典型文献
Graphene enhanced α-MnO2 for photothermal catalytic decomposition of carcinogen formaldehyde
文献摘要:
Formaldehyde(HCHO)causes increasing concerns due to its ubiquitously found in indoor air and being irritative and carcinogenic to humans.Photothermal-catalysis developed in recent years has been con-sidered as a significant strategy for enhancing catalytic activity.Manganese oxides,compared with its strong thermocatalytic activity,generally suffer from much lower photocatalytic activity make its pho-tochemical properties less concerned.Herein,α-MnO2 nanowires were composited with the graphene oxide(GO)via mechanical grinding and co-precipitating method,respectively.α-MnO2/GO nanohybrids prepared by co-precipitating method exhibits excellent activity,achieving 100%decomposition of HCHO with the solar-light irradiation at ambient temperature.It is found that,besides the photo-driven ther-mocatalysis,the photocatalysis mechanism made a major contribution to the decomposition of HCHO.The incorporation of GO,on the one hand,is beneficial to improve the optical absorption capacity and photothermal conversion efficiency;on the other hand,is conductive to electron transfer and effective separation of electrons and holes.These synergistic effects significantly improve the catalytic activity ofα-MnO2/GO nanohybrids.This work proposes a new approach for the utilization of solar energy by com-bining manganese oxides,and also develops an efficient photothermal-catalyst to control HCHO pollution in indoor air.
文献关键词:
中图分类号:
作者姓名:
Xiaoshan Zeng;Chuanjia Shan;Mingdi Sun;Danni Ding;Shaopeng Rong
作者机构:
Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse,School of Environmental and Biological Engineering,Nanjing University of Science and Technology,Nanjing 210094,China
文献出处:
引用格式:
[1]Xiaoshan Zeng;Chuanjia Shan;Mingdi Sun;Danni Ding;Shaopeng Rong-.Graphene enhanced α-MnO2 for photothermal catalytic decomposition of carcinogen formaldehyde)[J].中国化学快报(英文版),2022(11):4771-4775
A类:
irritative,tochemical,mocatalysis
B类:
Graphene,enhanced,MnO2,photothermal,decomposition,formaldehyde,Formaldehyde,HCHO,causes,increasing,concerns,due,ubiquitously,found,indoor,air,being,carcinogenic,humans,Photothermal,developed,recent,years,has,been,sidered,strategy,enhancing,activity,Manganese,oxides,compared,strong,thermocatalytic,generally,suffer,from,much,lower,photocatalytic,make,properties,less,concerned,Herein,nanowires,were,composited,graphene,via,mechanical,grinding,precipitating,method,respectively,nanohybrids,prepared,by,exhibits,excellent,achieving,solar,light,irradiation,ambient,temperature,It,that,besides,driven,photocatalysis,mechanism,made,major,contribution,incorporation,one,hand,beneficial,improve,optical,absorption,capacity,conversion,efficiency,conductive,transfer,effective,separation,electrons,holes,These,synergistic,effects,significantly,This,work,proposes,new,approach,utilization,energy,bining,manganese,also,develops,efficient,catalyst,control,pollution
AB值:
0.595057
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