| 
   
  | Carbon sample |  | SCBACS |  
  |  | qe exp(mg/g) | 58.68 |  
  | First-order kinetic equation. | q1 (mg/g) | 15.59 |  
  | k1 (1/min) | 0.00393 |  
  | R12 | 0.81102 |  
  | Second-order kinetic equation. | q2 (mg/g) | 58.0046 |  
  | k2 [g/(mg min)] | 2.074x10-3 |  
  | R22 | 0.99883 |  
  | Intra-particle diffusion equation. | kint [mg/(g min1/2)] | 1.45194 |  
  | C | 38.96171 |  
  | Rint2 | 0.98501 |  |