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Article

Preparation of PVA Fluorescent Gel and Luminescence of Europium Sensitized by Terbium (III)

1
Collage of Material science & engineering, Northeast Forestry University, Harbin 150040, China
2
Key Laboratory of Biobased Material Science & Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, China
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(4), 893; https://doi.org/10.3390/polym12040893
Received: 24 March 2020 / Revised: 4 April 2020 / Accepted: 10 April 2020 / Published: 12 April 2020
Polyvinyl alcohol (PVA) gel has a very wide range of applications in agriculture, military, industry, and other fields. As a widely used water-soluble polymer, PVA has good mechanical properties, excellent spinnability, good hydrophilicity, remarkable physical and chemical stability, good film formation, is non-polluting, and exhibits good natural degradation and biocompatibility. It is an ideal gel preparation material. Incorporation of rare-earth elements into PVA polymers can be used to prepare rare-earth luminescent gel materials. Results show that the luminescent efficiency of complexes is mainly related to their structure, ligand substituents, synergists, and the electronic configuration of doped rare-earth ions. Fluorescent gel films were prepared by adding europium, terbium, and europium/terbium co-doped into PVA, and their fluorescence properties were compared and analyzed. It was found that, in addition to the above factors, the sensitization of terbium to europium, and the fluorescence-quenching effect of hydroxyl groups, will influence the fluorescence properties. This has opened a new route for the application of rare-earth materials and may have value in the field of new materials. View Full-Text
Keywords: PVA gel; europium; terbium; sensitization; quenching PVA gel; europium; terbium; sensitization; quenching
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MDPI and ACS Style

Wei, Y.; Fu, Z.; Zhao, H.; Liang, R.; Wang, C.; Wang, D.; Li, J. Preparation of PVA Fluorescent Gel and Luminescence of Europium Sensitized by Terbium (III). Polymers 2020, 12, 893. https://doi.org/10.3390/polym12040893

AMA Style

Wei Y, Fu Z, Zhao H, Liang R, Wang C, Wang D, Li J. Preparation of PVA Fluorescent Gel and Luminescence of Europium Sensitized by Terbium (III). Polymers. 2020; 12(4):893. https://doi.org/10.3390/polym12040893

Chicago/Turabian Style

Wei, Yifan, Zhengquan Fu, Hao Zhao, Ruiqi Liang, Chengyu Wang, Di Wang, and Jian Li. 2020. "Preparation of PVA Fluorescent Gel and Luminescence of Europium Sensitized by Terbium (III)" Polymers 12, no. 4: 893. https://doi.org/10.3390/polym12040893

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