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Table 1 Parameters for the Ni and Zn sorption kinetics on γ-Al2O3 in single- and binary-sorbate systems at pH 7.5

From: Competitive sorption of Ni and Zn at the aluminum oxide/water interface: an XAFS study

Sample First second order Pseudo second order
qe (mg−1 g−1) k1 (mg−1 g−1 h−1) R2 qe (mg−1 g−1) k2 (mg−1 g−1 h−1) R2
Ni in single-sorbate system 11.87 0.396 0.995 20.00 0.05 0.998
Ni in binary-sorbate system 13.21 0.258 0.981 22.22 0.06 0.994
Zn in single-sorbate system 4.81 0.230 0.880 22.73 0.97 1.000
Zn in binary-sorbate system 1.95 0.471 0.961 22.73 0.28 1.000
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