Communications of the ACM
You Can Make Carbon Dioxide Filters with a 3D Printer
Creating carbon dioxide capture filters through additive manufacturing (3D printing).
Credit: Sen Zhang, Jialong Shen/NC State.
North Carolina State University (NC State) researchers have three-dimensionally (3D)-printed carbon dioxide capture filters.
The researchers blended two organic compounds and the enzyme carbonic anhydrase into an "ink" solution, then printed filaments of hydrogel into a two-dimensional grid using ultraviolet light to solidify the solution.
NC State's Jialong Shen explained, "The inspiration behind our design was our own cells, which have enzymes packed into compartmentalized spaces, filled with a fluid. That kind of environment is good for helping enzymes do their job."
Experimentation showed a filter less than an inch (2 centimeters) in diameter captured 24% of the carbon dioxide in a gas mixture, and retained 52% of its initial carbon capture performance after more than 1,000 hours.
From NC State University News
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