| 超声化学法制备BaF_2纳米粒子及纳米方块 |
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| 引用本文： | 郭 琦,耿 珺,姜立萍,朱俊杰.超声化学法制备BaF_2纳米粒子及纳米方块[J].无机化学学报,2010,26(11):2121-2125. |
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| 作者姓名： | 郭 琦 耿 珺 姜立萍 朱俊杰 |
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| 作者单位： | 1. 江苏教育学院化学系,南京210013;南京大学化学化工学院,生命分析化学教育部重点实验室,南京210093
2. 南京大学化学化工学院,生命分析化学教育部重点实验室,南京210093 |
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| 摘 要： | <正>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1]。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2]。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3]。
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| 关 键 词： | BaF2 超声化学 形貌控制 EDTA CTAB |
Sonochemical Syntheses of BaF2 Nanoparticles and Cubes |
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| GUO Qi,GENG Jun,JIANG Li-Ping and ZHU Jun-Jie.Sonochemical Syntheses of BaF2 Nanoparticles and Cubes[J].Chinese Journal of Inorganic Chemistry,2010,26(11):2121-2125. |
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| Authors: | GUO Qi GENG Jun JIANG Li-Ping and ZHU Jun-Jie |
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| Institution: | Department of Chemistry, Jiangsu Institute of Education, Nanjing 210013; Department of Chemistry, Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing 210093,Department of Chemistry, Jiangsu Institute of Education, Nanjing 210013; Department of Chemistry, Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing 210093,Department of Chemistry, Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing 210093 and Department of Chemistry, Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing 210093 |
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| Abstract: | 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. |
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| Keywords: | BaF2 sonochemistry morphology-control EDTA CTAB |
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