Composite catalytic material capable of synchronously capturing and recycling carbon dioxide and preparation method thereof

A technology for simultaneous capture and carbon dioxide, which is used in the preparation of carbon dioxide reduction methods, chemical instruments and methods, catalysts for physical/chemical processes, etc.

Inactive Publication Date: 2011-10-12
李溪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, no information on CO 2 Related patent reports on si

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh 1.0 gram of SBA-15 of two-dimensional hexagonal p6m and impregnate it into 9.5ml of Ni(NO 3 ) 2 ethanol aqueous solution, and stirred at 35-85°C for 10 hours until the solvent was completely evaporated and dried. The above Ni / SBA-15 was impregnated into a solution containing 1.25g of sucrose, 0.14g of sulfuric acid and 5.0g of water, dried at 100°C for 6 hours after thorough stirring, then heat-treated at 160°C for 6 hours, cooled and then dipped again But the amount of sucrose and sulfuric acid is 50-60% of the original. Then the composite was carbonized and catalyzed graphitized at 950°C for 6 hours under a nitrogen atmosphere, and the silicon oxide was etched and removed with 2 mol / L NaOH to obtain a partially graphitized and Ni-containing ordered mesoporous carbon CMK-3.

[0020] Weigh 1 gram of the above-mentioned partially graphitized and Ni-containing ordered mesoporous carbon CMK-3, impregnate it into 15 ml of anhydrous ethanol solution containing 5.4 mm...

Embodiment 2

[0023] Weigh 1.0 gram of SBA-15 of two-dimensional hexagonal p6m and impregnate it into 9.5ml of Ni(NO 3 ) 2 ethanol aqueous solution, and stirred at 35-85°C for 10 hours until the solvent was completely evaporated and dried. The above Ni / SBA-15 was impregnated into a solution containing 1.25g of sucrose, 0.14g of sulfuric acid and 5.0g of water, dried at 100°C for 6 hours after thorough stirring, then heat-treated at 160°C for 6 hours, cooled and then dipped again But the amount of sucrose and sulfuric acid is 50-60% of the original. Then the composite was carbonized and catalyzed graphitized at 950°C for 6 hours under a nitrogen atmosphere, and the silicon oxide was etched and removed with 2 mol / L NaOH to obtain a partially graphitized and Ni-containing ordered mesoporous carbon CMK-3.

[0024] Weigh 1 gram of the above-mentioned partially graphitized and Ni-containing ordered mesoporous carbon CMK-3, dip into 15 ml of anhydrous ethanol solution containing 8.3 mmol tetrabu...

Embodiment 3

[0027] Weigh 1.0 gram of SBA-15 of two-dimensional hexagonal p6m and impregnate it into 9.5ml of Fe(NO 3 ) 3 ethanol aqueous solution, and stirred at 35-85°C for 10 hours until the solvent was completely evaporated and dried. Immerse the above-mentioned Fe / SBA-15 into a solution containing 1.25g of sucrose, 0.14g of sulfuric acid and 5.0g of water, dry at 100°C for 6 hours after thorough stirring, then heat-treat at 160°C for 6 hours, then repeat the dipping once after cooling But the amount of sucrose and sulfuric acid is 50-60% of the original. Then the composite was carbonized and catalyzed graphitized at 950°C for 6 hours under a nitrogen atmosphere, and the silicon oxide was etched and removed with 2mol / L NaOH to obtain a partially graphitized and Fe-containing ordered mesoporous carbon CMK-3.

[0028] Weigh 1 gram of the above-mentioned partially graphitized and Fe-containing ordered mesoporous carbon CMK-3, dip into 15 ml of anhydrous ethanol solution containing 5.4 m...

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Abstract

The invention discloses a composite catalytic material capable of synchronously capturing and recycling carbon dioxide and a preparation method thereof. In the preparation method, transition metal (Ni or Fe) catalytically graphitized or partially graphitized ordered mesoporous carbon is taken as a carrier, a Cu-doped nano semiconductor photocatalyst (TiO2, ZnO and the like) is taken as an active ingredient which is introduced by an immersion method, and the composite catalytic material can be prepared by the steps of drying, heat treatment and the like. The composite material has high CO2 adsorbing and capturing capacity under the environmental condition, and can catalyze (including photocatalysis) the CO2 to react with water to generate organic fuels with high added value, such as hydrocarbon, alcohol and the like.

Description

technical field [0001] The invention relates to a composite catalytic material for synchronous capture and resource utilization of carbon dioxide and a preparation method thereof, and relates to the fields of catalysis and environmental protection. It is characterized in that the ordered mesoporous carbon that uses transition metal (Ni or Fe) to catalyze graphitization or partial graphitization is a carrier, and Cu-doped nano-semiconductor photocatalyst (TiO 2 , ZnO, etc.) as active components. The composite catalytic material of the present invention is characterized in that it has high CO 2 Adsorption and capture ability, and can catalyze (including photocatalysis) CO 2 React with water to generate organic fuels with high added value such as hydrocarbons and alcohols. Background technique [0002] With the rapid development of industry, the content of carbon dioxide in the atmosphere is gradually increasing, and the impact on the natural environment and the earth's ecol...

Claims

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Application Information

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IPC IPC(8): B01J23/755B01J23/745B01J23/80B01J32/00C07C31/04C07C29/15
CPCY02P20/52
Inventor 李溪王燕刚朱培怡康诗飞
Owner 李溪
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