Research Article
Green Synthesis of S- and N-Codoped Carbon Nanospheres and Application as Adsorbent of Pb (II) from Aqueous Solution
Figure 5
N2 adsorption and desorption curves and pore size distributions of (a) CNs, (b) N-CNs, and (c) S-CNs.
(a) |
(b) |
(c) |