Preparation of Novel PVA Fluorescent Gels and Their Photophysical Properties

ZOU Dan-dan; SU Yan; YANG Chao-long; LI You-bing

doi:10.3788/fgxb20173801.0021

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Preparation of Novel PVA Fluorescent Gels and Their Photophysical Properties

更新时间：2020-08-12

- Preparation of Novel PVA Fluorescent Gels and Their Photophysical Properties
- Chinese Journal of Luminescence Vol. 38, Issue 1, Pages: 21-26(2017)
- 作者机构：
  
  重庆理工大学材料科学与工程学院重庆,400054
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Fundation(21404017);Inovation Ability Constr
- DOI：10.3788/fgxb20173801.0021
  CLC： TP394.1;O634
- Received：30 June 2016，
  
  Revised：19 July 2016，
  
  Published：05 January 2017
- 稿件说明：
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邹丹丹, 苏艳, 杨朝龙等. 新型PVA荧光凝胶的制备及光物理性能研究[J]. 发光学报, 2017,38(1): 21-26

ZOU Dan-dan, SU Yan, YANG Chao-long etc. Preparation of Novel PVA Fluorescent Gels and Their Photophysical Properties[J]. Chinese Journal of Luminescence, 2017,38(1): 21-26
邹丹丹, 苏艳, 杨朝龙等. 新型PVA荧光凝胶的制备及光物理性能研究[J]. 发光学报, 2017,38(1): 21-26 DOI： 10.3788/fgxb20173801.0021.

ZOU Dan-dan, SU Yan, YANG Chao-long etc. Preparation of Novel PVA Fluorescent Gels and Their Photophysical Properties[J]. Chinese Journal of Luminescence, 2017,38(1): 21-26 DOI： 10.3788/fgxb20173801.0021.

摘要

为了开发一系列能够在纯水介质中使用的荧光凝胶材料，以TbCl

O和乙酰丙酮（ACAC）为初始原料合成了铽配合物Tb（ACAC）

O，并对其结构进行了表征。然后将铽配合物Tb（ACAC）

O以不同的质量分数引入到PVA基质中，在交联剂硼酸的作用下形成荧光凝胶。利用FTIR、PL、DSC、TGA等对其结构、发光性能及其热性能进行了研究。FTIR结果表明，铽配合物成功地掺杂到了PVA凝胶体系中。荧光发射光谱表明，所有铽配合物的PVA荧光凝胶都具有很好的荧光性能，更重要的是掺杂了3%、5%、7%铽配合物的PVA荧光凝胶位于545 nm处的特征发射峰的发射强度相比于小分子铽配合物Tb（ACAC）

O的发射强度更高，分别是其2.15、3.27和5.65倍。表明PVA基质对铽配合物具有较好的敏化作用。此外，DSC和TGA研究结果表明，铽配合物的引入使得PVA凝胶的热稳定性略有下降，但影响不大。

Abstract

In order to develop a series of fluorescent gel which can be used in pure water

a terbium complex Tb(ACAC)

O was successfully synthesized using TbCl

O and acetylacetone as the raw materials

and its structure was characterized by FT-IR. Then

the fluorescence gel was prepared by doping the terbium complex Tb(ACAC)

O into the PVA matrix with different mass fraction and under the action of cross-linking agent boric acid. The structure

luminescent properties and thermal properties of PVA fluorescent gel were conducted by FT-IR

fluorescence spectrum

DSC and TGA. The results of FT-IR show that the terbium complex has been successfully introduced into PVA gel system. In addition

the PVA fluorescence gels with terbium complex all have good fluorescence properties. Especially

the emission intensity at 545 nm of PVA fluorescent gel is higher than the precursor Tb(ACAC)

is 2.15 times for 3%

3.27 times for 5%

and 5.65 times for 7%

respectively. These results reveal that the Tb-complex can be effectively sensitized by PVA matrix in this system. In addition

the DSC and TGA results indicate that the introduction of terbium complex has little decrease for the thermal stability of PVA fluorescence gel.

关键词

Keywords

references

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