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Table 2

Isotherm parameters of NAP, ACN, and PHN adsorption onto NH2-SBA-15

PAHs
Isotherm modelsParametersNAPACNPHN
Langmuir qm,exp (mg g−11.63 1.01 0.60 
 qm,cal (mg g−11.92 1.41 0.76 
 b(L g−10.864 0.630 0.451 
 R2 0.979 0.976 0.989 
 RL 0.1–0.5 0.1–0.3 0.1–0.7 
Freundlich KF (mg(n−1)/n g−1 L−1 0.922 0.584 0.284 
 1/n 0.265 0.316 0.334 
 R2 0.881 0.901 0.924 
Temkin qm (L g−19.94 6.35 4.29 
 a (J mol−15997.7 7651.3 13614.1 
 R2 0.943 0.957 0.972 
PAHs
Isotherm modelsParametersNAPACNPHN
Langmuir qm,exp (mg g−11.63 1.01 0.60 
 qm,cal (mg g−11.92 1.41 0.76 
 b(L g−10.864 0.630 0.451 
 R2 0.979 0.976 0.989 
 RL 0.1–0.5 0.1–0.3 0.1–0.7 
Freundlich KF (mg(n−1)/n g−1 L−1 0.922 0.584 0.284 
 1/n 0.265 0.316 0.334 
 R2 0.881 0.901 0.924 
Temkin qm (L g−19.94 6.35 4.29 
 a (J mol−15997.7 7651.3 13614.1 
 R2 0.943 0.957 0.972 
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