壳聚糖/LaF3 ∶ Eu3+纳米复合粒子的简易合成及发光特性

付艳鹏; 李 敏; 周海强; 喻学锋

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壳聚糖/LaF₃ ∶ Eu³⁺纳米复合粒子的简易合成及发光特性

论文 | 更新时间：2020-08-12

- 壳聚糖/LaF₃ ∶ Eu³⁺纳米复合粒子的简易合成及发光特性
- Facile Synthesis and Spectroscopic Properties of Chitosan/LaF3∶Eu3+ Nanocomposite Particles
- 发光学报 2009年30卷第1期页码：91-96
- 作者机构：
 
 1. 新疆大学物理科学与技术学院
 2. 武汉大学物理科学与技术学院
- 作者简介：
 
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付艳鹏, 李敏, 周海强, 等. 壳聚糖/LaF₃ ∶ Eu³⁺纳米复合粒子的简易合成及发光特性[J]. 发光学报, 2009,30(1):91-96.

Facile Synthesis and Spectroscopic Properties of Chitosan/LaF3∶Eu3+ Nanocomposite Particles[J]. Chinese Journal of Luminescence, 2009,30(1):91-96.
付艳鹏, 李敏, 周海强, 等. 壳聚糖/LaF₃ ∶ Eu³⁺纳米复合粒子的简易合成及发光特性[J]. 发光学报, 2009,30(1):91-96. DOI：

Facile Synthesis and Spectroscopic Properties of Chitosan/LaF3∶Eu3+ Nanocomposite Particles[J]. Chinese Journal of Luminescence, 2009,30(1):91-96. DOI：

摘要

在水溶液中采用化学共沉淀法制备了壳聚糖/LaF,3, ∶ Eu,3+,纳米复合粒子。通过透射电子显微镜(TEM),X射线衍射(XRD),傅立叶变换近红外(FT-IR)光谱对样品进行了表征。结果表明:所得纳米复合粒子大小在 20 nm左右,粒径均匀,表面包覆的壳聚糖使其易溶于水,并具备了与生物蛋白偶联的多个基团。测量了该纳米复合粒子的激发光谱与发射光谱,详细说明了各发光峰对应能级的跃迁及其发光机理,分析了不同掺杂浓度对其相对发光强度的影响。结果表明:当 Eu,3+,离子掺杂摩尔分数为 10%时,样品的相对发光强度达到最大值。最后介绍了壳聚糖/LaF,3, ∶ Eu,3+,纳米复合粒子与荧光蛋白 FITC偶联的方法,以表明其在生物学中潜在的应用价值。

Abstract

paper

关键词

光致发光铕壳聚糖纳米复合粒子

Keywords

photoluminescenceEuchitosannanocomposite particles

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