Sample Code T(°C) 1/n Ln Kf R2
  Ac blank 25
35
45
0.03912
0.03425
0.03177
7.44614
7.48023
7.49916
0.6006
0.63252
0.5780
  Ac 4% 25
35
45
0.23825
0.21875
0.1957
6.49468
6.61173
6.75972
0.55408
0.55314
0.58564
  Ac 8% 25
35
45
0.02935
0.02785
0.02652
7.75168
7.76279
7.773
0.88331
0.88524
0.87547
Table 4: Freundlich isotherm parameters and correlation coefficient for adsorption of MB by Ac blank, Ac 4%, Ac 8% at different temperatures.