CAJ | 학술논문

采用水热法，并辅以十六烷基三甲基溴化铵（CTAB）合成微/纳米 Gd2O3及其前驱体Gd2-（CO3）3· H2O 。利用X-射线衍射仪（XRD）、热分析仪（TG）、扫描电镜（SEM）、透射电镜（T EM ）、荧光分光光度计等表征手段，分别对产物的晶形、形貌、尺寸和荧光性质等进行分析与表征。结果表明，利用水热法合成的Gd2 O3前驱体Gd2（CO3）3· H2 O在不同反应温度下分别形成细捆束状、羽毛状和树状，经煅烧后制得的微/纳米Gd2 O3的形貌与其前驱体Gd2（CO3）3· H2 O相一致，其荧光性随反应温度的升高而增强。
채용수열법，병보이십륙완기삼갑기추화안（CTAB）합성미/납미 Gd2O3급기전구체Gd2-（CO3）3· H2O 。이용X-사선연사의（XRD）、열분석의（TG）、소묘전경（SEM）、투사전경（T EM ）、형광분광광도계등표정수단，분별대산물적정형、형모、척촌화형광성질등진행분석여표정。결과표명，이용수열법합성적Gd2 O3전구체Gd2（CO3）3· H2 O재불동반응온도하분별형성세곤속상、우모상화수상，경단소후제득적미/납미Gd2 O3적형모여기전구체Gd2（CO3）3· H2 O상일치，기형광성수반응온도적승고이증강。
Gd2 O3 micro-nano particles and their precursor Gd2 (CO3 )3 · H2 O are synthesized by CTAB-as-sisted hydrothermal method .The structures ,morphologies and size of the Gd2O3 and their precursors were characterized by XRD ,TG ,SEM ,TEM and fluorescence spectrophotometer .The experimental re-sults show that the thin bundle bundles ,feathery and dendritic-like Gd2 (CO3 )3 · H2 O are obtained by the CTAB-assisted hydrothermal method at different temperature .The same morphology Gd2 O3 micro-nano particles are then prepared by calcining the precursors .The fluorescence properties of Gd2 O3 micro-nano are significantly enhanced as the reaction temperature rise .