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Preparation method of castor-oil-coated zinc oxide nano particle

A nano-zinc oxide and castor oil technology, applied in the field of nano-materials, achieves the effects of less environmental pollution, easy-to-obtain raw materials, and simple operation

Active Publication Date: 2013-10-23
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there have been many reports on the preparation of zinc oxide nanoparticles, but there are few reports on the preparation of zinc oxide nanoparticles by using castor oil, a natural vegetable oil.

Method used

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  • Preparation method of castor-oil-coated zinc oxide nano particle
  • Preparation method of castor-oil-coated zinc oxide nano particle
  • Preparation method of castor-oil-coated zinc oxide nano particle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) 0.22 g of zinc acetate was added to 3.95 g of ethanol, stirred for 20 minutes to fully dissolve it, and an ethanol solution containing zinc salt was obtained.

[0023] (2) add the castor oil of 28.65 grams in the ethanol solution that contains zinc salt that step (1) makes, stir 30 minutes, be heated to 80 ℃ of refluxed 120 minutes again, make the castor oil solution that contains zinc salt.

[0024] (3) in the castor oil solution that contains zinc salt that step (2) makes, the amount concentration of adding 2 grams of substances is the sodium hydroxide ethanolic solution of 1 mol / liter, continues to stir 2 hours at 80 ℃, is then cooled to At room temperature, centrifuged, washed with ethanol for 4 times, and then dried at 60° C. for 12 hours to prepare castor oil-coated zinc oxide nanoparticles.

Embodiment 2

[0026] (1) Add 0.068 gram of zinc chloride into 2.37 gram of methanol, stir for 10 minutes to fully dissolve it, and obtain a methanol solution containing zinc salt.

[0027] (2) add the castor oil of 19.1 grams in the methanol solution that contains zinc salt that step (1) makes, stir 60 minutes, be heated to 75 ℃ of refluxed 120 minutes again, make the castor oil solution that contains zinc salt.

[0028] (3) adding 1 gram of substance concentration in the castor oil solution containing zinc salt that step (2) makes is the sodium hydroxide ethanolic solution of 1 mol / liter, continues to stir 1 hour at 120 ℃, is then cooled to At room temperature, centrifuged, washed with ethanol for 3 times, and then dried at 60° C. for 12 hours to prepare castor oil-coated zinc oxide nanoparticles.

Embodiment 3

[0030] (1) 0.225 grams of zinc bromide was added to 8.92 grams of ethylene glycol, and stirred for 30 minutes to fully dissolve it to obtain a zinc salt-containing ethylene glycol solution.

[0031] (2) add the castor oil of 28.65 grams in the ethylene glycol solution that contains zinc salt that step (1) makes, stir 90 minutes, be heated to 90 ℃ of refluxes 30 minutes again, make the castor oil solution that contains zinc salt.

[0032] (3) in the castor oil solution that contains zinc salt that step (2) makes, adding 2 grams of substance concentration is the potassium hydroxide ethanolic solution of 1 mol / liter, continues to stir 0.5 hour at 150 ℃, is then cooled to At room temperature, centrifuged, washed with ethanol for 4 times, and then dried at 60° C. for 12 hours to prepare castor oil-coated zinc oxide nanoparticles.

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Abstract

The invention discloses a preparation method of castor-oil-coated zinc oxide nano particle. The preparation method comprises following steps: adding zinc salt in the alcohol, stirring for 10 to 120 minutes to fully dissolve the zinc salt, obtaining a alcohol solution containing zinc salt; adding castor oil, stirring for 30 to 120 minutes, heating to a temperature of 75 to 90 DEG C and then refluxing for 30 to 120 minutes, obtaining a castor oil solution containing zinc salt; adding alkaline solution, stirring for 0.1 to 5 hours at the temperature of 75 to 180 DEG C, cooling to the room temperature, subjecting to a centrifugation treatment and washing by ethanol, drying for 12 hours at the temperature of 60 DEG C, and finally obtaining castor-oil-coated zinc oxide nano particles. The preparation method has the advantages of available raw materials, mild reactions, simple operations, easy separation, high safety in synthesis and low environmental pollution. Zinc oxide nano particles, which are prepared according to the preparation method, have good optical performance and good application prospects on fluorescence materials, semi-conductive materials, ultraviolet shielding materials and catalyst materials.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, in particular to a preparation method of castor oil-coated zinc oxide nanoparticles. Background technique [0002] ZnO nanoparticles are an important optoelectronic semiconductor material with many excellent physical and chemical properties, such as high chemical stability, photocatalytic performance, piezoelectricity, fluorescence, non-toxicity and non-migration, absorption and The ability to scatter ultraviolet light, etc., so zinc oxide nanoparticles have important application value in the fields of gas sensors, piezoelectric devices, semiconductor devices and ultraviolet shading materials. At present, there have been many reports on the preparation of zinc oxide nanoparticles, but there are few reports on the preparation of zinc oxide nanoparticles using castor oil, a natural vegetable oil. Since castor oil has the characteristics of wide sources, cheap price, and good biocompatibility...

Claims

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Application Information

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IPC IPC(8): C01G9/02
Inventor 周立何本钊黄佳昌
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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