Table 2. Cr(VI) adsorption kinetic parameters of Alg/PKL beads
C
0
(mg/L)
Pseudo-first order
Pseudo-second order
k
1
(h
–1
)
q
e
(mg/g)
R
2
k
2
(g/mg/h)
q
e
(mg/g)
R
2
1,000
1.66
228.54
0.957
2.29×10
–3
436.68
0.998
Alg: alginate, PKL: polyethyleneimine-grafted lignin.