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Table 1

The sorption rate constants associated with pseudo-first- and pseudo-second-order kinetic and intraparticle diffusion models from individual solutions of quinoline and pyridine, and a mixed solution of the two: OWSAC (0.1 g) added to a 100 mL aqueous solution containing 200 μL L−1 of either pyridine, quinoline or a mixture of the two (pyridine:quinoline = 2:3 v/v) in a 250 mL glass flask at room temperature under 160 rpm shaking, detected by spectrophotometer and HPLC

Adsorption dynamic equations and parametersQuinolinePyridineMixture of quinoline and pyridine (3:2)
Pseudo-first-order 
k1(min−10.0064 0.0064 0.0076 
 qeexp(mg g−1166.907 ± 0.0658 72.1655 ± 0.0589 124.2910 ± 0.0784 
 qecal(mg g−125.7929 ± 0.0457 17.5914 ± 0.0279 37.446 ± 0.0368 
 R2 0.9086 0.9829 0.9421 
Pseudo-second-order kinetic model 
k2(g·mg−1 min−10.0001 0.0014 0.0242 
 qeexp(mg g−1166.907 ± 0.075 72.1655 ± 0.0653 124.2910 ± 0.0358 
 qecal(mg g−1166.667 ± 0.0684 72.4638 ± 0.0569 125 ± 0.0469 
 R2 0.9998 0.9996 0.9992 
Intraparticle diffusion 
Kt1 127.53 44.0076 44.4518 
 Pseudo-first-order 3.342 1.6 4.4043 
 Pseudo-first-order 0.6741 0.429 0.8835 
Adsorption dynamic equations and parametersQuinolinePyridineMixture of quinoline and pyridine (3:2)
Pseudo-first-order 
k1(min−10.0064 0.0064 0.0076 
 qeexp(mg g−1166.907 ± 0.0658 72.1655 ± 0.0589 124.2910 ± 0.0784 
 qecal(mg g−125.7929 ± 0.0457 17.5914 ± 0.0279 37.446 ± 0.0368 
 R2 0.9086 0.9829 0.9421 
Pseudo-second-order kinetic model 
k2(g·mg−1 min−10.0001 0.0014 0.0242 
 qeexp(mg g−1166.907 ± 0.075 72.1655 ± 0.0653 124.2910 ± 0.0358 
 qecal(mg g−1166.667 ± 0.0684 72.4638 ± 0.0569 125 ± 0.0469 
 R2 0.9998 0.9996 0.9992 
Intraparticle diffusion 
Kt1 127.53 44.0076 44.4518 
 Pseudo-first-order 3.342 1.6 4.4043 
 Pseudo-first-order 0.6741 0.429 0.8835 
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