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Table 1 Kinetic data values for the adsorption of cadmium by OP

From: Orange peel as low-cost adsorbent in the elimination of Cd(II) ion: kinetics, isotherm, thermodynamic and optimization evaluations

 Co (mg/L)50100150200250
First orderQe(exp) (mg/g)26.63645.92177.38393.386122.061
Qe(cal) (mg/g)26.45043.70078.25096.200135.950
k1 (min−1)0.1180.1340.0760.1240.129
R20.9870.9880.9950.9640.989
% SSE0.0020.0010.0030.0030.027
Second orderQe(cal) (mg/g)28.72549.78085.362101.530132.428
k2 (g/mg/min)0.2060.1040.2010.0210.111
R20.9880.9970.9950.9880.997
% SSE0.0060.0040.0010.0020.001
Elovichα (mg/g/min)32.44356.81530.94598.310100.000
β (g/mg)0.2510.1430.0710.0690.050
R20.9940.9910.9960.9960.958
Intraparticle diffusionKid (mg/g/min1/2)1.6332.9435.1775.9667.763
Ci (mg/g)9.19215.51720.80731.04641.320
R20.9570.9590.9770.9800.978
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