Environmental Chemistry

How CO2 captured and processed into raw materiail?

CO2 captured and processed

 

How CO2 captured and processed into raw material?

For several months, the initiatives of researchers to develop a material capable of efficiently capturing CO 2 , then converting it into a raw material, are multiplying. The latest comes from Japan. Thanks to a porous material structured in a helix, its inventors announce to reach a record efficiency.

In recent years, our consumption of fossil fuels has exploded, emitting towards the atmosphere ever more carbon dioxide (CO 2 ). A gas – among others – responsible for the warming of our planet observed by scientists. And one of the imagined solutions is to capture this CO 2 . Unfortunately, the low reactivity of the gas makes the operation delicate.

But researchers from Kyoto University (Japan) are now proposing a new solution. “We have designed a porous material that has a high affinity for CO 2 and allows, after capture, to effectively convert it into a raw material for the industry,” assures chemist Ken-ichi Otake.

 

A formidable helical structure

The material in question belongs to the category of porous coordination polymers (PCP), still known as the  Metal Organic Framework (MOFs). It is made from zinc metal ions and an organic component with a helical structure . And this seems to be the secret of success because this structure pivots with the approach of CO 2 to trap gas.

The researchers’ analysis shows that this particular PCP captures CO 2 selectively ten times more efficiently than other PCPs. An operation that always works even after ten reaction cycles. And with a PCP anyway recyclable.

Once the CO 2 is captured, it can be reused to form organic polymers that can be transformed into polyurethane that can be found in our clothes or appliances. It can also be recycled into cyclic carbonates, useful for the petrochemical industry and the pharmaceutical industry .

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