CN106915738A - A kind of preparation method of strong electropositive fluorescent carbon point - Google Patents
A kind of preparation method of strong electropositive fluorescent carbon point Download PDFInfo
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- CN106915738A CN106915738A CN201710282598.1A CN201710282598A CN106915738A CN 106915738 A CN106915738 A CN 106915738A CN 201710282598 A CN201710282598 A CN 201710282598A CN 106915738 A CN106915738 A CN 106915738A
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- 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
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Abstract
The present invention discloses a kind of preparation method of strong electropositive fluorescent carbon point, and it is comprised the following steps：Step 1, compound concentration is the mL of the cetylpyridinium chloride aqueous solution 100 of 1~50 mM, the sodium hydroxide solution for adding 2~10 mL concentration to be 2 M, is uniformly mixed so as to obtain transparent primary liquor；Step 2, obtained primary liquor is placed in ultrasonically treated 10~60 minutes in ultrasonic cleaner, and primary liquor gradually becomes glassy yellow by transparent, is stopped ultrasound and is obtained two grades of solution with hydrochloric acid solution regulation pH to neutrality；Step 3, is dialysed two grades of solution with bag filter, unreacted reagent in two grades of solution of removal, is collected and liquid and carry out being vacuum dried the fluorescent carbon point for obtaining yellow green in bag filter.Not only fluorescence property is excellent for fluorescent carbon point prepared by the present invention, and possesses special strong positive electricity property, is expected to practical application that is abundant and extending carbon point.
Description
Technical field
The present invention relates to field of nano-luminescent material, more particularly to a kind of preparation method of strong electropositive fluorescent carbon point.
Background technology
Fluorescent carbon point with its excellent optical property, good biocompatibility, hypotoxicity and it is cheap and easy to get the advantages of, quilt
It is widely used in the fields such as bio-sensing, analysis detection, energy catalysis.The fluorescent carbon point with property is prepared, is conducive to
Solve the problems, such as that some are practical, enrich the species of fluorescent carbon point, extend its new opplication in different field.
The synthesis source of fluorescent carbon point extensively, from micromolecular compounds such as citric acid, glucose, amino acid to orange juice, is set
The natural products such as leaf, silk, are used equally to the preparation of carbon point.But the performance of carbon point is closely related with its carbon source, it is determined that rationally
Raw material be the prerequisite for preparing specific function type fluorescent carbon point.Additionally, the synthetic method of fluorescent carbon point includes laser-induced thermal etching
Method, electrochemical oxidation process, hydrothermal synthesis method, microwave heating method, supercritical ultrasonics technology etc..The carbon point obtained using different preparation methods
Can be also different.
The content of the invention
It is an object of the invention to provide a kind of preparation method of strong electropositive fluorescent carbon point.
The technical solution adopted by the present invention is：
A kind of preparation method of strong electropositive fluorescent carbon point, it is comprised the following steps：
Step 1, compound concentration is the mL of the cetylpyridinium chloride aqueous solution 100 of 1~50 mM, and 2~10 mL concentration of addition are
The sodium hydroxide solution of 2 M, is uniformly mixed so as to obtain transparent primary liquor；
Step 2, obtained primary liquor is placed in ultrasonically treated 10~60 minutes in ultrasonic cleaner, and primary liquor is by transparent
Glassy yellow is gradually become, is stopped ultrasound and is obtained two grades of solution with hydrochloric acid solution regulation pH to neutrality；
Step 3, with bag filter dialyse two grades of solution, removal two grades of solution in unreacted reagent, collect bag filter in liquid simultaneously
Carry out being vacuum dried the fluorescent carbon point for obtaining yellow green.
The concentration of the cetylpyridinium chloride aqueous solution configured in the step 1 is 15 mM.
The concentration added in the step 1 is the amount 9mL of the sodium hydroxide solution of 2M.
The power of ultrasonic cleaner is 700 W in the step 2.
The ultrasonically treated time is 30 minutes in the step 2.
The molecular cut off of bag filter is 3500Da in the step 3.
The present invention uses above technical scheme, with cetylpyridinium chloride as raw material prepare it is a kind of strong electropositive glimmering
Light carbon point.Cetylpyridinium chloride is a kind of strong electropositive compound, is conducive to strong electropositive introducing, and economical honest and clean
Valency.Using ultrasonically treated method, compared with other method, equipment is simple and easy to get, and preparation time is short, relatively mild reaction bar
Part is conducive to electropositive reservation on presoma.Not only fluorescence property is excellent for fluorescent carbon point prepared by the present invention, and possesses spy
Different strong positive electricity property, is expected to practical application that is abundant and extending carbon point.
Brief description of the drawings
The present invention is described in further details below in conjunction with the drawings and specific embodiments；
Fig. 1 is a kind of schematic flow sheet of the preparation method of strong electropositive fluorescent carbon point of the present invention；
Fig. 2 is the fluorescence excitation spectrum and fluorescence emission spectrogram of compound of fluorescent carbon point of the invention；
Fig. 3 is the transmission electron microscope picture of fluorescent carbon point of the invention；
Fig. 4 is the Zeta potential distribution map of fluorescent carbon point of the invention.
Specific embodiment
As Figure 1-4, the invention discloses a kind of preparation method of strong electropositive fluorescent carbon point, it includes following step
Suddenly：
Step 1, compound concentration is the mL of the cetylpyridinium chloride aqueous solution 100 of 1~50 mM, and 2~10 mL concentration of addition are
The sodium hydroxide solution of 2 M, is uniformly mixed so as to obtain transparent primary liquor；
Step 2, obtained primary liquor is placed in ultrasonically treated 10~60 minutes in ultrasonic cleaner, and primary liquor is by transparent
Glassy yellow is gradually become, is stopped ultrasound and is obtained two grades of solution with hydrochloric acid solution regulation pH to neutrality；
Step 3, with bag filter dialyse two grades of solution, removal two grades of solution in unreacted reagent, collect bag filter in liquid simultaneously
Carry out being vacuum dried the fluorescent carbon point for obtaining yellow green.
The concentration of the cetylpyridinium chloride aqueous solution configured in the step 1 is 15 mM.
The concentration added in the step 1 is the amount 9mL of the sodium hydroxide solution of 2M.
The power of ultrasonic cleaner is 700 W in the step 2.
The ultrasonically treated time is 30 minutes in the step 2.
The molecular cut off of bag filter is 3500Da in the step 3.
In order to further illustrate the features of the present invention, the fluorescent carbon point using gained in embodiment 1 is further divided
Analysis.
Such as Fig. 2 is the fluorescence excitation spectrum and fluorescence emission spectrogram of compound of fluorescent carbon point of the invention, as can be seen from Figure 2
The maximum excitation wavelength of the fluorescent carbon point is 390 nm, and maximum emission wavelength is 525 nm, is in yellow-green fluorescence under uviol lamp.
As shown in figure 3, the transmission electron microscope picture of the fluorescent carbon point, the carbon point is uniformly distributed, the nm of average grain diameter about 3.Fig. 4 is
The Zeta potential distribution map of the fluorescent carbon point, Fig. 4 shows that synthesized carbon point has the property of strong positive electricity.
The present invention uses above technical scheme, with cetylpyridinium chloride as raw material prepare it is a kind of strong electropositive glimmering
Light carbon point.Cetylpyridinium chloride is a kind of strong electropositive compound, is conducive to strong electropositive introducing, and economical honest and clean
Valency.Using ultrasonically treated method, compared with other method, equipment is simple and easy to get, and preparation time is short, relatively mild reaction bar
Part is conducive to electropositive reservation on presoma.Not only fluorescence property is excellent for fluorescent carbon point prepared by the present invention, and possesses spy
Different strong positive electricity property, is expected to practical application that is abundant and extending carbon point.
Claims (6)
1. a kind of preparation method of strong electropositive fluorescent carbon point, it is characterised in that：It is comprised the following steps：
Step 1, compound concentration is the mL of the cetylpyridinium chloride aqueous solution 100 of 1~50 mM, and 2~10 mL concentration of addition are
The sodium hydroxide solution of 2 M, is uniformly mixed so as to obtain transparent primary liquor；
Step 2, obtained primary liquor is placed in ultrasonically treated 10~60 minutes in ultrasonic cleaner, and primary liquor is by transparent
Glassy yellow is gradually become, is stopped ultrasound and is obtained two grades of solution with hydrochloric acid solution regulation pH to neutrality；
Step 3, with bag filter dialyse two grades of solution, removal two grades of solution in unreacted reagent, collect bag filter in liquid simultaneously
Carry out being vacuum dried the fluorescent carbon point for obtaining yellow green.
2. the preparation method of a kind of strong electropositive fluorescent carbon point according to claim 1, it is characterised in that：The step 1
The concentration of the cetylpyridinium chloride aqueous solution of middle configuration is 15 mM.
3. the preparation method of a kind of strong electropositive fluorescent carbon point according to claim 1, it is characterised in that：The step 1
The concentration of middle addition is the amount 9mL of the sodium hydroxide solution of 2M.
4. the preparation method of a kind of strong electropositive fluorescent carbon point according to claim 1, it is characterised in that：The step 2
The power of middle ultrasonic cleaner is 700 W.
5. the preparation method of a kind of strong electropositive fluorescent carbon point according to claim 1, it is characterised in that：The step 2
In ultrasonically treated time be 30 minutes.
6. the preparation method of a kind of strong electropositive fluorescent carbon point according to claim 1, it is characterised in that：The step 3
The molecular cut off of middle bag filter is 3500Da.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110724527A (en) * | 2019-10-11 | 2020-01-24 | 中国农业科学院农业质量标准与检测技术研究所 | Cationic carbon dot, preparation method thereof and application thereof in nano-silver detection |
| CN111430695A (en) * | 2020-04-10 | 2020-07-17 | 华鼎国联四川电池材料有限公司 | Method for coating modified ternary material by using carbon quantum dots |
| CN113575608A (en) * | 2021-08-27 | 2021-11-02 | 广东中迅农科股份有限公司 | Insecticidal composition and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361047A (en) * | 2012-03-28 | 2013-10-23 | 中国科学院大连化学物理研究所 | Functional fluorescence carbon nanoparticles based on natural saccharide materials and preparation method and application thereof |
| CN103922314A (en) * | 2014-04-24 | 2014-07-16 | 华南师范大学 | Fluorescent carbon nanoparticles as well as preparation method and application thereof |
| CN104071769A (en) * | 2014-06-12 | 2014-10-01 | 大连理工大学 | Method for preparing fluorescent carbon point by virtue of chemical oxidation method, fluorescent carbon point and application of fluorescent carbon point |
| CN104591129A (en) * | 2015-01-12 | 2015-05-06 | 四川大学 | Method for preparing hydrophobic carbon quantum dots on large scale under ambient temperature condition |
-
2017
- 2017-04-26 CN CN201710282598.1A patent/CN106915738A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361047A (en) * | 2012-03-28 | 2013-10-23 | 中国科学院大连化学物理研究所 | Functional fluorescence carbon nanoparticles based on natural saccharide materials and preparation method and application thereof |
| CN103922314A (en) * | 2014-04-24 | 2014-07-16 | 华南师范大学 | Fluorescent carbon nanoparticles as well as preparation method and application thereof |
| CN104071769A (en) * | 2014-06-12 | 2014-10-01 | 大连理工大学 | Method for preparing fluorescent carbon point by virtue of chemical oxidation method, fluorescent carbon point and application of fluorescent carbon point |
| CN104591129A (en) * | 2015-01-12 | 2015-05-06 | 四川大学 | Method for preparing hydrophobic carbon quantum dots on large scale under ambient temperature condition |
Non-Patent Citations (1)
| Title |
|---|
| BAOZHAN ZHENG等: ""One pot selective synthesis of water and organic soluble carbon dots with green fluorescence emission"", 《RSC ADVANCES》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110724527A (en) * | 2019-10-11 | 2020-01-24 | 中国农业科学院农业质量标准与检测技术研究所 | Cationic carbon dot, preparation method thereof and application thereof in nano-silver detection |
| CN111430695A (en) * | 2020-04-10 | 2020-07-17 | 华鼎国联四川电池材料有限公司 | Method for coating modified ternary material by using carbon quantum dots |
| CN111430695B (en) * | 2020-04-10 | 2021-07-27 | 华鼎国联动力电池有限公司 | Method for coating modified ternary material by using carbon quantum dots |
| CN113575608A (en) * | 2021-08-27 | 2021-11-02 | 广东中迅农科股份有限公司 | Insecticidal composition and application thereof |
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Application publication date: 20170704 |