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Preparation method of nano-metal oxide and porous activated carbon composite

A porous activated carbon, nano-metal technology, applied in the directions of alkali metal oxides/hydroxides, alkali metal compounds, chemical instruments and methods, etc., can solve the problems of loss, limited amount of inorganic components, clogging of activated carbon, etc. High utilization and wide-ranging effects

Inactive Publication Date: 2018-06-01
海宁瑞创新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the metal-inorganic components introduced by this method usually block the pores of activated carbon, resulting in a decrease in the specific surface area and the utilization rate of the original pores.
Due to the limitation of activated carbon pore volume, the amount of inorganic components introduced in activated carbon is limited and cannot be controlled in a wide range
Moreover, the inorganic components introduced by the impregnation method may not be stably maintained in the pores of the activated carbon, and will be lost during use.

Method used

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  • Preparation method of nano-metal oxide and porous activated carbon composite
  • Preparation method of nano-metal oxide and porous activated carbon composite
  • Preparation method of nano-metal oxide and porous activated carbon composite

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Take 4 grams of FeSO4·7H2O, stir and dissolve in 100ml of water; add 40 grams of potato starch into the solution, and stir until completely dissolved. Subsequently, the mixed solution was placed in a 200 ml sealed reaction kettle with a polytetrafluoroethylene liner, and reacted in an oven at 200° C. for 5 hours. After taking it out, the reactor was cooled naturally, and the mixed solution was filtered, and the solid was dried in an oven at 100° C. for 12 hours.

[0035] The above-mentioned solid obtained after drying was placed in a tube furnace, and CO2 gas was passed through, and the gas flow rate was 48L / h; the tube furnace was heated to 800°C at a speed of 10°C / min, and kept for 2 hours. After the reaction furnace is naturally cooled, the composite material of nano ferric oxide grains and activated carbon is obtained.

[0036] The XRD spectrogram shows the amorphous peak package of activated carbon, and the characteristic peak of Fe3O4 crystal (see the appendix f...

Embodiment 2

[0039] Take 0.354 g of ZrOCl2·8H2O, stir and dissolve in 12.5 ml of water, add 5 g of potato starch into the solution, and stir until completely dissolved. The mixed solution was placed in 50 ml sealed reaction kettle with polytetrafluoroethylene liner, and reacted in an oven at 200° C. for 24 hours. After taking it out, the reactor was cooled naturally, and the mixed solution was filtered, and the solid was dried in an oven at 100° C. for 12 hours.

[0040]The above-mentioned solid obtained after drying was placed in a tube furnace, and CO2 gas was passed through, and the gas flow rate was 48L / h; the tube furnace was heated to 800°C at a speed of 10°C / min, and kept for 2 hours. The composite material of zirconia and activated carbon can be obtained after the reaction furnace is naturally cooled.

[0041] The XRD spectrogram shows the amorphous peak package of activated carbon, as well as the characteristic peaks of ZrO2 crystals (see the appended Figure 6 ); scanning elect...

Embodiment 3

[0043] Take 0.726 g of MgCl2, stir and dissolve in 12.5 ml of water, add 5 g of potato starch into the solution, and stir until completely dissolved. The mixed solution was placed in 50 ml sealed reaction kettle with polytetrafluoroethylene liner, and reacted in an oven at 200° C. for 24 hours. After taking it out, the reactor was cooled naturally, and the mixed solution was filtered, and the solid was dried in an oven at 100° C. for 12 hours.

[0044] The above-mentioned solid obtained after drying was placed in a tube furnace, and CO2 gas was passed through, and the gas flow rate was 48L / h; the tube furnace was heated to 800°C at a speed of 10°C / min, and kept for 2 hours. The composite material of magnesium oxide and activated carbon can be obtained after the reaction furnace is naturally cooled. The XRD spectrogram shows the amorphous peak package of activated carbon, as well as the characteristic peaks of MgO crystals (see the appended Figure 10 ); the BET specific surf...

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Abstract

The invention discloses a preparation method of a nano-metal oxide and porous activated carbon composite. The preparation method has the universality and is suitable for the composite process of different nano-metal oxides and an activated carbon material; the produced composite is stable in performance, and the nano-metal oxides can be uniformly distributed in an activated carbon structure. In the nano-metal oxide and porous activated carbon composite prepared by the preparation method provided by the invention, the metal oxides are uniformly distributed in the activated carbon component in anano-particle form, introduction of metal oxide nano-particles does not influence formation of an activated carbon pore canal, and thus the prepared composite is stable in performance.

Description

technical field [0001] The invention relates to the field of preparation of inorganic composite materials, in particular to a preparation method of nanometer metal oxide and porous activated carbon composite materials. Background technique [0002] Activated carbon is an amorphous carbon material with a high specific surface area and a developed pore structure. It has rich organic functional groups on its surface, so it has a strong adsorption capacity for many heavy metals and organic substances in gases and solutions. And activated carbon after use It can be reused by recycling. The well-developed pore structure of activated carbon can be used as a carrier to prepare catalysts for different catalytic reactions. In addition, activated carbon has high acid and alkali resistance, and it has a wide range of applications in environmental governance, food industry, pharmaceutical industry, chemical industry, and national defense industry. [0003] The raw materials used to pre...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30
CPCB01J20/041B01J20/06B01J20/20B01J20/28054B01J20/28064
Inventor 郝文明韩光吕睿彬
Owner 海宁瑞创新材料有限公司
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