Preparation method and application of porous solid luminescent material

Abstract

The invention relates to a porous solid luminescent material which is a random polymer constructed and formed by mutual crosslinking of tetrabromoethylene tetrabenzyl bromide and an alcoholic hydroxyl group of beta-cyclodextrin, and a construction base element of the random polymer is a tetraphenyl ethylene cross-linked beta-cyclodextrin polymer; the porous solid luminescent material is used for absorbing dye sulforhodamine B molecules. The porous solid luminescent material provided by the invention has the advantages that the porous solid luminescent material is simple and convenient in preparation method and relatively high in yield and has solid-state fluorescence; the porous material can emit green fluorescence through 365-nm illumination under a solid state and has excellent absorption performance for a dilute solution of sulforhodamine B; the effect of absorbing the sulforhodamine B is good, solid-state fluorescence energy transfer can be generated with the sulforhodamine B molecules, and the fluorescence color gradually changes from green to yellow to orange-red along the change of the quantity of the absorbed sulforhodamine B; the solid luminescent material has wide application prospects in the field.

Description

technical field [0001] The invention belongs to luminescent materials, in particular to a preparation method of a porous solid luminescent material and its application for adsorption of dye sulforhodamine B molecules. Background technique [0002] Solid luminescence is a phenomenon in which electromagnetic waves, charged particles, electrical energy, mechanical energy, and chemical energy act on solids and are converted into light energy. See: B.W.D'Andrade, S.R. Forrest, Advanced Materials, 2004, 16, 1585-1595. After absorbing external energy, solids mostly dissipate in the form of heat, and not all solid materials can attenuate in the form of light waves after absorbing energy. Therefore, it is extremely important to use solid luminescent materials to effectively convert ultraviolet light into visible light of different colors. See: P. Zhang, K. Wu, J. Guo, C. Wang, ACS Macro Letters, 2014, 3, 1139- 1144. [0003] In 2001, Professor Tang Benzhong's research group reporte...

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Problems solved by technology

However, there are few reports on the preparation of a porous multicolor solid luminescent material by combining solid luminescent elements and macrocyclic molecules by adsorbing dye molecules.

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