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1、ThePreparationofZincOxideReporter:唐海娣Teams:张梦榕、刘晶晶、刘凡凡、鲁健刘柳、宋雪洋、李京京、胡婷婷刘欢、李言、靳宗梓、江晨辉MainContentIntroductionPreparationofzincoxideSummaryPart1Part2Part31.IntroductionZincoxidehasthestrictcrystallographyofpolarity,highmeltingpoint(1975℃),isakindofwidebandgapse
2、miconductormaterial,thebandgapofabout3.3eVatroomtemperature,theexcitonbindingenergyashighas60meVandmorphologyofnano-zincoxide-rich,diversesurfaceorientation.2.1AminoAcid-AssistedSynthesisofZnOZn(CH3COO)2histidinecMixedsolutionprecipitatedropwise150℃for10hcen
3、trifugationdriedinairat60℃for4h.NaOHZn(CH3COO)2·2H2O+histidinec+NaOHWuQ,ChenX,ZhangP,etal.CrystalGrowthandDesign,2008,8(8):3010-3018.2.2Aminoacid-inducedself-assembly2mmolmethioninewasdissolvedin25mLofdeionisedwaterwithstirring3mmolZn(CH3COO)2wasaddedtoobtai
4、nahomogeneoussolutionadditionof1mmolammoniumcarbonateandstirringfor60minthemixtureandactivatedquartzwaferweretransferredinto50-mLTeflon-linedautoclavestoreactunderstaticconditionsat120℃for1hourThequartzwaferscoatedwithHZCwerewashedwithdeionisedwaterandabsolu
5、teethanolseveraltimestoremovetheunreactedreactantsandpowderandthendriedat80℃for12h.Finally,CNZFswereobtainedbycalcinationat550℃inairfor6h.Step1:SubstrateactivationStep2:SynthesisofCNZFsThequartzwafersweresequentiallyrinsedwithamixtureofacetoneandalcohol(V/V=
6、1:1)anddeionisedwaterinanultrasonicbaththesubstrateswereplacedinglassvialsfilledwith20mLof0.04-10mMfreshKMnO4solutionand50μLofn-butanol(asareducingagentfortheKMnO4)at85°Cfor15-20min.Permanganate-treatedquartzwaferswerethenthoroughlyrinsedindeionisedwaterands
7、onicatedfor10min.Mn-(hydroxy)-oxideThequartzwafersM.Kokotov,G.Hodes,J.Mater.Chem.2009,19,3847–38542.2Aminoacid-inducedself-assemblyfirstL-methionineD-methionineDuanY,HanL,ZhangJ,etal.2015,54(50):15170-15175.KokotovM,HodesG.JournalofMaterialsChemistry,2009,19
8、(23):3847-3854.2.3ZnOnanorodarraysaselectroninjectionlayersSpincoatingannealannealreactionrepeate3timesHMT:hexamethylenetetraminePEI:polyethyleneimineSyntheticprocesszincacetatedihydrateand2-ami