationship(QSAR)anal-ysis,the synergistic effect between the graphitic N and the thiophene-S which redistributed the charge distribution of the carbon basal plane contributed to the activity enhancement of the N2-annealed NSCs.Additionally,the hollow structure within the microspheres served as the microreactor to boost the mass transfer and reaction kinetics via the nanoconfinement effects.Quenching and electron paramagnetic res-onance(EPR)tests revealed that benzimidazole degradation was dominated by the produced singlet oxy-gen(1O2)species,while hydroxyl radicals(·OH)were also generated and participated.This study puts forward a novel strategy for synthesis of heteroatom-doped nanocarbons and sheds a light on the rela-tionship between the active sites on the doped nanocarbons and the catalytic performance.
文献关键词：
中图分类号：
作者姓名：
Yongbing Xie;Ya Liu;Yujie Yao;Yanchun Shi;Binran Zhao;Yuxian Wang
作者机构：
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Panzhihua 617000,China;CAS Key Laboratory of Green Process&Engineering,Beijing Engineering Research Center of Process Pollution Control,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;State Key Laboratory of Heavy Oil Processing,State Key Laboratory of Petroleum Pollution Control,China University of Petroleum-Beijing,Beijing 102249,China;School of Chemical Engineering and Advanced Materials,The University of Adelaide,Adelaide,SA 5005,Australia;School of Chemical Engineering,Northwest University,Xi'an 710069,China
文献出处：
引用格式：
[1]Yongbing Xie;Ya Liu;Yujie Yao;Yanchun Shi;Binran Zhao;Yuxian Wang-.In-situ synthesis of N,S co-doped hollow carbon microspheres for efficient catalytic oxidation of organic contaminants)[J].中国化学快报（英文版）,2022(03):1298-1302
A类：
nanocarbons,benzothiazole,maneuvered
B类：
In,situ,synthesis,doped,hollow,microspheres,efficient,catalytic,oxidation,organic,contaminants,Metal,free,heteroatom,promising,alternatives,metal,materials,ozonation,destruction,aqueous,this,study,NSCs,were,synthesized,from,polymerization,products,during,persulfate,wet,air,contents,well,structural,stability,by,adjusting,subsequent,N2,annealing,temperature,Compared,prevailing,walled,nanotubes,annealed,demonstrated,higher,activity,benzimidazole,degradation,According,quantitative,structure,relationship,QSAR,anal,ysis,synergistic,between,graphitic,thiophene,which,redistributed,charge,distribution,basal,plane,contributed,enhancement,Additionally,within,served,microreactor,boost,mass,transfer,reaction,kinetics,via,nanoconfinement,effects,Quenching,electron,paramagnetic,onance,EPR,tests,revealed,that,was,dominated,produced,singlet,1O2,species,while,hydroxyl,radicals,also,generated,participated,This,puts,forward,novel,strategy,sheds,light,active,sites,performance
AB值：
0.578442
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