Background Anthropogenic CO2 emissions are one of the major contributing factors to climate change. Direct air capture (DAC) technologies extract CO2 directly from the atmosphere, and are one potential solution to combatting CO2 emissions. Poly(vinyl guanidine) (PVG) is a polymer that can be synthesized through free radical polymerization of vinyl...

The need for technologies to remove carbon dioxide (CO2) from ambient air has been well established. In addition to conservation, reduced-carbon processes, and on-site capture efforts, a significant amount of CO2 will need to be removed from the atmosphere to avoid a looming climate change crisis. Nevertheless, the technologies are still new and the...

­Background Carbon dioxide (CO2) emissions continue to be the major contributor of climate change. Solving this issue is a major hurdle currently facing the world. Various ionic liquids have shown promising affinity towards the selective capture of CO2. With the viscosity of the ionic liquids, its sorptive capacity for CO2 is limited by diffusion...

Microalgae are very useful biological systems for capturing carbon dioxide (CO2 ) and generating biomass and many useful products. Increasing the CO2 concentration in gas supplied to a microalgae growth system can improve its productivity many fold over using atmospheric air. Flue gas could be a good source of CO2 -enriched gas; however, its usefulness...