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Method for preparing mesoporous indium oxide

An indium oxide and mesoporous technology, applied in the field of mesoporous materials, can solve the problems of uneven pore size and difficult control of pore size, and achieve the effects of uniform pore size, pore size control, and increased specific surface area

Inactive Publication Date: 2017-11-24
田秋珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a preparation method of mesoporous indium oxide for the defects that the pore size is difficult to control and the pore size is not uniform in the traditional indium oxide preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] First, weigh 100g of quartz sand and add it to a pulverizer to crush it, pass through an 80-mesh sieve to obtain quartz sand powder, pour the quartz sand powder into a beaker containing 400mL of 15% hydrochloric acid solution, stir for 40 minutes, and filter , to obtain silicon dioxide, add silicon dioxide to a beaker containing 200mL mass fraction of 20% sodium hydroxide solution, stir and react for 1h to obtain a sodium silicate solution, weigh 40g rapeseed pollen and add it to a beaker containing 80mL mass fraction In a beaker containing 75% ethanol solution, add sodium silicate solution and 50mL hydrochloric acid with a mass fraction of 20%, stir and react for 60min, filter to obtain a filter cake, put the filter cake in a muffle furnace, and let air , the feed rate was 30mL / min, the temperature was raised to 500°C, the temperature rise rate was controlled to be 15°C / min, and the temperature was kept and calcined for 2 hours to obtain the calcined product, which was ...

example 2

[0022] First, weigh 150g of quartz sand and add it to a pulverizer to crush it, pass through a 90-mesh sieve to obtain quartz sand powder, pour the quartz sand powder into a beaker containing 450mL of 15% hydrochloric acid solution, stir for 45 minutes, and filter , to obtain silica, add silica to a beaker containing 250mL mass fraction of 20% sodium hydroxide solution, stir and react for 2h to obtain sodium silicate solution, weigh 45g rapeseed pollen and add to a beaker containing 90mL mass fraction In a beaker containing 75% ethanol solution, add sodium silicate solution and 55mL hydrochloric acid with a mass fraction of 20%, stir and react for 75min, then filter to obtain a filter cake, place the filter cake in a muffle furnace, and pass air into it , the feed rate was 35mL / min, the temperature was raised to 550°C, the temperature rise rate was controlled to be 18°C / min, and the heat preservation and calcination was carried out for 3h to obtain the calcined product, which w...

example 3

[0026]First, weigh 200g of quartz sand and add it to a pulverizer for crushing, pass through a 100-mesh sieve to obtain quartz sand powder, pour the quartz sand powder into a beaker containing 500mL of 15% hydrochloric acid solution, stir for 50 minutes, and filter , to obtain silicon dioxide, add silicon dioxide to a beaker containing 300mL mass fraction of 20% sodium hydroxide solution, stir and react for 2h to obtain a sodium silicate solution, weigh 50g rapeseed pollen and add it to a beaker containing 100mL mass fraction In a beaker containing 75% ethanol solution, add sodium silicate solution and 60mL hydrochloric acid with a mass fraction of 20%, stir and react for 90min, then filter to obtain a filter cake, place the filter cake in a muffle furnace, and let air , the feed rate was 40mL / min, the temperature was raised to 600°C, the temperature rise rate was controlled to be 20°C / min, and the heat preservation and calcination was carried out for 3h to obtain the calcined ...

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PUM

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Abstract

The invention relates to a method for preparing mesoporous indium oxide and belongs to the field of mesoporous materials. The method disclosed by the invention comprises the following steps: firstly, preparing silica by taking quartz sand as a raw material, and reacting with alkali to obtain a sodium silicate solution; taking pollen as a template, and dipping the pollen in the sodium silicate solution; calcining the pollen with the sodium silicate solution therein so as to obtain mesoporous silica; dipping the mesoporous silica serving as a template in an indium nitrate solution, calcining, dissolving out the silica with alkali so as to obtain mesoporous indium oxide; finally, performing activated modification on the mesoporous indium oxide by water vapor and carbon dioxide, so as to enlarge the specific surface area. The mesoporous indium oxide prepared with the method disclosed by the invention is uniform in particle size, and the particle size is easily controlled in the preparation process.

Description

technical field [0001] The invention relates to a preparation method of mesoporous indium oxide, belonging to the field of mesoporous materials. Background technique [0002] The synthesized M41S series silicon-based mesoporous materials have expanded the pore size range of ordered and regular porous materials from micropores to mesoporous materials; the synthesized SBA series silicon-based mesoporous materials have further improved the pore size range; its height The unique physical and chemical properties such as ordered pore structure, huge specific surface area and pore volume, and adjustable pore size make this material have great applications in optoelectronic devices, separation and purification, biological materials, catalysis, and new composite materials. It has extremely important application value in chemical engineering, information engineering, biotechnology, environmental energy and many other fields. [0003] The research scope of mesoporous materials has gra...

Claims

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Application Information

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IPC IPC(8): C01G15/00B82Y40/00
CPCC01G15/00B82Y40/00C01P2004/64C01P2006/12C01P2006/17
Inventor 吴兴旺王维
Owner 田秋珍