Water-Dispersible Multiwalled Carbon Nanotubes Obtained from Citric-Acid-Assisted Oxygen Plasma Functionalization
Figure 3
(a) Settling speed, , calculated from the Abs (250 nm) versus time graphs for the -MWCNTs, -MWCNTs, and -MWCNTs. (b) Photographs of the dispersion of 20 mg of (i) -MWCNTs, (ii) -MWCNTs, and (iii) -MWCNTs in 10 mL of pure water using 2 min of bath sonication.
