【Frontiers in HaiChuan Chemical Technology】Scientists in Helsinki, Finland have developed a reusable compound for the efficient capture of CO2 from the air

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A reusable compound for efficient CO2 capture from the air: Scientists at the University of Helsinki in Finland have developed a new compound that can effectively capture carbon dioxide (CO2) from the air. This compound has various advantages, including reusability, easy release of the captured CO2, and non-toxicity. The relevant findings were published in the latest issue of the journal Environmental Science & Technology. https://p3-sign.toutiaoimg.com/tos-cn-i-axegupay5k/c62639cbcc5e4807b53a3dbc7b0ad54d~tplv-tt-origin-web:gif.jpeg?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1767926538&x-signature=Dm4sUO73LpfDLi2mDXD9HeZPvrc%3D This compound was developed using superenzymes and alcohols. Test results show that each gram of this compound can directly absorb 156 milligrams of CO2 from untreated ambient air. It is worth noting that this compound does not react with nitrogen, oxygen, or other gases; its performance is significantly superior to currently used CO2 capture methods. By heating the compound at 70°C for 30 minutes, the trapped CO2 can be released for reuse. The team emphasized that the easy release of CO2 is an important advantage of this compound. In contrast, some existing materials often require high temperatures of over 900°C to release CO2. Furthermore, this compound can be reused: it retains 75% of its initial capture capacity after 50 cycles ； Even after 100 cycles, the capture capacity remains at 50%. The discovery of this compound resulted from experiments attempting various basic groups in different systems; the entire process took over a year, during which the target compound was ultimately developed. The production cost of these raw materials is low, and the final product is a non-toxic liquid. The team stated that the next step will be to test the compound in experimental setups on a scale close to industrial levels. To this end, it must be converted into a solid form, for example by being compounded with materials such as silica or graphene oxide, to enhance its ability to interact with CO2.