▎ 摘　　要

NOVELTY - A composition comprises a nanocarbon support which is selected from 60C fullerene, nano-graphite, graphene, nanocarbon ribbons, graphite intercalation compounds, graphite oxide, nano-coal, and/or nanohorns; and aliphatic amine attached to the nanocarbon support to form an aliphatic amine-nanocarbon material. USE - As a nano-based material useful in removal of carbon dioxide from a gas source formed from the combustion of a hydrocarbon or carbon material such as coal. ADVANTAGE - The aliphatic amine-nanocarbon material has a CO2 absorption capacity at ambient pressure and temperature of at least 10 wt.% (preferably at least 15 wt.%; more preferably at least 20 wt.%; especially 20-25 wt.%) of the aliphatic amine-nanocarbon material. Using nanocarbons gives the absorption system a large surface area, which is critical in any absorption system; and the carbon dioxide can be captured from any flue gas stream or confined area containing CO2. The polyethyleneimine-nanocarbon material (PEI-NC) can be used as a new regenerable carbon dioxide scrubber for use in small confined areas such as a space shuttle, submarine, or scuba suits and for use in the separation of carbon dioxide from large scale flue gas streams. The scrubber material is a solid rather that a liquid based system. This significantly cuts the regeneration costs for several reasons, such as the requirement of additional solvent after regeneration, which is the case in the current industrial standard, monoethanol amine (MEA). Additionally, regeneration temperature is significantly lower than a liquid based system, ~75 degrees C for the PEI-NC system compared to ~120 degrees C for MEA. The amine functionalities are grafted to a nanocarbon backbone, which gives a large surface area for absorption.