Eu3+离子掺杂钛酸盐纳米管的直接水热合成与发光性能

宋功保; 王美丽; 苗兰冬; 李健; 张宝述

doi:10.11858/gywlxb.2007.03.015

Eu3+离子掺杂钛酸盐纳米管的直接水热合成与发光性能

doi: 10.11858/gywlxb.2007.03.015

西南科技大学建筑材料四川省重点实验室，四川绵阳 621010

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通讯作者:
宋功保

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出版历程
- 收稿日期: 2006-04-30
- 修回日期: 2006-10-08
- 发布日期: 2007-09-05

Direct Hydrothermal Synthesis and Luminescence Property of Titanate Nanotubes Doped with Eu3+ Ions

Key Laboratory of Building Materials of Sichuan Province, Southwest University of Science and Technology, Mianyang 621010, China

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Corresponding author: SONG Gong-Bao

摘要

摘要: 采用纳米管制备和离子掺杂同步进行的直接水热合成方法，合成了纯钛酸盐纳米管（TNT）和Eu3+离子掺杂的纳米管（TNT-Eu）；并利用X射线衍射（XRD）、透射电子显微镜（TEM）、光致发光谱仪研究了纳米管的形貌特征、物相组成、热稳定性和发光性能。结果显示：这种方法简便易行、稳定性好、产率高。钛酸盐纳米管物相可近似表示为(H,Na)2Ti3O7或(H,Na)2(Ti,Eu)3O7。高温处理对钛酸盐纳米管的结构产生很大的影响，450 ℃下纳米管的层状结构被破坏，晶体结构转化为锐钛矿型的TiO2。TNT-Eu样品的发光性能较强，出现的393.5 nm、593 nm、614 nm的谱带归属于5D0-7F1和5D0-7F2电子的跃迁。
- 直接水热合成 /
- 钛酸盐纳米管 /
- Eu3+离子 /
- 掺杂 /
- 发光性能
Abstract: Pure titanate nanotubes and titanate nanotubes doped with Eu3+ ions were synthesized by hydrothermal method. In this process, the preparation of nanotubes is synchronously finished by doping with Eu3+ ions. The morphology, structure, thermal stability and luminescence property of titanate nanotubes were characterized by transmission electron microscope (TEM), X-ray diffraction (XRD), and photoluminescence instrument. The results show that the method is simple, stable and high-yield. The structure of the nanotube could be approximately indexed by (H,Na)2Ti3O7 or (H,Na)2(Ti,Eu)3O7. Treatment of high temperature will bring into big changes to structures of titanate nanotubes. When the calcine temperature is higher than 450 ℃, tubulous structure of titanate nanotube was destroyed and transformed into structure of anatase phase. Sample of TNT-Eu shows strong luminescence property. There exist three peaks (393.5 nm, 593 nm, 614 nm) in its luminescence spectrum which are associated to 5D0-7F1 and 5D0-7F2 Eu3+ electronic transition respectively.
- direct hydrothermal synthesis /
- titanate nanotube /
- Eu3+ ion /
- doping /
- luminescence property

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