Sulfotetraphenyl porphyrin nano luminescent material and preparation method thereof

A technology of sulfonic tetraphenylporphyrin and tetrasulfonic tetraphenylporphyrin, which is applied in the field of porphyrin nano-fluorescent materials and its preparation, and achieves the effects of excellent fluorescence performance, wide chemical stability, and wide spectral response

Inactive Publication Date: 2012-03-21
CHONGQING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: (1) only nanoparticles with indefinite shape can be obtained; (2) need to add a stabilizer, which increases the process; (3) increases the production cost; (4) will bring certain pollution
The main shortcoming of this method is: (1) needs to add surfactant, increased procedure; (2) increased production cost; (3) can bring certain pollution
The size of nanosheets and nanoblocks prepared by this method is relatively large, and the fluorescence intensity of monosulfonic tetraphenylporphyrin (TPPS1) nanomaterials prepared under the conditions described in this method is also low. Only about 8 times that of TPPS1 monomer (see attached Figure 1), the intensity is low

Method used

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  • Sulfotetraphenyl porphyrin nano luminescent material and preparation method thereof
  • Sulfotetraphenyl porphyrin nano luminescent material and preparation method thereof
  • Sulfotetraphenyl porphyrin nano luminescent material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] (1)TPPS 1 Configuration of ethanol solution

[0037] TPPS 1 Place it in a container, add ethanol solution, and stir evenly with a stirrer to prepare TPPS 1 TPPS with mass concentration of 0.58mmol / L 1 Ethanol solution, stored at 3°C ​​in the dark, for later use.

[0038] (2)TPPS 1 Preparation of Nano Fluorescent Material Dispersion System

[0039] After step (1) is completed, press TPPS 1 Ethanol solution: the volume ratio of three distilled water is the ratio of 1:60, the TPPS prepared and preserved in step (1) 1 The ethanol solution is injected into triple distilled water with an initial temperature of 3°C through the injector, then heated and stirred with a constant temperature stirrer and kept at a constant temperature of 80°C, and then stirred at a speed of 1440 rpm for 5 minutes to prepare microemulsion yellow TPPS 1 Nano fluorescent material dispersion system.

[0040] (3) Centrifugal separation

[0041] After the (2) step is completed, the TPPS prepare...

Embodiment 2

[0047] (1)TPPS 1 Configuration of ethanol solution

[0048] With embodiment 1, feature is: prepare TPPS 1 The mass concentration is 0.43mmol / L, and the storage temperature in the dark is 4°C.

[0049] (2)TPPS 1 Preparation of nano-fluorescent materials

[0050] With embodiment 1, feature is: TPPS 1 The volume ratio of ethanol solution: triple distilled water is 1:50, the initial temperature of triple distilled water is 4°C, the temperature of the mixture is 70°C, the stirring speed is 1600rpm, and the stirring time is 10 minutes.

[0051] (3) Centrifugal separation

[0052] With embodiment 1, feature is: the speed of centrifugation is 13000 rev / mins, and centrifugation time is 30min.

[0053] (4) dry

[0054] With embodiment 1, feature is: drying temperature is 85 ℃, and drying time is 24 hours, and the powdery material prepared is the TPPS of long 350~450nm, wide 150~300nm 1 Fluorescent nano sheets and fluorescent nano strips with a length of 500-850nm and a width of ...

Embodiment 3

[0058] (1)TPPS 1 Configuration of ethanol solution

[0059] With embodiment 1, feature is: prepare TPPS 1 The mass concentration is 0.50mmol / L, and the storage temperature in the dark is 4°C.

[0060] (2)TPPS 1 Preparation of nano-fluorescent materials

[0061] With embodiment 1, feature is: TPPS 1 The volume ratio of ethanol solution: triple distilled water is 1:70, the initial temperature of triple distilled water is 4°C, the temperature of the mixed solution is kept constant at 4°C, the stirring speed is 1550rpm, and the stirring time is 15 minutes.

[0062] (3) Centrifugal separation

[0063] With embodiment 1, feature is: the speed of centrifugation is 14000 rev / mins, and centrifugation time is 20min.

[0064] (4) dry

[0065] Same as Example 1, the features are: the drying temperature is 84° C., the drying time is 25 hours, and the prepared powdery substance is a fluorescent nanosheet with a length of 350-400 nm and a width of 150-250 nm.

[0066] Example 4

[0...

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Abstract

The invention discloses a sulfonic acid tetraphenyl porphyrin nano-fluorescent material and a preparation method thereof, which relate to a fluorescent porphyrin material and a preparation method thereof. The sectional shape of the material is of a rectangular sheet or strip or sheet and strip. The method comprises the following steps: preparing a TPRS alcohol solution first, preparing a TPPS nano-fluorescent material dispersion system, and obtaining a product through separation and drying. The material has smaller size and better photosensitivity, has good characteristics of a porphyrin monomer such as rigidity and flexibility, electronic buffer capacity, photosensitivity, high chemical stability, wide spectral response, and also has special properties after the nanometer treatment such as small-size effect, surface effect, quantum effect, interfacial effect. The method is simple, has low production cost, and is convenient for promotion and application. The material prepared by adopting the method can be widely used as markers, photosensitive materials as well as sensitive recognition elements and materials for constructing photoelectric devices, molecular devices and sensors.

Description

technical field [0001] The invention belongs to the technical field of porphyrin nanometer materials, in particular to a porphyrin nanometer fluorescent material and a preparation method thereof. Background technique [0002] Nanotechnology is another major technology that profoundly affects social and economic development after information technology and biotechnology. Its rapid development will bring about a revolutionary change in almost all industrial fields in the 21st century. Nanomaterials have physical and chemical properties that traditional materials do not have: small size effect, surface effect, quantum effect and interface effect. So that it has some special properties that ordinary materials do not have: lead to new small size effects in physical properties such as sound, light, electromagnetic, and thermodynamics; as the particle diameter becomes smaller, the specific surface area will increase significantly. Such a high specific surface makes the number of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D487/22
Inventor 侯长军向芸颉霍丹群法焕宝罗小刚时晓杰
Owner CHONGQING UNIV
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