共沉淀法制备SrZrO_3：Ce纳米粒子

以NH3.H2O和NH4HCO3混合溶液做复合沉淀剂,用共沉淀法制备了SrZrO3：Ce纳米粒子。用热重-差热分析和扫描电子显微镜、透射电子显微镜分析了前驱体的物相变化、粒子形貌,用荧光光度计分析了样品的激发和发射光谱。结果表明：当金属盐溶液的起始浓度为0.10mol/L,体系温度为0℃,滴定速率为3mL/min时,添加1.05×10-3mol.L十二烷基苯磺酸钠做分散剂,pH=11.0,在1000℃煅烧3h,合成出具有良好的分散性、粒径约40nm、近似球形的SrZrO3：Ce粒子。当Ce3＋掺杂摩尔分数为0.5%时,样品的相对发光强度最大,且激发光谱和发射光谱峰值分别对应247、487 nm...

Full description

Saved in:
Bibliographic Details
Published in硅酸盐学报 Vol. 40; no. 1; pp. 101 - 107
Main Author 滕飞 马伟民 马雷 朱红艳 吴南
Format Journal Article
LanguageChinese
Published 2012
Subjects
光谱性能
共沉淀法
制备参数
复合沉淀剂
纳米粒子
铈
锆酸锶
Online AccessGet full text

Cover

More Information
Summary:以NH3.H2O和NH4HCO3混合溶液做复合沉淀剂,用共沉淀法制备了SrZrO3：Ce纳米粒子。用热重-差热分析和扫描电子显微镜、透射电子显微镜分析了前驱体的物相变化、粒子形貌,用荧光光度计分析了样品的激发和发射光谱。结果表明：当金属盐溶液的起始浓度为0.10mol/L,体系温度为0℃,滴定速率为3mL/min时,添加1.05×10-3mol.L十二烷基苯磺酸钠做分散剂,pH=11.0,在1000℃煅烧3h,合成出具有良好的分散性、粒径约40nm、近似球形的SrZrO3：Ce粒子。当Ce3＋掺杂摩尔分数为0.5%时,样品的相对发光强度最大,且激发光谱和发射光谱峰值分别对应247、487 nm和496 nm波长处。
Bibliography:TENG Fei, MA Weimin, MA Lei, ZHU Hongyan, WU Nan （Key Laboratory for Rare-Earth Chemical and Applying, Liaoning Province; School of Material Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China）
11-2310/TQ
stronittm zirconium; cesium; nano-particles; co-precipitation reaction; complex precipitation agent; preparation parameters; photoluminescence spectrum
The nano-particles of SrZrO3：Ce were synthesized with NH3·H2O and NH4HCO3 blended solution as a complex precipita- tion agent by co-precipitation reaction to prepare precursors under different conditions. The phase composition and the particle mor-phology of the precursors before and after calcining were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and thermogravimetry differential thermal analysis. The excitation and emission spectra of the resultant samples were analyzed by a fluorophotometer. The results show that the as-prepared well-dispersed powder appears spheric
ISSN:0454-5648