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. 2020 Dec 28;6(1):976–987. doi: 10.1021/acsomega.0c05623

Table 2. Kinetic Parameters on the Adsorption of Fe3O4@S-S/PMAA Nanoparticles for Co(II) and Pb(II) in Different Models.

    pseudo-first-order
 pseudo-second-order
  qe,exp (mg·g–1) qe,cal (mg·g–1) K1 (min–1) R2 qe,cal (mg·g–1) K2 (g·mg–1·min–1) R2
Pb(II) 84.6 28.6 0.0163 0.9943 86.6 0.0018 0.9995
Co(II) 47.9 39.8 0.0202 0.9893 51.8 0.0008 0.9987