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ID:36587296
大小:8.04 MB
页数:76页
时间:2019-05-12
《羟基磷灰石与氧化锌的水热-溶剂热合成研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、西南交通大学硕士学位论文羟基磷灰石与氧化锌的水热/溶剂热合成研究姓名:张建达申请学位级别:硕士专业:材料学指导教师:汪建新20090501西南交通大学硕士研究生学位论文第lI页溶液替代乙二醇与乙酸锌反应,可得到Zn(OH)F苹果状微球,粒径为2微米。4.两步反应的到氧化锌是有微米片状堆积起来的松果状结构。微米片直径约为0.5mm-1.2mm,厚度为100nnl一200hill。并提出了“位效”理论,用于解释紧密堆积的形成。5.溶剂热制备的高产率高稳定性纳米氧化锌分散液,其氧化锌纳米晶的粒径在5nm~50nm内可控,该纳米氧化锌不需添加任何
2、分散剂即可分散在一些普通的溶剂中,如:水、无水乙醇、丙酮等,较长时间不团聚、不沉淀。关键词:水热。溶剂热。羟基磷灰石。氧化锌。晶粒形貌。西南交通大学硕士研究生学位论文第lIl页AbstractThehydrothermal/solvothermaltechnologyisbecomingoneofthemostimportanttoolsfortheprocessingofadvancedmaterialsaswellasthepreparationofnanomaterials.Itisenvironmentallybenignandi
3、nexpensive.Thesizeandthe.morphologiesofthenarloparticlesobtainedviathehydrothermal/solvothermalmethodwerehomogeneousandcontrollable.Andtheproductsobtainedviathetechniqueshadhigherpurityandbettercrystallinitycomparedtoothermethods.Itisanewroutetosynthesizenanomaterialswith
4、noveltyproperties.Inthisstudy,hydrothermalandsolvothermalapproacheswereusedtosynthesishydroxyapatiteandzincoxidewithnano-scalesizesandcomplexnanostmctures.Theseexperimentsincluded:1.thepreparationofhydroxyapatiteandCDHAbyusingCa(N03)2andP205/0q出)H2P04asprecursors,andethyl
5、enediamineasthetemplate.2.thesynthesisoflargescalehydroxyapatitewhiskersbyusingCa(N03)2and(Ⅻ凰)H2P04astheprecursorsandthesulfanilamideastheprecursorandthetemplateviaatwo—stepapproach.3.thefabricationofZnOspheresandhollowspheresbyusingzincacetate,zincnitrateandethyleneglyco
6、lastheprecursorsandionicliquid(IL)1-butyl-3-methylimidazoliumtetrafluoroborate(CsI-IIsN2BF4)[bmim][BF4]astheprecursorandthetemplate.4.tl诧two-stepsynthesisbfZnOwithapinecone—like打chitectureusingzincacetateandsulfanilamideastheprecursors.5.thesynthesisofnano-ZnOsuspensionby
7、usingzincacetate,ethylenealcoholandethylalcoholastheprecursorsorasthesolventsduringsolvothermalprocessing.TheresultantsampleswerecharacterizedbyX-raydiffraction(XRD),scanningelectronmicroscopy(SEM),transmissionelectronmicroscopy(TEM),FourierinfraredspectrophotometerfFTIR)
8、,ultraviolet西南交通大学硕士研究生学位论文一第1V页spectrophotometer(try3andBrunauer-Emmett-Teller(BET)andBarrett-J
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