Figure 6.

Pure Pb (II) adsorption data in pure mesoporous carbon (MC) and iron and sulfur dual-doped mesoporous carbons. All the experiments were performed in batch mode in 25 mL 100 ppb ($\mathsf{\mu }$g/L) Pb(II) and 0.025 g adsorbent (Adsorbent concentration 1 g/L).