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Method for synergistically converting carbon dioxide through plasma and photocatalyst

A plasma and photocatalyst technology, which is applied in the field of co-conversion of carbon dioxide by ions and photocatalysts, can solve the problems of lack of photocatalysts and low efficiency, and achieve the effects of strong catalytic activity, simple process, and promotion of conversion and utilization.

Pending Publication Date: 2022-01-28
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, at present, the overall efficiency of photocatalytic conversion and utilization of carbon dioxide is still low, mainly due to the lack of photocatalysts that can be used on a large scale.

Method used

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  • Method for synergistically converting carbon dioxide through plasma and photocatalyst
  • Method for synergistically converting carbon dioxide through plasma and photocatalyst
  • Method for synergistically converting carbon dioxide through plasma and photocatalyst

Examples

Experimental program
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Embodiment 1

[0025] 0.01g photocatalyst Cs 2 AgBr 6 @Al 2 o 3 Put it into the reaction chamber of a dielectric barrier discharge plasma catalytic device with a power supply of 60W, and feed CO at a gas flow rate of 50mL / min. 2 , and conduct plasma discharge reaction for 10min, CO 2 Reduction to CO (the flow chart is as follows figure 1 shown), where Cs 2 AgBr 6 and Al 2 o 3 The mass ratio is 2:5.

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Abstract

The invention relates to a method for synergistically converting carbon dioxide through plasma and a photocatalyst, and belongs to the field of comprehensive utilization of carbon dioxide. The method mainly comprises the following steps: adding 0.01 g of a photocatalyst into a plasma catalysis device with a plasma power supply power of 60W, introducing CO2 at a flow rate of 50 mL / min, and carrying out plasma discharge reaction for 10 minutes to reduce CO2 into CO. The method has the advantages of being simple in process, easy and convenient to operate, low in cost and beneficial to industrial production.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of carbon dioxide, and in particular relates to a method for synergistic conversion of carbon dioxide by plasma and photocatalyst. Background technique [0002] With the progress of human life, a large number of non-renewable energy sources are used, mainly coal, oil, etc., and in the process of use, a large amount of greenhouse gas is produced. Among them, carbon dioxide is the main greenhouse gas, and the content of carbon dioxide in the atmosphere has increased significantly in recent years (it reached 418ppm in April 2021, the highest value in nearly 3 million years). Therefore, how to effectively control the concentration of carbon dioxide gas in the atmosphere has become a common problem faced by the whole world. [0003] Carbon dioxide is a very stable molecule with high activation energy, and the enthalpy of the reaction is 283kJ / mol. Therefore, how to efficiently convert and util...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/32B01D53/88B01D53/62
CPCB01D53/32B01D53/885B01D53/62B01D2255/402B01D2255/802B01D2255/9202B01D2256/20B01D2256/245B01D2257/504B01D2259/818Y02A50/20
Inventor 黄强梁志宇戚飞张楠杨佳羽田长青刘佳欣付成帆
Owner CHONGQING UNIV OF POSTS & TELECOMM
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