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Preparation method of magnesium oxide porous nano-material supported activated carbon fiber felt

A technology of activated carbon fiber felt and nano-materials, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., to achieve the effects of easy recycling, high adsorption properties, and large amount of modification

Pending Publication Date: 2020-01-07
ANHUI UNIVERSITY OF ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on the modification of activated carbon fibers by magnesium oxide nanomaterials.

Method used

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  • Preparation method of magnesium oxide porous nano-material supported activated carbon fiber felt
  • Preparation method of magnesium oxide porous nano-material supported activated carbon fiber felt
  • Preparation method of magnesium oxide porous nano-material supported activated carbon fiber felt

Examples

Experimental program
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Effect test

Embodiment 1

[0031] see Figure 5 , Figure 5 A preparation method of magnesium oxide porous nanomaterial loaded activated carbon carbon fiber felt is shown, comprising the steps:

[0032] (1) Activation of activated carbon fiber felt: first, wash the activated carbon fiber felt with clean water 3 times, then immerse it in a water-filled autoclave, keep it warm at 80°C for 48H, then take it out, and put it in a 40°C autoclave. drying in an oven to obtain an activated carbon fiber felt that has been activated.

[0033] (2) Loading of magnesium oxide precursor on activated carbon fiber felt: urea and magnesium chloride were dissolved in deionized water to form a transparent solution with a concentration of 0.01%, and then immersed in it with the activated carbon fiber felt treated in (1) for 0.5 H. Then put them together in an autoclave and react for 6H at 120°C. After the reaction, take it out, wash it repeatedly with clean water for several times, and then dry it in an oven at 40°C to ...

Embodiment 2

[0036] see Figure 5 , Figure 5 A preparation method of magnesium oxide porous nanomaterial loaded activated carbon carbon fiber felt is shown, comprising the steps:

[0037] (1) Activation of activated carbon fiber felt: first, wash the activated carbon fiber felt with clear water 3 times, then immerse it in a water-filled autoclave, keep it warm at 90°C for 40H, then take it out, and put it in a 50°C autoclave. drying in an oven to obtain an activated carbon fiber felt that has been activated.

[0038] (2) Loading of magnesium oxide precursor on activated carbon fiber felt: urea and magnesium nitrate were dissolved in deionized water to form a transparent solution with a concentration of 0.03%, and then immersed in it with the activated carbon fiber felt treated in (1), soaking 1H. Then they were put into an autoclave and reacted for 8H at 140°C. After the reaction, take it out, wash it repeatedly with clean water for several times, and then dry it in an oven at 50°C to...

Embodiment 3

[0041] see Figure 5 , Figure 5 A preparation method of magnesium oxide porous nanomaterial loaded activated carbon carbon fiber felt is shown, comprising the steps:

[0042] (1) Activation of activated carbon fiber felt: first, wash the activated carbon fiber felt with clear water 4 times, then immerse it in a water-filled autoclave, keep it warm at 100°C for 35H, then take it out, and put it in a 60°C autoclave. drying in an oven to obtain an activated carbon fiber felt that has been activated.

[0043] (2) Loading of magnesium oxide precursor on the activated carbon fiber felt: hexamethyleneimine and magnesium sulfate were dissolved in deionized water to form a transparent solution with a concentration of 0.06%, and then mixed with the activated carbon fiber treated in (1) Immerse the felt in it for 2H. Then they were put into an autoclave and reacted for 10H at 150°C. After the reaction, take it out, wash it repeatedly with clean water for several times, and then dry it...

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Abstract

The invention relates to the technical field of chemical preparation, and concretely relates to a preparation method of a magnesium oxide porous nano-material supported activated carbon fiber felt. The method comprises the following steps: activating an activated carbon fiber felt, loading a magnesium oxide precursor on the activated carbon fiber felt, and preparing the magnesium oxide porous nano-sheet supported activated carbon fiber felt. Compared with a conventional magnesium oxide material for water treatment, the nanomaterial for water treatment, provided by the invention has the high adsorption property of the magnesium oxide porous nanomaterial, and is convenient to recycle; the morphology of the magnesium oxide porous material on the activated carbon fiber felt can be accurately controlled, the modification amount is large and exceeds 40%, and the preparation method has the advantages of low preparation device investment, simple process, and easiness in operation; and the design thought and the preparation method of the water treatment material provide a new design thought and a new preparation method for the practical application of the magnesium oxide porous nanomaterial.

Description

technical field [0001] The invention relates to the technical field of chemical preparation, in particular to a method for preparing a magnesium oxide porous nanomaterial loaded activated carbon carbon fiber felt. Background technique [0002] Magnesium oxide is a commonly used adsorption material with good adsorption performance, and it has a very wide range of applications in neutralizing acid waste gas and wastewater and removing arsenic, fluorine and heavy metal ions in water. With the improvement of environmental protection requirements, the country's demand for high-efficiency magnesium oxide adsorbents is growing rapidly. Adsorption is the act of attaching and fixing the adsorbate on the surface of the adsorbent, and the adsorption capacity of the adsorbent is often closely related to its specific surface area. Due to their nanoscale size and nanoscale pores, porous nanomaterials often have a specific surface area much higher than that of conventional powder material...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/14
CPCB01J20/20B01J20/28033C02F1/281C02F2101/14
Inventor 金震廖敏和张勇丁益徐民达张欢
Owner ANHUI UNIVERSITY OF ARCHITECTURE
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