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A kind of rosin-based carbon dot material and its preparation method and application

A technology based on rosin and carbon dots, applied in the field of carbon dot materials, can solve the problems of complex preparation method, low CDs yield, long time-consuming purification and separation, etc., and achieves a simple and easy-to-operate preparation method, abundant raw materials, and environmentally friendly operation steps. Effect

Active Publication Date: 2020-08-11
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the carbon dots prepared from biomass raw materials have complicated preparation methods, such as high-temperature calcination, strong acid and strong alkali for deep carbonization, or extraction with organic solvents, and purification and separation take a long time (such as dialysis), etc. , and the yield of prepared CDs is low

Method used

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  • A kind of rosin-based carbon dot material and its preparation method and application
  • A kind of rosin-based carbon dot material and its preparation method and application
  • A kind of rosin-based carbon dot material and its preparation method and application

Examples

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preparation example Construction

[0028] The invention provides a kind of preparation method of rosin-based carbon dot material, comprising the following steps:

[0029] The rosin-like resin acid is mixed with water for hydrothermal reaction to obtain the rosin-based carbon dot material.

[0030] In the present invention, unless otherwise specified, the required preparation materials are commercially available products well known to those skilled in the art.

[0031] In the present invention, the abietic resin acid is preferably a resin acid having a tricyclic phenanthrene skeleton structure, more preferably one or more of abietic acid type resin acids, pimaric acid type resin acids and isopimaric acid type resin acids. kind.

[0032] In the present invention, the structural formula of described abietic acid type resin acid is preferably:

[0033]

[0034]

[0035] In the present invention, the structural formula of described pimaric acid type resin acid is as follows:

[0036]

[0037] In the pres...

Embodiment 1

[0047] Put 0.7g of hydrogenated rosin (hydrogenated abietic acid) into a 100mL hydrothermal synthesis reactor, then pour 70mL of deionized water into the hydrothermal synthesis reactor, mix well, perform a hydrothermal reaction at 180°C for 12h, and cool naturally to After room temperature, a water-based microporous filter membrane with a pore size of 0.22 μm was used for suction filtration to separate the filtrate, and the filtrate was freeze-dried to obtain a rosin-based CDs solid, that is, a rosin-based carbon dot material.

[0048] figure 1For the infrared spectrogram of the CDs solid prepared in Example 1 and the hydrogenated rosin raw material, it can be seen from the figure analysis that the functional group structure of CDs is basically consistent with the raw material, indicating that the carbon core surface may retain the basic structural unit of the tricyclic phenanthrene resin acid of the raw material; Moreover, it is precisely because the basic functional groups o...

Embodiment 2

[0056] Put 0.1g of hydrogenated rosin (hydroabietic acid) into a 100mL hydrothermal synthesis reaction kettle, then pour 70mL of deionized water into the hydrothermal synthesis reaction kettle, mix well, perform a hydrothermal reaction at 240°C for 5h, and cool naturally to After room temperature, a water-based microporous filter membrane with a pore size of 0.22 μm was used for suction filtration to separate the filtrate, and the filtrate was freeze-dried to obtain a solid rosin-based CDs, that is, a rosin-based carbon dot material.

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Abstract

The invention belongs to the technical field of carbon dot materials, and particularly relates to a rosin-based carbon dot material, and a preparation method and an application thereof. Rosin resin acid is mixed with water, and a hydrothermal reaction is carried out to obtain the rosin-based carbon dot material. The rosin resin acid which is a natural biomass resource is used as a raw material, sothe raw material is rich and has a low price, and the prepared rosin-based carbon dot material has fluorescence emission properties when in a solid state and a liquid state, and has incomparable characteristics of CDs prepared from other biomass raw materials; and the CDs material is prepared by adopting the one-step hydrothermal synthesis process, the preparation method is simple and is easy tooperate, and the rosin-based carbon dot material prepared in the invention can be used for cell imaging and detection of metal Fe<3+> ions, and can be used for manufacturing a white light emitting diode (WLED) when in the solid state.

Description

technical field [0001] The invention relates to the technical field of carbon dot materials, in particular to a rosin-based carbon dot material and its preparation method and application. Background technique [0002] Carbon dots (CDs) refer to fluorescent carbon particles with a size smaller than 20 nm. There are many biomass raw materials for preparing carbon dots (CDs), such as corn, oats, various fruits, rice husks, catkins and walnut shells, etc. These raw materials can be prepared into carbon dots with good fluorescent properties by hydrothermal, microwave and other methods . However, most of the carbon dots prepared from biomass raw materials have complicated preparation methods, such as high-temperature calcination, strong acid and strong alkali for deep carbonization, or extraction with organic solvents, and purification and separation take a long time (such as dialysis), etc. , and the yield of prepared CDs is low. In addition, carbon dots prepared from biomass ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/65C01B32/15B82Y20/00B82Y40/00G01N21/64H01L33/50
CPCB82Y20/00B82Y40/00C01B32/15C01P2004/04C09K11/65G01N21/6428G01N2021/6432H01L33/502Y02B20/00
Inventor 韩世岩葛敏倪佳馨周军丹李淑君姜贵全庞久寅
Owner NORTHEAST FORESTRY UNIVERSITY
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