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Method for preparing nano-magnesia with cotton cloth form

A nano-magnesium oxide, cotton cloth technology, applied in magnesium oxide, nanotechnology, nanotechnology and other directions, can solve the problems of complex process and low crystallinity, and achieve the effect of simple process, high specific surface area, and easy mass production

Inactive Publication Date: 2009-10-14
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the crystallinity of the products obtained by these methods is low, and the process is relatively complicated, which needs further improvement.

Method used

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  • Method for preparing nano-magnesia with cotton cloth form
  • Method for preparing nano-magnesia with cotton cloth form
  • Method for preparing nano-magnesia with cotton cloth form

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The method for preparing the nano magnesium oxide with cotton cloth form of the present invention, comprises the following steps:

[0024] (1) Mg(CH) with purity ≥99.0% 3 COO) 2 4H 2 O is made into a solution with a concentration of 0.8mol / L;

[0025] (2) After fully washing and drying the cotton cloth with distilled water, put it into the above prepared solution, seal and soak for 24 hours, take out the soaked cotton cloth, put it into a drying box, heat it to 80°C, and dry it at a constant temperature for 2 hours. Then carry out temperature-programmed roasting in flowing air: heat up to 800°C at a heating rate of 5°C / min, and hold the temperature for 1 hour to obtain biomorphic nano-magnesium oxide with a particle size of 15-40nm and a purity of 98.5-99.9%.

[0026] figure 1 (a) The curve shows that sintering at 300 °C, the sample has not undergone decomposition reaction, only the diffraction peaks corresponding to the (110), (200) and (004) crystal planes of cell...

Embodiment 2

[0034] The method for preparing the nano magnesium oxide with cotton cloth form of the present invention, comprises the following steps:

[0035] (1) Mg(CH) with purity ≥99.0% 3 COO) 2 4H 2 O is made into a solution with a concentration of 0.5mol / L;

[0036] (2) After fully washing and drying the cotton cloth with distilled water, put it into the above prepared solution, seal and soak for 24 hours, take out the soaked cotton cloth, put it into a drying box, heat it to 80°C, and dry it at a constant temperature for 2 hours. Then perform temperature-programmed roasting in flowing air: heat up to 500°C at a heating rate of 5°C / min, and keep the temperature for 1 hour to obtain biomorphic nano-magnesium oxide with a particle size of 10-25nm and a purity of 96.3-98.1.

Embodiment 3

[0038] The method for preparing the nano magnesium oxide with cotton cloth form of the present invention, comprises the following steps:

[0039] (1) Mg(CH) with purity ≥99.0% 3 COO) 2 4H 2 O is made into a solution with a concentration of 0.3mol / L;

[0040] (2) After fully washing and drying the cotton cloth with distilled water, put it into the above prepared solution, seal and soak for 12 hours, take out the soaked cotton cloth, put it into a drying box, heat it to 80°C, and dry it at a constant temperature for 2 hours. Then carry out temperature-programmed roasting in flowing air: heat up to 300°C at a heating rate of 5°C / min, and keep the temperature for 1 hour to obtain biomorphic nano-magnesium oxide with a particle size of 5-20nm and a purity of 87.6-88.2%.

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Abstract

The invention relates to a method for preparing nano-magnesia with cotton cloth form, mainly comprising the following steps: (1) preparing Mg(CH3COO)2.4H2O into solution with the concentration of 0.3-0.8 mol / L; (2) fully washing cotton cloth with distilled water, drying, placing the cotton cloth into the solution to dip in a sealed condition for 12-24h; (3) taking the cotton cloth treated in the step (2) out and placing the treated cotton cloth into a drying baker, raising the temperature to 80 DEG C to dry for 2h with constant temperature, and baking the cotton cloth with programmed heating in flowing air to obtain nano-magnesia powder. The invention has simple process, gentle condition, easily obtained raw material and low cost, and is easy for large-scale production. The obtained nana-material has favorable appearance characteristic and wide application, and has great potential application foreground.

Description

technical field [0001] The invention relates to a method for preparing inorganic nanometer materials, in particular to a method for preparing nano-magnesia in the form of cotton cloth. Background technique [0002] Magnesium oxide nanomaterial is a new type of high-function fine inorganic product facing the 21st century. It is also a new type of high-function fine inorganic material. The miniaturization and the sharp increase of the specific surface area make MgO nanoparticles have more important application value in many fields. In recent years, studies on the surface structure and catalytic performance of MgO have attracted extensive attention. A lot of research work pointed out that because it has high surface reactivity, especially strong surface alkalinity, by increasing the specific surface area of ​​MgO, such as preparing nano-MgO, it can show excellent catalytic and adsorption properties. For example, it can be used as filling material for refractory materials, cer...

Claims

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Application Information

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IPC IPC(8): C01F5/06B82B3/00
Inventor 李嘉王俊崔玉李洪峰孙富升张宗见
Owner UNIV OF JINAN
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