Luminescent carbon quantum dot and preparation method and application thereof

A technology of carbon quantum dots and small molecules, which is applied in the field of luminescent carbon quantum dots and its preparation, can solve problems such as complex operation process, high energy consumption, and cumbersome operation steps, and achieve easy control of reaction conditions, easy industrial production, and preparation process simple effect
CN109810698AInactive Publication Date: 2019-05-28NORTHEAST FORESTRY UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHEAST FORESTRY UNIVERSITY
Publication Date
2019-05-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a luminescent carbon quantum dot and a preparation method and application thereof, and belongs to the technical field of nano materials. The luminescent carbon quantum dot adopts small organic molecules as raw materials, the raw materials are cheap and easy to obtain, and the production cost can be effectively reduced; a solvothermal reaction is used for preparing the luminescent carbon quantum dot, the reaction raw materials do not need pretreatment, the preparation process is simple, the reaction conditions are easy to control, and the industrialized production is easyto realize; and the preparation method can prepare a liquid luminescent carbon quantum dot and a solid-state luminescent carbon quantum dot, wherein the liquid luminescent carbon quantum dot has concentration-dependent fluorescence emission characteristics and is adjustable in fluorescent color, and the solid-state carbon quantum dot can realize solid-state illumination of the carbon quantum dot.The luminescent carbon quantum dot can be used in the fields of fluorescence detection of heavy metal ions and organic small molecules, fluorescence imaging of non-therapeutic cells and light-emitting diodes.
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Description

technical field

[0001] The invention relates to the technical field of nanometer materials, in particular to a luminescent carbon quantum dot and its preparation method and application. Background technique

[0002] Carbon quantum dots are a new type of carbon nanomaterials with a diameter of less than 10nm, quasi-spherical shape, and monodisperse. Due to their excellent water solubility, chemical inertness, low toxicity, easy functionalization and photobleaching resistance, carbon quantum dots have gradually become a A new star in the family of carbon nanomaterials, it is used in photocatalytic technology, analysis and detection, in vivo imaging and cell labeling, light-emitting diodes and drug delivery and other fields. From both fundamental and applied viewpoints, the fluorescence property is the most prominent feature of carbon quantum dots.

[0003] Studies on multicolor luminescence and carbon quantum dots with solid-state luminescence properties have been reported. ...

Claims

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