水热法微/纳米Gd_2(CO_3)_3·H_2O和Gd_2O_3的合成与表征  

Synthesis and characterization of Gd_2(CO_3)_3·H_2O and Gd_2O_3 by solvothermal method

作　　者：朱文庆[1] 陈浩军[1] 邢西萍[1] 瞿芳[1] 李卓[1] 

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《西安工程大学学报》2014年第2期187-191,共5页Journal of Xi’an Polytechnic University

基　　金：陕西省科技攻关项目(2011K07-23);陕西省教育厅专项科研计划项目(11JK0566);西安工程大学博士基金资助项目(BS1010)

摘　　要：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(TEM)、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Gd2O3前驱体Gd2(CO3)3·H2O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Gd2O3的形貌与其前驱体Gd2(CO3)3·H2O相一致,其荧光性随反应温度的升高而增强.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 .

关 键 词：水热法 Gd2(CO3)3·H2O Gd2 O3 荧光性 

分 类 号：O643.1[理学—物理化学]