先进材料引论-活性氮化硼

六方氮化硼:新型类碳材料河北省微纳氮化硼重点实验室“六方氮化硼制备及其应用关键技术”教育部创新团队河北工业大学材料学院活性氮化硼及其在环境治理中的应用国务院《大气污染防治行动计划》规定2017年全国地级及以上城市可吸入颗粒物的浓度比2013年下降10%以上；京津冀区域细颗粒物浓度下降约25%.高比表面积、高活性氮化硼材料H2OFogH2OH2OSOX-NOX-H3O+K+SOX-NOX-K+K+SOX-NOX-SOX-NOX-活性炭吸附氮化硼吸附方向性饱和性共价键效果不明显极性键选择性B+-N-效果显著H2O活性氮化硼强烈的脱硫、脱硝能力在环保领域的应用前景广阔！开发活性氮化硼在脱硫、脱硝方面的应用研究高比表面积、高活性氮化硼材料Oneofthegreatestproblemsthattheworldisfacingtoday.1.8millionchildrendieeveryyearfromdiarrheamainlyduetowatercontamination.Environmentalpollution5Adsorptionforeffectiveenvironmentalpollutioncontrol:convenience,easyoperation,simplicityofdesign几种环境污染净化途径6高比表面积多孔BN的合成T.Kawasaki,etal,J.Ceram.Soc.Jpn,104[10](1996)935Melaminediborate(M∙2B)molecularcrystal:C3N6H6∙2H3BO3Hydrogen-bondedstructureLayer-likemorphologybytheinterlinkedplanartriangularH3BO3andC3N6H6molecules7Step1:Boricacid+melamine→M∙2Bprecursor(80˚Cfor4h)Step2:theprecursorwasheatedat1460˚CinN2for4htoobtainporousBNC3N6H6∙2H3BO3hBN8PrecursorPorousBN--Lietal.Nanotech.24(2013)155603高比表面积多孔BN的合成High-qualityporousBNwithuniformholediameter,highpurity,highsurfaceareaandlarge-scaleyieldBETsurfacearea:1687m2/gPorevolume:0.99cm3/gPoresizes:1.3nm,3.9nm9typeIisothermwithanH4typebroadhysteresisloop--Lietal.Nanotech.24(2013)155603高比表面积多孔BN的合成Highadsorptioncapacity:~88wt%ofMOwasremovedwithin5minthemaximumremovalcapacity:298.3mg/g高比表面积多孔BN对甲基橙的吸附AdsorptionisothermsofMOAdsorptionrateofMOCe:equilibriumconcentration;C0:initialsolutionconcentrationqe:

adsorbedamountofpollutantontheequilibriumconcentration10Initialconcentrationof40mg/LAdsorptionofMethylorange(MO)-largeporevolume-highdensitystructuraldefects-highspecificsurfacearea--Lietal.Nanotech.24(2013)155603Thechemicalactivationreactiontakesmainlyplaceonthesurfaceratherthaninside.ThefunctionalgroupsanddefectswereintroducedontothesurfaceoftheresultingBNfibersviachemicalactivation.11--Lietal.J.Mater.Chem.A5(2015)8492Activatingreagent：mixedsolutionofsulfuricacidandnitricacid

AssistedbyultrasonicationB–NH2B–OHB–O–N高比表面积活性BN的合成BET:From1045to1104m2/gPorevolume:Form0.57to0.63cm3/g12IntroducefunctionalgroupsontoactivatedBN--Lietal.J.Mater.Chem.A5(2015)8492高比表面积活性BN的合成活性BN对亚甲基蓝的吸附13Exhibitinggreatlyimprovedcationicdyeremovalperformance--Lietal.J.Mater.Chem.A5(2015)8492FasterHighercapacity14Thegreatadvantagesofnegatively-chargedactivatedBNadsorbingcationicdyemoleculesbyelectrostaticinteraction--Lietal.J.Mater.Chem.A5(2015)8492活性BN对多种染料的吸附15Theremovalefficiencyof~94%wasstillretainedevenafterfifteenadsorption-regenerationcycles.--Lietal.J.Mater.Chem.A5(2015)8492吸附之后的活性BN的再生及重复利用活性BN过滤膜的制备16ActivatedboronnitridemembranebasedonthecombinationofexcellentadsorptionperformanceofABN,uniqueflowpropertiesoffibrousmembrane,andin-planecouplingbetween1DBNmicro-ribbonandmicrofibrillatedcellulose(MFC).--Lietal.RSC.Adv.5(2015)7153717--Lietal.RSC.Adv.5(2015)71537ExcellentmechanicalflexibilityandtensilestrengthABN/MFC-70withhigherflexibility活性BN过滤膜的制备18Abundantfunctionalgroups--Lietal.RSC.Adv.5(2015)71537Goodhydrophilicity活性BN过滤膜的制备19--Lietal.RSC.Adv.5(2015)71537Efficientremovalofmethyleneblue(MB)fromwastewater活性BN过滤膜的对染料的吸附