摘要
0引言
BaF2的用途非常广泛,可用于光学玻璃、陶瓷色料、玻璃光导纤维、激光发生器、助熔剂及防腐剂等。BaF2是最快的闪烁体,在核物理和核技术中用来检测γ射线和带电粒子。将掺杂稀土金属的纳米BaF2粒子嵌入有机或玻璃基体以发挥其发光性能的研究越来越引起重视。碱土氟化物和许多半导体的晶格匹配性良好,可以用不同碱土氟化物层来连接晶格常数不同的半导体。
BaF2 nanoparticles were synthesized via a mild sonochemical route from an aqueous solution of Ba（NO3）2 and NH4F in the presence of complexing agent EDTA under ambient air. XRD, TEM and SEM were used to characterize the structure and shape of the product. The as-prepared BaF2 nanocrystals crystallize in a cubic structure and have an average crystal size of 10 nm. The amount of EDTA plays an important role in controlling the shape and size of the product. Comparative experiments using CTAB as surfactant instead of complexing agent EDTA showed cubic-shaped product with diameter of 400-500 nm.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2010年第11期2121-2125,共5页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.20635020
20805022)资助项目
