Exotic Powder Pulls Carbon Dioxide from the Air at a Record Rate

Scientists at U.C. Berkeley have developed COF-999, a special powder that captures carbon dioxide from the air very efficiently. This material absorbs CO2 at record speed and releases it when heated to just 60°C, much lower than current methods. It remains effective after 100 cycles, making it highly reusable.

COF-999 is made from a strong crystalline structure called a covalent organic framework. It has tiny open spaces that hold amines, which grab CO2 from passing air. Researchers tested it by pumping air through a tube filled with the powder and found it removed CO2 completely.

This powder could improve direct air capture (DAC) technology, which removes CO2 from the atmosphere. Current DAC systems use a lot of energy and can cost up to $1,000 per ton of CO2 captured. COF-999’s lower energy needs could make carbon removal more affordable.

COF-999 might also work for capturing CO2 from power plant emissions or even ship exhaust. It is lightweight—200 grams absorbs as much CO2 in a year as a large tree. While more testing is needed, scientists believe this new material could be a game-changer in reducing greenhouse gases and fighting climate change.