Table 6 Thermodynamic characterization of MB adsorption at concentration 10 ppm, remove by (ACRS).

From: Adsorption of cationic dye onto Raphanus seeds: optimization, adsorption kinetics, thermodynamic studies

T (K)

298

303

308

313

318

1000/T (K−1)

3.355705

3.30033

3.246753

3.194888

3.144654

qe

7.76425

3.420033

2.773105

2.573326

3.049253

Ce

0.022136

0.006087

0.003265

0.002214

0.001107

Ke

350.75

561.8182

849.322

1162.5

2755

lnKe

5.860074

6.331178

6.744438

7.058328

7.921173

ΔG° (kJ/mol)

−14,518.8

−15,949.1

−17,270.6

−18,367.8

−20,942.4

∆H° (kJ/mol)

76.224

ΔS° (kJ/mol K)

304.01

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