Modified carbon nanotubes/tetraethylenepentamine for CO2 capture

•Modified carbon nanotubes (MCNTs) were prepared using a KOH reagent.•MCNTs/tetraethylenepentamine was prepared as a CO2 sorbent.•Under optimal conditions, the CO2 sorption capacity reached 5mmol CO2/g.•High CO2 desorption rate of the sorbent can considerably reduce CO2 capture cost. In this work, a...

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