高純度納米氧化鐵黃與鐵紅的研制.pdf

1、分類號(hào)UDC密級(jí)編號(hào)幸韻六擎CENTRALSOUTHUNIVERSITY碩士學(xué)位論文論文題目商純度納卷氧化鐵黃與鐵紅的研制學(xué)科、專業(yè)撾壯物堡點(diǎn)氆聾研究生姓名方敏一導(dǎo)師姓名及專業(yè)技術(shù)職務(wù)墼璺臣熬撬I搏曼jS38238中南大學(xué)碩士學(xué)位論文ABSTRACTABSTRACTNanocrystallineironoxide，asagreattypeofnanometermaterialwjtllgoodoptical，magneticandcat

2、alyticpropegies，hasbeenstudiedinrecentyearsThepurificationofrawmaterialandtheprocessofironoxidepreparationhavebeenstudiedinthepresentresearchThemethodofpurificationstudiedinthepresentpaperasfollowsAtfirst，heatingthesolut

3、iontomaketitaniumhydrolyzed，addingflocculanttomakesedimentationdepositedspeedyAtthesametime，addingFepowdertodeoxidizeFe”Then，tuningpHvalueusingammoniatogetridofimpuritysuchasTi，A1，Bi，Sn，etcThecontentofthemainimpuritysuch

4、asTi，AI，Bireducestobelow5mg。L’1afterpurificationUsingpureferroussulphate，nanocrystallineironoxidehasbeenpreparedbythemethodofairoxidationTheeffectsofcontentofFe”，airflowrate，bubblingtimeonthepreparationofcrystalseedshave

5、beenstudiedTheeffectsofcontentofcrystalseed，pH，airflowrate，oxidationtimeanddispersantonthepreparationofironoxideyellowhavebeenstudiedTheeffectofCalcining—timeonthepreparationofironoxideredhasbeenstudiedThetechnologyparam

6、etersasfollows：bubblingtemperature40。C，initialpHvaluebetween748，airflowrate1L／min25hlaterthecrystalseedsarecompleteprepared1hestepofthepreparationofironoxideyellowparticles：crystalseedwithascaleof33％，addingdispersant⑨，co

7、ntrolingmepHvaluebetween25～27usingconcentratedammonia，airflowrate2L／min，bubblingtime16hCalciningironoxideyellow2h，thereisironoxideredGeneralexperimentismadeoutbasedontheforeexperimentatlastIronoxideyellowisctFeOOHParticl

8、esareyellowshuttleshape，110nmlongthand20nmdiameterthecontentis9955％IronoxideredisⅡ一Fe203Particlesarered，claviform，180nmlongthand15nmdiameterthecontentis9950％Particlesarewelldispersed，alittleaggregation，andtherangeofgranu