静电纺丝法制备稀土氟化物纳米纤维与

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1、长春理工大学硕士学位论文静电纺丝法制备稀土氟化物纳米纤维与表征姓名：周博秘申请学位级别：硕士专业：无机化学指导教师：董相廷;王进贤20080401撼簧缡黎鳋缭每疆疲瓣俸毒

2、鞑程毪裘理毽一黧耱豫簿谯爨，懿黪豢文兹爨裘嚣辍期表瑟瑟活毪戳及优越的力学性能簿，鞠露弓l麓7人们豹广泛笑洼。稀i裁识耪村辩怒嚣鬻夔簧豹发巍蕤鬟榜糕，磷瓣搬蹙瓣体墩瓣疆颁域羹簧翁疆究对象之一，辐撂必溺港裁，钢铁帮裔愁金霾台众添绷剡，臻瞧溉捞辩，纯擎传感器秘黧物姆躲嚣游骞鬻巍蒡l广泛。将稀主氟豫褥翩备残辅洙绛维，并磷巍其橼质及应掰，将是一个激隳的研究课题。零激遴遗滚胶一凝

3、胶避穗，采鞠黪毫绥缝法戳聚苏烯魄喽烧瀵(PVP)、氟纯濑失躁辩测蘩Pv＆无彀楚复螽野缍，褥憩终缀避姆热戆理获得了LaF3帮LaOF复会辅米纤维，箨以此为纂艨枣

4、糕，制备粥掺杂R岔+妒吨矿∥+)豹发光纳米纤缝，嚣∥肇掺髑鞭’晦弦黢渗戆圭转巍魏寒野缭。慕薅SEM、XRD、TG-DTA罄努辑簪段瑟麟锻褥戆薅寒野壤逡器了装黎，缭巢表唆，己蛾穰LaOF囊台薅寒野壤、掺杂嚣囊糯黔豉麓霹^琶，。霄冬熬爱念继米绛维海瓶则的一维结榴，直径炎130～170nm，平均直径150hm。直径分寐璃翻。鬻漱下辩掺杂R岔秣黟+_E≯，鞲0翡L搽3嬲LaOF复台纳岽纾

5、维遴器7荧溅光谱酚攒，途鹾箨纤壤翡荧是巍滋港峰徽嚣岛黻懿捷糖糕基零一致。在霉溆下用9S0nm激光器分别激发掺杂E，的LaF3和LaOF簸合纳米纤维和∥+，Y矿双掺冉臼LaF3瓣LaOF复会缎米终绦，实瑗了上转羧麓光，发赛

6、走谱诺I峰鬣曼与鬏粒坎褥瓣鏊零～致，获萼霉7～黧露意义魏耩缮莱，麓令藤遴一步磷畿鬣纯浆续拳纾维豹拣痰夔建了鏊磁。荚缝瓣{罄慧缕丝接攀；续岽舞鼗；辩史羲能镶；襞爱l主蕤羧发瓷A黔STRACTInrecentyears,investigationOnnanofihershasarousedmuch8眭a嘲ionofthes

7、cientistsallovertheworldduetotheiruniquecharacteristicssuch黼verylargesurface凇tOvolumeratio,flexibili扭inslrfa舱functionalities,andsuperiormechanical蓥a鏖b矗臻翻雠eora删withtherelevantbulkmaterials．Rareearthfluoridesarcveryimportantmalrixforluminescenceaadoneoftheimpor缸tstudiedmau

8、n'ials撕thesolid-electrolytefieldaswell．Theyarealsoused勰lubricants．additivesofthesteelandnonferrousmetallicalloys。Rareearthfluorideshavewidelyapplicationsinthefieldsofe1"gcR'od瞎materials,chemicalandbiologicalscllsors,etc．It鲻llbeanimpor融t测∞￡thata嘴e躐rthfluoridescallbemadein

9、tonanofihersandinvestigationoftheirpropertiesandapplications．Inthe遗s搿疆缸画龇PVP／inorganicsaltscompositenanofiherswerofabrica钯dbysoI-gelprocessandd嫩spmingtectmiqa蠡,哦polyvi磷pyrrolidone(PVP)andlanthanumfluorideasstartingmaterials,LaV川：aOFcompositenanofibersw烈eobtainedbycalcina

10、tionoftherelativePVP／inorganicsaltscompositenanofibers．秽疆@‰颡一秘、粕p隧hunincseentnanofibe搭,醇+弋碡砖andEp+／yb3+-dopedupconversionltmfinescentnanofibersusingk逯矗联捧compositenanofihers鹳matrixwerealsoacquired．TheobtainednaaofiherswcrecharacterizedbySEM,，涨D，TG-DTAandFluorescence镩ec撩印敝

11、婚。懋嗽：露撼端畦蜒曲酬thatthel娃鹣霆∞Fcompositenanofibcrsand磴戳姆皆：￡皆孓◇羚尹疆砖蕊LaF≯LaOFcompositenanofiherswereuniformone-