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Table 2

(A) Evaluated parameters of various adsorption Isotherms for the Cu2+ adsoption ‘onto’ FLSP, APSP and PSP. (B) Kinetics of adsorption

(A)
AdsorbentsParametersFreundlich isothermLangmuir isothermTemkin isothermDubinin-Radushkevich isotherm
FLSP Slope 0.38127 0.06174 2.61111 −9.8 × 10−8 
Intercept 1.54679 0.18052 5.43261 2.34017 
R2 0.94445 0.986667 0.95156 0.75789 
RL/1/n/B/E 1/n = 0.381 RL = 3.1 B = 2.61 E = 1.6 
APSP Slope 0.36312 0.19075 2.09729 −2.5 × 10−7 
Intercept 1.26935 0.0917 3.78322 2.1883 
R2 0.87716 0.99878 0.95612 0.88683 
RL/1/n/B/E 1/n = 0.363 RL = 1.13 B = 2.09729 E = 0.9 
PSP Slope 0.20879 0.07095 0.75261 −3.1 × 10−7 
Intercept 1.15192 0.13368 3.71053 1.79318 
R2 0.5042 0.9942 0.41252 0.92741 
RL/1/n/B/E 1/n = 0.208 RL=0.7 B = 0.7526 0.7 
(B)
AdsorbentsParametersPseudo 1st orderPseudo 2nd orderElovichBangham's pore diffusion
FLSP R2 0.8211 0.9839 0.77858 0.7454 
APSP R2 0.8684 0.9718 0.82913 0.84447 
PSP R2 0.89465 0.9867 0.87942 0.86834 
(A)
AdsorbentsParametersFreundlich isothermLangmuir isothermTemkin isothermDubinin-Radushkevich isotherm
FLSP Slope 0.38127 0.06174 2.61111 −9.8 × 10−8 
Intercept 1.54679 0.18052 5.43261 2.34017 
R2 0.94445 0.986667 0.95156 0.75789 
RL/1/n/B/E 1/n = 0.381 RL = 3.1 B = 2.61 E = 1.6 
APSP Slope 0.36312 0.19075 2.09729 −2.5 × 10−7 
Intercept 1.26935 0.0917 3.78322 2.1883 
R2 0.87716 0.99878 0.95612 0.88683 
RL/1/n/B/E 1/n = 0.363 RL = 1.13 B = 2.09729 E = 0.9 
PSP Slope 0.20879 0.07095 0.75261 −3.1 × 10−7 
Intercept 1.15192 0.13368 3.71053 1.79318 
R2 0.5042 0.9942 0.41252 0.92741 
RL/1/n/B/E 1/n = 0.208 RL=0.7 B = 0.7526 0.7 
(B)
AdsorbentsParametersPseudo 1st orderPseudo 2nd orderElovichBangham's pore diffusion
FLSP R2 0.8211 0.9839 0.77858 0.7454 
APSP R2 0.8684 0.9718 0.82913 0.84447 
PSP R2 0.89465 0.9867 0.87942 0.86834 
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