Rare-earth terbium complex, polyurethane foam doped with rare-earth terbium complex and application thereof

Abstract

The invention provides a rare-earth terbium complex, polyurethane foam doped with the rare-earth terbium complex and application thereof. The rare-earth terbium complex has a molecular formula of Tb(BAA)<3>.2H2O. The polyurethane foam is prepared by the following steps: synthesizing an aminobenzoic acid derivative BAA by taking o-aminobenzoic acid and isatoic anhydride as main raw materials, performing coordination with TbCl3.6H2O according to a molar ratio of 3:1, synthesizing a terbium complex Tb(BAA)<3>.2H2O, and doping the terbium complex in polyurethane foam, thereby obtaining the polyurethane foam with the advantages of excellent luminescence property and high thermal stability. The rare-earth terbium complex and the polyurethane foam doped with the rare-earth terbium complex are used for detecting H2PO4<->, CH3COO<-> and / or F<->. According to the rare-earth terbium complex and the polyurethane foam of the rare-earth terbium complex disclosed by the invention, the luminescence stability of terbium ions is improved, the luminescence lifetime is prolonged, the preparation cost is low, and the method is simple and easy to operate and has wide application prospects in the fields such as biological materials, medical treatment, agriculture, daily use chemicals and the like.

Description

technical field [0001] The invention belongs to the technical field of rare earth complexes, in particular to rare earth terbium complexes, polyurethane foam doped with rare earth terbium complexes and applications thereof. Background technique [0002] Rare earth is a new type of functional material with optical, magnetic, electrical and biological properties at the same time. Because of its unique structure with similar 4f electron energy levels, rare earth ions have optical, electrical, magnetic, high color purity and long life. characteristics, so that rare earth luminescent materials are widely used in the fields of fluorescent probes, solid sensors and nano-luminescent materials. However, rare earth ions have disadvantages such as small absorption coefficient, extremely weak fluorescence, and extremely unstable luminescence. As a rare earth ion, terbium is usually used in green phosphors. Terbium ions have extremely weak luminescence, unstable luminescence, and short l...

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Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the technical problem to be solved in the present invention is: aiming at the problems such as extremely weak luminescence, unstable luminescence and short lifespan of the rare earth ion terbium, and to provide a stable luminescence and long luminescence life, which is based on aminobenzoic acid Rare Earth Terbium Complexes with Derivatives (BAA) as Organic Ligands

[0004] The present invention also provides a polyurethane foam doped with a rare earth terbium complex to solve the problems that the rare earth terbium complex is in powder form, which is not conducive to transportation and recycling, and has poor stability in water and is not resistant to high temperatures.

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