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Preparation method of 1, 3-diphenyl-2-pyrazoline nano particle with laminar structure

A sheet-like structure and nanoparticle technology, applied in the field of materials, can solve the problems of low luminous efficiency and poor crystal form, and achieve the effects of good monodispersity, adjustable size and high yield

Inactive Publication Date: 2011-08-10
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the 1,3-diphenyl-2-pyrazoline nanomaterials reported at home and abroad mainly have a ribbon structure, the crystal form is not good, and the luminous efficiency is not high
So far, there have been no reports of 1,3-diphenyl-2-pyrazoline nanoparticles with a sheet structure

Method used

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  • Preparation method of 1, 3-diphenyl-2-pyrazoline nano particle with laminar structure
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  • Preparation method of 1, 3-diphenyl-2-pyrazoline nano particle with laminar structure

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Experimental program
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Effect test

Embodiment 1

[0019] 1) Add 5.85 mg of NaCl into 10 ml of deionized water, and heat it in a water bath to 50°C under stirring conditions to obtain a 0.01 mol / L NaCl aqueous solution, which is set aside;

[0020] 2) Dissolve 0.0444 grams of 1,3-diphenyl-2-pyrazoline in 10 milliliters of analytically pure acetone, prepare a clear solution with a concentration of 0.02 mol / liter, and draw 200 microliters with a microsampler , and inject it into the NaCl aqueous solution prepared in step 1), continue to ultrasonically react in a water bath at 50°C for 5 minutes, then let it stand for 24 hours, centrifugally filter the obtained suspension, and ultrasonically wash the obtained solid with deionized water and drying to obtain 1,3-diphenyl-2-pyrazoline nanoparticles with a sheet-like structure with a size of 200 nanometers.

Embodiment 2

[0022] 1) Add 11.7 mg of NaCl into 10 ml of deionized water, and heat it in a water bath to 50° C. under stirring conditions to obtain a 0.02 mol / L NaCl aqueous solution for later use;

[0023] 2) Dissolve 0.0444 grams of 1,3-diphenyl-2-pyrazoline in 10 milliliters of analytically pure acetone, prepare a clear solution with a concentration of 0.02 mol / liter, and draw 200 microliters with a microsampler , and inject it into the NaCl aqueous solution prepared in step 1), continue to ultrasonically react in a water bath at 50°C for 5 minutes, then let it stand for 24 hours, centrifugally filter the obtained suspension, and ultrasonically wash the obtained solid with deionized water and drying to obtain 1,3-diphenyl-2-pyrazoline nanoparticles with a sheet-like structure with a size of 500 nanometers.

Embodiment 3

[0025] 1) Add 17.55 mg of NaCl to 10 ml of deionized water, and heat it in a water bath to 50°C under stirring conditions to obtain a 0.03 mol / L NaCl aqueous solution, which is set aside;

[0026] 2) Dissolve 0.0444 grams of 1,3-diphenyl-2-pyrazoline in 10 milliliters of analytically pure acetone, prepare a clear solution with a concentration of 0.02 mol / liter, and draw 200 microliters with a microsampler , and inject it into the NaCl aqueous solution prepared in step 1), continue to ultrasonically react in a water bath at 50°C for 5 minutes, then let it stand for 24 hours, centrifugally filter the obtained suspension, and ultrasonically wash the obtained solid with deionized water and drying to obtain 1,3-diphenyl-2-pyrazoline nanoparticles with a sheet-like structure with a size of 1 μm.

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Abstract

The invention discloses a preparation method of 1, 3-diphenyl-2-pyrazoline nano particle with laminar structure, belonging to the field of material technology. The invention prepares the 1, 3-diphenyl-2-pyrazoline nano particle with laminar structure and controllable size by utilizing NaCl to induce the growth of the 1, 3-diphenyl-2-pyrazoline nano particle. The 1, 3-diphenyl-2-pyrazoline nano particle with laminar structure has high yield of fluorescence quantum, good monodispersity, controllable particle size and the like and can be used as components of OLED and other optical devices.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a method for preparing monodisperse 1,3-diphenyl-2-pyrazoline nanoparticles emitting blue light. Background technique [0002] 1,3-Diphenyl-2-pyrazoline nanoparticles have broad prospects for development in the field of OLEDs and other nano-optical devices due to their good blue light emission and high fluorescence quantum efficiency. At present, the 1,3-diphenyl-2-pyrazoline nanomaterials reported at home and abroad mainly have a ribbon structure, the crystal form is not good, and the luminous efficiency is not high. So far, there is no report of 1,3-diphenyl-2-pyrazoline nanoparticles with sheet structure. Contents of the invention [0003] The object of the present invention is to provide a preparation method of 1,3-diphenyl-2-pyrazoline nanoparticles with sheet structure. [0004] The preparation method of the 1,3-diphenyl-2-pyrazoline nanoparticles provided...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D231/22C09K11/06
Inventor 付红兵陈伟
Owner INST OF CHEM CHINESE ACAD OF SCI
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