Adsorption kinetic parameters for Cr(vi) removal by AC-3.0-700.

Kinetics/concentration	Concentration (mg L−1)
	50	100	200	300	400
q e,exp	24.93	46.91	94.03	122.94	163.68
Pseudo-first order
q e,cal	3.84	6.14	10.50	7.62	27.86
k 1	0.10918	0.04951	0.05776	0.10774	0.04958
R 2	0.98283	0.76039	0.97992	0.93996	0.74521
Pseudo-second order
q e,cal	25.19	47.26	94.79	123.46	165.56
k 2	0.07210	0.02919	0.01795	0.03882	0.00602
R 2	0.99989	0.99946	0.99972	0.99999	0.99897
Weber–Morris
C	21.63523	39.35885	82.41067	115.79862	130.59249
k id	0.5386	1.15705	1.7455	1.2081	4.94184