Table 4 Thermodynamic values for uptake of RY4 dye and Cd(II) ion by BMDA
Temp (K) | Cd(II) ions | RY4 dye | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Kd | ΔG (J mol−1) | ΔH (kJ mol−1) | ΔS (J mol−1 K−1) | R2 | Kd | ΔG (J mol−1) | ΔH (kJ mol−1) | ΔS (J mol−1 K−1) | R2 | |
303 | 1.02 | − 49.24 | 26.28 | 86.57 | 0.989 | 1.11 | − 251.76 | 18.02 | 60.16 | 0.999 |
308 | 1.11 | − 255.92 | 1.20 | − 461.75 | ||||||
313 | 1.39 | − 850.95 | 1.39 | − 853.99 | ||||||
318 | 1.66 | − 1342.47 | 1.54 | − 1140.71 | ||||||