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| 低成本LaPO4-LnPO4核壳结构荧光颗粒的合成与表征 | |
| 引用本文： | 杜鹏飞,李玲,唐睿康,董燕超,方云,夏咏梅,朱飞健.低成本LaPO4-LnPO4核壳结构荧光颗粒的合成与表征[J].中国稀土学报,2011,29(5). |
| 作者姓名： | 杜鹏飞 李玲 唐睿康 董燕超 方云 夏咏梅 朱飞健 |
| 作者单位： | 1. 江南大学化学与材料工程学院,江苏无锡,214122 2. 浙江大学化学系,浙江杭州,310027 3. 大明荧光材料有限公司,浙江杭州,311200 |
| 基金项目： | 国家自然科学基金项目(20871059); 中央高校基本科研业务费专项资金(JUSRP21113); 国家大学生创新性实验计划项目(091029516); 江南大学科学研究基金项目(2009LYY04)资助 |
| 摘 要： | LnPO4( LnPO4=LaPO4:Ce,Tb)是被广泛应用的绿色荧光材料,由于所用的主要原材料之一Tb4O7的价格较为昂贵,导致其生产成本居高不下.如能有效合理地降低稀土磷酸盐绿色荧光粉的生产成本,则可望为照明工业带来显著的效益.报道了一种新型的核壳结构材料LaPO4-LnPO4,该材料以较为廉价的LaPO4作为内部核层,三聚磷酸盐水解缓慢释放的磷酸根与稀土离子通过均相沉淀异相成核的方法在LaPO4表面结合形成LnPO4壳层.所得核壳结构颗粒的荧光发射光谱与纯LnPO4完全一致.在还原性气氛中灼烧后,其发光强度可与市售LnPO4商业产品相当.本方法可将稀土磷酸盐绿色荧光粉的合成成本降低45％左右,而且操作简单,易于进行大规模工业化生产推广,对发光照明行业具有潜在的重要应用价值. |
| 关 键 词： | 核壳结构 荧光粉 稀土磷酸盐 铽 |
Synthesis and Characterization of LaPO4-LnPO4 Core-Shell Phosphors with Low Synthetic Cost |
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| Du Pengfei,Li Ling,Tang Ruikang,Dong Yanchao,Fang Yun,Xia Yongmei,Zhu Feijian.Synthesis and Characterization of LaPO4-LnPO4 Core-Shell Phosphors with Low Synthetic Cost[J].Journal of the Chinese Rare Earth Society,2011,29(5). | |
| Authors: | Du Pengfei Li Ling Tang Ruikang Dong Yanchao Fang Yun Xia Yongmei Zhu Feijian |
| Institution: | Du Pengfei1,Li Ling1,Tang Ruikang2,Dong Yanchao1,Fang Yun1,Xia Yongmei1,Zhu Feijian3(1.School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122,China,2.Department of Chemistry,Zhejiang University,Hangzhou 310027,3.Daming Fluorescent Materials Co.Ltd.,Hangzhou 311200,China) |
| Abstract: | LnPO4(LnPO4=LaPO4:Ce,Tb) is widely adopted as green phosphor.The high manufacture cost of LnPO4 is mainly caused by the expensive Tb4O7,one of the synthetic raw materials.It is significant to reduce synthetic cost of LnPO4 for illumination industry.A novel core-shell structure LaPO4-LnPO4 was reported.The price of core material,LaPO4,was inexpensive.The free phosphate ions were released by slow hydrolysis of tri-polyphosphate and combined with rare earth ions to form LnPO4 precipitation at surfaces of LaPO4... |
| Keywords: | core-shell phosphor lanthanide phosphate terbium |
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