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Table 1 Summary of the constants of different kinetic models for adsorption of AO67onto RPSF at different concentrations and different temperatures

From: Synthetic and application of a novel resin from waste foam packing for adsorption of Acid Orange 67 from aqueous solution

ConstantsInitial dye concentration (mg/L)Temperature (°C)
 50100150254060
qe exp., mg/g18.820.422.423.4123.9228.31
Pseudo-first-order kinetics
K1, min−10.01290.02970.01660.02880.02160.02
qecal, mg/g5.0418.5918.5918.2212.7813.092
R20.90310.86420.90440.9010.9090.924
Pseudo-second-order kinetics
k2, g/mg min0.0190.0122.3 × 10−30.00270.00650.0073
 H7.226.181.751.884.16.24
qecal, mg/g19.4922.6827.5526.3925.12629.24
R20.99850.99940.98090.97120.99380.998
Elovich Constant
 Α19.94 × 104142.65.695.6633.2940.8
 Β0.8820.4120.20.19940.2750.2278
R20.85240.86860.8320.83570.9000.9083
Binghams Constant
 Α0.00460.00520.00660.010.00710.0087
K0487.2469.35460.74460.8468.1470
R20.9040.9020.91820.9170.92270.9274
Intra-particle diffusion model
kdiff10.4791.651.6601.6641.5742.634
  R20.89550.89280.65310.65310.82560.9319
kdiff20.49150.61281.271.271.351.46
  R20.90040.89030.85190.85190.93980.689