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Table 2

Kinetic parameters for the adsorption of phosphorus onto SAC and PAC

AdsorbentsPseudo-first-order
Pseudo-second-order
Intra-particle diffusion
qe(exp)qe(cal)k1R12qe(cal)k2R22kpR32
SAC 1.6262 1.6254 0.0247 0.7954 1.6798 0.0495 0.9955 0.0559 0.9626 
PAC 2.2347 2.2641 0.0147 0.7675 2.2614 0.1513 0.9995 0.0217 0.9647 
AdsorbentsPseudo-first-order
Pseudo-second-order
Intra-particle diffusion
qe(exp)qe(cal)k1R12qe(cal)k2R22kpR32
SAC 1.6262 1.6254 0.0247 0.7954 1.6798 0.0495 0.9955 0.0559 0.9626 
PAC 2.2347 2.2641 0.0147 0.7675 2.2614 0.1513 0.9995 0.0217 0.9647 

qe (exp) was obtained from experiments and qe (cal) is calculated from models.

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