CO2 Capture via Nanofluids

Abstract

Carbon dioxide (CO2), as one of the major greenhouse gas emissions, has attracted much attention in the world. Magnetite Fe3O4 nanoparticles have a tendency to aggregate in solution to reduce their surface energy due to their large surface area to volume ratio. The use of the nanofluids to absorb CO2 has received increasing attention due to its unique advantages. Since the establishment of carbon nanotubes, scientists have begun to discover the excellent properties of the particles. Carbon nanotubes have shown great potential in the field of gas storage. X. Fang et al. studied the effect of nanoparticles on the CO2 absorption by ammonia solutions. Y. Tang et al. used a bubble reactor to study the strengthening effect of Magnesium oxide particles on CO2 absorption using anhydrous ethanol as the base liquid. Chemical absorption is regarded as an effective method for capturing CO2. The liquid type is a determining factor to the capturing performance.