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Table 6 Kinetic parameters for Cd2+ and Pb2+ removal using the home-prepared porous carbons

From: Adsorption of aqueous Cd(II) and Pb(II) on activated carbon nanopores prepared by chemical activation of doum palm shell

Adsorbent Metal q e (mg/g) Pseudo-second order
k 2 (g/mg min) R2
KOH-AC Cd2+ 0.992 3.83 0.999
KOH-AC Pb2+ 0.985 12.61 1.000
NaOH-AC Pb2+ 0.993 1.82 0.999