CN110482527A - A kind of fast preparation method for converting double fluorescent carbon points up and down - Google Patents
A kind of fast preparation method for converting double fluorescent carbon points up and down Download PDFInfo
- Publication number
- CN110482527A CN110482527A CN201910806405.7A CN201910806405A CN110482527A CN 110482527 A CN110482527 A CN 110482527A CN 201910806405 A CN201910806405 A CN 201910806405A CN 110482527 A CN110482527 A CN 110482527A
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- CN
- China
- Prior art keywords
- reaction
- fluorescent carbon
- ascorbic acid
- quantum dot
- nano particle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/65—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing carbon
Abstract
The invention discloses the fast preparation methods that one kind converts double fluorescent carbon points up and down, using ascorbic acid as carbon source, the mixed solution of ethylene glycol and water is solvent, fluorescent carbon quantum dot nano particle is prepared using solvent-thermal method reaction, the following steps are included: (1) accurately weighs 1.2g ascorbic acid, it is placed in small beaker；(2) 25ml secondary distilled water is added into small beaker and 15ml ethylene glycol, ultrasound makes it completely dissolved；(3) solution is transferred in reaction kettle, 70min is reacted in 160 DEG C of heating；(4) after reaction, stop heating immediately, reaction kettle is taken out and be put into ventilation opening natural cooling to get ascorbic acid fluorescent carbon point is arrived.Carbon quantum dot nano particle, which is made, in the present invention has conversion double fluorescent property up and down, and the reaction time is short, and condition is simple, and easily controllable, raw material is cheap and easy to get.Prepared carbon quantum dot nano particle shows excellent photoluminescent property under 373nm and 800nm excitation.
Description
Technical field
The present invention relates to chemistry and materials science field, in particular to a kind of quick preparations for converting double fluorescent carbon points up and down
Method.
Background technique
Fluorescent carbon point have it is good it is water-soluble, be easy to surface-functionalized, good biocompatibility and excellent photic
The characteristics such as luminous have in fields such as biological detection, fluorescent marker, pharmaceutical carrier, fluorescent optical sensor, photocatalysis, solar energy conversions
There is important application value.Currently, the preparation method of carbon dots is more, and such as: electrochemical etching process, laser-etching process, electric arc are put
Electrical method, microwave method, pyrolysismethod etc., but the equipment used is costly, and complicated for operation, the period is long, the carbon dots stability of photoluminescence of synthesis
Difference is greatly limited the preparation of carbon dots and application.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the defects of above-mentioned technology, provide one kind and convert double fluorescent carbon points up and down
Fast preparation method.
In order to solve the above technical problems, technical solution provided by the invention is to convert the quick of pair fluorescent carbon points above and below a kind of
Preparation method: it is characterized by: using ascorbic acid as carbon source, the mixed solution of ethylene glycol and water is solvent, using solvent-thermal method
Reaction prepares fluorescent carbon quantum dot nano particle；
The following steps are included:
(1) 1.2g ascorbic acid is accurately weighed, is placed in small beaker；
(2) 25ml secondary distilled water is added into small beaker and 15ml ethylene glycol, ultrasound makes it completely dissolved；
(3) solution is transferred in reaction kettle, 70min is reacted in 160 DEG C of heating；
(4) after reaction, stop heating immediately, reaction kettle is taken out and be put into ventilation opening natural cooling and is anti-to get arriving
Bad hematic acid fluorescent carbon point.
The advantages of the present invention over the prior art are that: carbon quantum dot nano particle, which is made, in the present invention has conversion up and down
Double fluorescent property, and the reaction time is short, and condition is simple, and easily controllable, raw material is cheap and easy to get.Prepared carbon quantum dot is received
Rice grain shows excellent photoluminescent property under 373nm and 800nm excitation.
Detailed description of the invention
Fig. 1 is the excitation (a) of prepared double fluorescent carbon points, transmitting (b) spectrum.
Fig. 2 show the up-conversion fluorescence spectrum of carbon dots.
Specific embodiment
The fast preparation method for converting double fluorescent carbon points up and down to one kind of the invention with reference to the accompanying drawing is done further detailed
It describes in detail bright.
In conjunction with attached drawing 1-2, a kind of fast preparation method for converting double fluorescent carbon points up and down, using ascorbic acid as carbon source, second
The mixed solution of two alcohol and waters is solvent, prepares fluorescent carbon quantum dot nano particle using solvent-thermal method reaction；
The following steps are included:
(1) 1.2g ascorbic acid is accurately weighed, is placed in small beaker；
(2) 25ml secondary distilled water is added into small beaker and 15ml ethylene glycol, ultrasound makes it completely dissolved；
(3) solution is transferred in reaction kettle, 70min is reacted in 160 DEG C of heating；
(4) after reaction, stop heating immediately, reaction kettle is taken out and be put into ventilation opening natural cooling and is anti-to get arriving
Bad hematic acid fluorescent carbon point.
Carbon quantum dot nano particle, which is made, in the present invention has conversion double fluorescent property up and down, and the reaction time is short, item
Part is simple, easily controllable, and raw material is cheap and easy to get.Prepared carbon quantum dot nano particle 373nm and 800nm excitation under be in
Reveal excellent photoluminescent property.
The present invention and its embodiments have been described above, this description is no restricted, shown in the drawings
Only one of embodiments of the present invention, actual structure is not limited to this.All in all if the ordinary skill of this field
Personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution phase
As frame mode and embodiment, be within the scope of protection of the invention.
Claims (1)
1. a kind of fast preparation method for converting double fluorescent carbon points up and down, it is characterised in that: using ascorbic acid as carbon source, ethylene glycol
Mixed solution with water is solvent, prepares fluorescent carbon quantum dot nano particle using solvent-thermal method reaction；
The following steps are included:
(1) 1.2g ascorbic acid is accurately weighed, is placed in small beaker；
(2) 25ml secondary distilled water is added into small beaker and 15ml ethylene glycol, ultrasound makes it completely dissolved；
(3) solution is transferred in reaction kettle, 70min is reacted in 160 DEG C of heating；
(4) after reaction, stop heating immediately, reaction kettle is taken out and be put into ventilation opening natural cooling to get Vitamin C is arrived
Sour fluorescent carbon point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910806405.7A CN110482527A (en) | 2019-08-29 | 2019-08-29 | A kind of fast preparation method for converting double fluorescent carbon points up and down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910806405.7A CN110482527A (en) | 2019-08-29 | 2019-08-29 | A kind of fast preparation method for converting double fluorescent carbon points up and down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110482527A true CN110482527A (en) | 2019-11-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910806405.7A Pending CN110482527A (en) | 2019-08-29 | 2019-08-29 | A kind of fast preparation method for converting double fluorescent carbon points up and down |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050164136A1 (en) * | 2004-01-26 | 2005-07-28 | Eastman Kodak Company | Ascorbic acid compounds as reducing agents for thermally developable compositions and imaging materials |
| US20120178099A1 (en) * | 2011-01-10 | 2012-07-12 | Indian Association For The Cultivation Of Science | Highly fluorescent carbon nanoparticles and methods of preparing the same |
| CN103265952A (en) * | 2013-05-22 | 2013-08-28 | 湖南师范大学 | Environmental-friendly synthesis method of fluorescent carbon dot with up-down conversion function |
| CN103480353A (en) * | 2013-10-01 | 2014-01-01 | 大连理工大学 | Method for synthesis of carbon quantum dot solution by hydrothermal process to prepare composite nano-photocatalyst |
| CN104388083A (en) * | 2014-11-18 | 2015-03-04 | 沈阳大学 | Method for synthesizing brilliant-yellow fluorescent carbon dots |
| CN108152263A (en) * | 2018-03-14 | 2018-06-12 | 江南大学 | A kind of method that ferro element is quickly detected based on carbon quantum dot fluorescence method |
| CN108455564A (en) * | 2018-02-05 | 2018-08-28 | 中南民族大学 | A method of preparing yellow or green carbon dots |
-
2019
- 2019-08-29 CN CN201910806405.7A patent/CN110482527A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050164136A1 (en) * | 2004-01-26 | 2005-07-28 | Eastman Kodak Company | Ascorbic acid compounds as reducing agents for thermally developable compositions and imaging materials |
| US20120178099A1 (en) * | 2011-01-10 | 2012-07-12 | Indian Association For The Cultivation Of Science | Highly fluorescent carbon nanoparticles and methods of preparing the same |
| CN103265952A (en) * | 2013-05-22 | 2013-08-28 | 湖南师范大学 | Environmental-friendly synthesis method of fluorescent carbon dot with up-down conversion function |
| CN103480353A (en) * | 2013-10-01 | 2014-01-01 | 大连理工大学 | Method for synthesis of carbon quantum dot solution by hydrothermal process to prepare composite nano-photocatalyst |
| CN104388083A (en) * | 2014-11-18 | 2015-03-04 | 沈阳大学 | Method for synthesizing brilliant-yellow fluorescent carbon dots |
| CN108455564A (en) * | 2018-02-05 | 2018-08-28 | 中南民族大学 | A method of preparing yellow or green carbon dots |
| CN108152263A (en) * | 2018-03-14 | 2018-06-12 | 江南大学 | A kind of method that ferro element is quickly detected based on carbon quantum dot fluorescence method |
Non-Patent Citations (1)
| Title |
|---|
| 徐源等: "微波辅助法一步合成荧光碳点用于水中三价铁离子的检测", 《高等学校化学学报》 * |
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Application publication date: 20191122 |
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