Experimental qe (mg g-1)

Langmuir   

Freundlich

 

qmax (mg g-1)

b (L mg-1)

RL

R2

KF

1/n

R2

1264.95

1264.03

0.121

0.004

0.99028

447.6

0.157

0.8499

Table 3: The Langmuir and Freundlich isothermsmodel constants and their respective correlation coefficients (R2) for the sorption of acid blue 9 from aqueous solution by DCTS.