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Method for preparing indium oxide nanoparticle of porous structure

A porous structure and nanoparticle technology, which is applied in the field of preparation of indium oxide nanoparticles, can solve the problems of complicated preparation methods, high production costs, and industrial production.

Inactive Publication Date: 2016-11-30
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

my country for In 2 o 3 The study of nanomaterials, especially their structure and morphology, is in its infancy, but due to the disadvantages of complex operations and high production costs in the preparation method, it is difficult to put the research results into actual industrial production on a large scale.
In addition, due to the constraints of experimental equipment and production technology, people are currently working on In 2 o 3 The exploration of nanomaterials, especially the exploration of gas-sensing properties, is not very deep

Method used

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  • Method for preparing indium oxide nanoparticle of porous structure
  • Method for preparing indium oxide nanoparticle of porous structure
  • Method for preparing indium oxide nanoparticle of porous structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Weigh a certain amount of indium chloride and dodecylamine, dissolve them in absolute ethanol, the concentration of indium chloride is 0.025 mol / L, the concentration of dodecylamine is 0.025 mol / L, and control the The molar ratio of indium to dodecylamine is 1:1;

[0017] (2) Move the mixed solution obtained in step (1) to a hydrothermal reaction kettle lined with polytetrafluoroethylene, conduct a hydrothermal reaction at a temperature of 170°C for 8 hours, and then use the product after the hydrothermal reaction The centrifuge is used for solid-liquid separation, and the obtained solid product is washed several times with deionized water and ethanol;

[0018] (3) Place the solid product obtained in step (2) in a drying oven, dry at 60°C for 24 hours, then put it in an alumina crucible and put it in a muffle furnace, and heat-treat it at 400°C for 3 hours to obtain indium oxide with a porous structure Powder.

Embodiment 2

[0020] (1) Weigh a certain amount of indium chloride and dodecylamine, dissolve them in absolute ethanol, in which the concentration of indium chloride and dodecylamine is 0.028 mol / L, and the concentration of dodecylamine is 0.028 mol / L. The molar ratio of indium to dodecylamine is 1:1;

[0021] (2) Move the mixed solution obtained in step (1) to a hydrothermal reaction kettle lined with polytetrafluoroethylene, and conduct a hydrothermal reaction at a temperature of 180°C for 12 hours, and then use the product after the hydrothermal reaction The centrifuge is used for solid-liquid separation, and the obtained solid product is washed several times with deionized water and ethanol;

[0022] (3) Place the solid product obtained in step (2) in a drying oven, dry at 60°C for 24 hours, then put it in an alumina crucible and put it in a muffle furnace, and heat-treat it at 400°C for 3 hours to obtain indium oxide with a porous structure Powder.

Embodiment 3

[0024] (1) Weigh a certain amount of indium chloride and dodecylamine, dissolve them in absolute ethanol, the concentration of indium chloride is 0.028 mol / L, the concentration of dodecylamine is 0.056 mol / L, and control the The molar ratio of indium to dodecylamine is 1:2;

[0025] (2) Move the mixed solution obtained in step (1) to a hydrothermal reaction kettle lined with polytetrafluoroethylene, and conduct a hydrothermal reaction at a temperature of 180°C for 12 hours, and then use the product after the hydrothermal reaction The centrifuge is used for solid-liquid separation, and the obtained solid product is washed several times with deionized water and ethanol;

[0026] (3) Place the solid product obtained in step (2) in a drying oven, dry at 60°C for 24 hours, then put it in an alumina crucible and put it in a muffle furnace, and heat-treat it at 400°C for 3 hours to obtain indium oxide with a porous structure Powder.

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Abstract

The invention provides a method for preparing indium oxide nanoparticles of porous structures. The method specifically comprises the following steps: by taking indium chloride and dodecylamine as raw materials, performing a hydrothermal reaction, and performing calcination treatment, thereby obtaining the indium oxide nanoparticles of the porous structures. The method is simple in production process, free of expensive surfactant and relatively low in cost, and the prepared indium oxide can be used as a gas sensitive material, has good gas sensitivity on formaldehyde gases due to the porous structures, and thus has long-term application prospects in formaldehyde gas detection.

Description

technical field [0001] The invention relates to a method for preparing indium oxide nanoparticles with a porous structure, and belongs to the technical field of preparation technology of advanced nano functional materials. Background technique [0002] In daily life, when we travel outside, we are deeply harmed by industrial waste gas, vehicle exhaust, PM2.5 and other gases, and at home are also affected by toxic gases such as formaldehyde and stupid. Therefore, research and development of high-performance gas sensors have very important practical significance, whether it is due to the urgent need for environmental pollution gas detection, or the desire to ensure the quality of life and industrial safety. With people's increasing attention to environmental protection and strict monitoring of toxic and harmful gas emissions, various gas detection and early warning devices with different functions have emerged, and have been further industrialized and commercialized. Due to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G15/00B82Y40/00G01N33/00
CPCC01G15/00C01P2002/72C01P2002/80C01P2004/03C01P2004/04C01P2004/64G01N33/0047
Inventor 张苏宋鹏李嘉王琦杨中喜
Owner UNIV OF JINAN
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