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Method for preparing nano zinc gallate with blue fluorescence

A technology of blue fluorescence and zinc gallate, applied in the field of nanomaterials, can solve the problems of poor luminescence performance, less luminescent materials, poor dispersion, etc., and achieve the effect of simple operation steps, fast reaction speed and low cost

Inactive Publication Date: 2011-08-03
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the above-mentioned deficiencies in the prior art, and provides a method for preparing nano-zinc gallate with blue fluorescence, which solves the problem that there are few luminescent materials that emit pure blue light in the prior art, and most of these materials are high-temperature It is formed by solid phase sintering, and generally has disadvantages such as poor dispersion or poor luminescence performance. The process of the present invention is simple, and the production cost is low. The obtained zinc gallate nanomaterial can further meet industrial needs

Method used

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  • Method for preparing nano zinc gallate with blue fluorescence
  • Method for preparing nano zinc gallate with blue fluorescence
  • Method for preparing nano zinc gallate with blue fluorescence

Examples

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Effect test

Embodiment 1

[0020] ①In a 30mL reaction flask, dissolve 1 part of zinc salt and 2 parts of sodium dodecylbenzenesulfonate in 1000 parts of water, stir to form zinc complexes and ions, then add 2 parts of gallium chloride, and then add hydrogen The sodium oxide solution was adjusted to pH 10 and stirred vigorously for 2 hours.

[0021] ②Transfer the reaction solution prepared according to step ① into a 50mL polytetrafluoroethylene reactor, control the reaction temperature to 180°C, and the reaction time to 48 hours. After the reaction, the reaction kettle was naturally cooled to 60° C., the product was filtered, washed with absolute ethanol and water several times, and vacuum-dried to obtain zinc gallate nanomaterials. figure 1 is the scanning electron micrograph of the obtained zinc gallate nanomaterial. It can be seen from the figure that the zinc gallate nanomaterial has a single-crystal regular octahedral structure, which is a pure-phase cubic structure of ZnGa 2 o 4 , the UV-Vis max...

Embodiment 2

[0023] ①In a 30mL reaction flask, dissolve 50 parts of zinc salt and 200 parts of sodium dodecylbenzenesulfonate in 1000 parts of water, stir to form zinc complexes and ions, then add 100 parts of gallium chloride, and then add hydrogen The sodium oxide solution was adjusted to pH 10 and stirred vigorously for 2 hours.

[0024] ②Transfer the reaction solution prepared according to step ① into a 50mL polytetrafluoroethylene reactor, control the reaction temperature at 200°C, and the reaction time for 6 hours. After the reaction, the reaction kettle was naturally cooled to 60° C., the product was filtered, washed with absolute ethanol and water several times, and vacuum-dried to obtain zinc gallate nanomaterials. The scanning electron micrograph of the obtained zinc gallate nanomaterial is as follows figure 2 shown. It can be seen from the figure that the zinc gallate nanomaterial has a single-crystal regular octahedral structure, which is a pure-phase cubic structure of ZnGa...

Embodiment 3

[0026] ①In a 50mL reaction bottle, dissolve 10 parts of zinc salt and 50 parts of sodium lauryl sulfate in 1000 parts of water, then add concentrated ammonia water to form a clear and transparent zinc complex and ion solution, add 20 parts of gallium sulfate , and then add sodium hydroxide solution to adjust the pH value to 8, then vigorously stir for 2 hours.

[0027] ②Transfer the reaction liquid prepared according to step ① into a 50mL polytetrafluoroethylene reactor, control the reaction temperature to 160°C, and the reaction time to 96 hours. After the reaction, the reaction kettle was naturally cooled to 60° C., the product was filtered, washed with absolute ethanol and water several times, and vacuum-dried to obtain zinc gallate nanomaterials. The scanning electron micrograph of the obtained zinc gallate nanomaterial is as follows image 3 shown. It can be seen from the figure that the zinc gallate nanomaterials are assembled into small particles to form a cake-like s...

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Abstract

The invention discloses a method for preparing nano zinc gallate with blue fluorescence in the technical field of nano materials. The method comprises the following steps of: adding a surfactant into solution of zinc salt to prepare zinc complex ion solution; sequentially adding gallium salt and controlling the pH value; and reacting under heating to obtain the zinc gallate nano material. By the method, the defects that luminescent materials emitting pure blue light are relatively a few in the prior art and most of the luminescent materials have relatively poor dispersibility or light-emitting property because most of the luminescent materials are formed by high-temperature solid phase sintering, and other defects, are overcome. The method is simple and low in production cost. The obtained zinc gallate nano material can further meet industrial requirements.

Description

technical field [0001] The invention relates to a method in the technical field of nanometer materials, in particular to a method for preparing nanometer zinc gallate with blue fluorescence. Background technique [0002] Nanomaterials have received great attention because of their unique functions and properties. They play an important role in many fields such as nanoelectronics, magnetism, and optoelectronics. Therefore, the controlled synthesis of nanomaterials has received more and more attention. , especially the synthesis of semiconductor functional materials by a simple and cheap hydrothermal method. The hydrothermal method is carried out in a closed system, which can control the reaction atmosphere to form oxidation or reduction reaction conditions, and realize the formation of certain phases of substances that are difficult to obtain by other methods; the nanocrystals obtained by this method are obtained under relatively low thermal stress. Conditions of growth, so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G15/00B82Y40/00
Inventor 袁艳萍钱雪峰沈杰宰建陶徐淼
Owner SHANGHAI JIAO TONG UNIV
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