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Table 4 The fitting results based on the pseudo-first, pseudo-second order and intraparticle diffusion kinetic models

From: Influence of sulfide, chloride and dissolved organic matter on mercury adsorption by activated carbon in aqueous system

  Hg + Cl Hg + S Hg + DOM
Pseudo first-order
 k1 (min− 1) 0.0023 0.0023 0.0009
 qe1 (μg g− 1) 10.7 1.7 8.9
 R2 0.9998 0.6886 0.9843
Pseudo second-order
 k2 (g μg−1 min− 1) 0.00057 0.014 0.00022
 qe2 (μg g−1) 16.1 15.4 11.6
 R2 0.9828 0.9998 0.8503
Intraparticle diffusion
 kp (μg g−1 min-0.5) 0.40 0.14 0.25
 R2 0.9980 0.7467 0.9508
 Experimental qe (μg g−1) 14.3 15.3 10.4
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Sustainable Environment Research

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