Preparation method and application of fluorescence-enhanced metal nanocluster/zeolite imidazolate framework composite nanomaterial

A technology of metal nanoclusters and composite nanomaterials is applied in the field of fluorescent materials to achieve the effects of simple process, low energy consumption and mild reaction conditions
CN110628042BActive Publication Date: 2022-03-22NORTHWESTERN POLYTECHNICAL UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Publication Date
2022-03-22

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Abstract

The invention belongs to the technical field of fluorescent materials, and in particular relates to a method for preparing a fluorescence-enhanced metal nanocluster / zeolite imidazolate framework composite nanomaterial. The zeolite imidazolate framework material and the metal nanocluster liquid are subjected to ultrasonication, stirring or static conditions. Under the following reaction, based on the surface ligands of metal nanoclusters and the metal ions / imidazole ligands in the zeolite imidazolate framework material, competitive coordination / electrostatic interaction occurs, and metal nanoclusters / zeolite imidazolate framework composite nanostructures are reassembled. Material. Based on the principle of aggregation-induced luminescence and quantum confinement effect, the metal nanocluster / zeolite imidazolate framework composite material formed by the present invention greatly enhances the luminescent performance of metal nanoclusters, and on this basis, many properties of the zeolite imidazolate framework are still retained. nature. The method has the advantages of simple process, mild reaction conditions, low energy consumption, strong universality, and easy large-scale popularization and application.
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Description

Technical field

[0001] The present invention belongs to the technical field of fluorescent materials, and therefore, it is specifically related to the preparation method of fluorescent reinforced metal nanoclusters / zeolite imidazole skeleton composite nanomaterials. Background technique

[0002] Metal nanocuscriminals are generally constructed from several to several hundred metal atoms, and the size is usually about 2 nm. It has the characteristics of small size, good water soluble, large-scale, and low toxicity, and low toxicity. It is widely used in sensory detection, biomara, cell markers, catalysis, drug controlled release and other fields. In 2001, the Academician of Tangbenzhong and its team found a molecule with AIE properties (AIEGEN), which was weak and even difficult to observe in the state of the thin solution, but when they were gathered in the solution or in the solid state, bright fluorescence, This phenomenon is referred to as aggregation-Induced Emission (AIE)....

Claims

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