Table 3. Adsorption Thermodynamics Parameters.
| concentration (ppm) of SF/M(II/III)/temperature (K) | –ΔG0 (kJ mol–1) of SF/Cd(II)/Hg(II)/Cr(III) | –ΔH0 (kJ mol–1) of SF/Cd(II)/Hg(II)/Cr(III) | ΔS0 (J mol–1 K–1) of SF/Cd(II)/Hg(II)/Cr(III) |
|---|---|---|---|
| PANIPN41 | |||
| 5/5/293 | 4.69/10.36/11.42/10.49 | 12.85/28.45/12.89/29.09 | –27.93/–63.08/–4.45/–64.84 |
| 5/5/303 | 4.21/8.81/10.83/8.96 | ||
| 5/5/313 | 3.87/8.49/11.33/8.45 | ||
| 5/5/323 | 3.48/8.37/11.01/8.48 | ||
| 10/15/293 | 6.37/8.79/10.81/8.86 | 7.71/8.93/2.13/7.35 | –4.59/–0.71/27.14/4.91 |
| 10/15/303 | 6.09/8.62/10.34/8.80 | ||
| 10/15/313 | 5.89/8.75/10.68/8.73 | ||
| 10/15/323 | 5.64/8.69/10.85/9.07 | ||
| 15/25/293 | 7.24/7.86/8.64/7.99 | 14.18/6.99/–1.99/7.51 | –23.53/2.80/36.23/1.43 |
| 15/25/303 | 6.89/7.81/8.94/7.87 | ||
| 15/25/313 | 6.36/7.79/9.34/7.88 | ||
| 15/25/323 | 5.95/7.96/9.72/8.05 | ||
| 20/35/293 | 7.34/6.76/6.06/6.66 | 14.61/3.65/–9.17/2.95 | –24.76/10.59/52.66/12.68 |
| 20/35/303 | 6.92/6.88/7.04/6.83 | ||
| 20/35/313 | 6.35/6.92/7.74/6.88 | ||
| 20/35/323 | 6.02/7.10/7.69/7.06 | ||
| 25/45/293 | 7.02/5.59/3.89/5.44 | –/2.54/–11.57/1.30 | –/10.26/53.20/14.10 |
| 25/45/303 | 6.59/5.62/4.76/5.57 | ||
| 25/45/313 | 6.09/5.76/5.07/5.71 | ||
| 25/45/323 | 4.94/5.89/5.54/5.86 | ||
| 30/55/293 | 6.64/4.28/3.01/4.11 | 21.56/–3.16/–4.97/–3.70 | –50.37/25.40/27.36/26.86 |
| 30/55/303 | 6.24/4.57/3.36/4.55 | ||
| 30/55/313 | 5.67/4.75/3.64/4.70 | ||
| 30/55/323 | 4.58/5.07/3.82/4.94 | ||
| PANIPN21 | |||
| 5/5/293 | 1.86/7.92/11.42/8.06 | 14.64/11.29/13.74/10.34 | –31.74/11.19/8.28/–7.78 |
| 5/5/303 | 1.84/8.18/11.08/8.03 | ||
| 5/5/313 | 1.52/7.52/11.09/7.80 | ||
| 5/5/323 | 1.29/7.76/11.17/7.89 | ||
| 10/15/293 | 2.57/7.13/9.42/7.47 | 11.99/0.87/–1.37/4.22 | –17.09/21.38/36.86/11.10 |
| 10/15/303 | 2.49/7.36/9.80/7.55 | ||
| 10/15/313 | 2.44/7.56/10.17/7.74 | ||
| 10/15/323 | 2.36/7.76/10.53/7.78 | ||
| 15/25/293 | 2.75/6.14/8.03/6.18 | 16.14/2.25/–3.58/2.41 | 29.16/13.31/39.82/12.90 |
| 15/25/303 | 2.72/6.29/8.57/6.33 | ||
| 15/25/313 | 2.57/6.41/8.92/6.43 | ||
| 15/25/323 | 2.46/6.54/9.23/6.58 | ||
| 20/35/293 | 2.73/5.47/7.45/5.03 | 15.37/5.49/–2.47/1.59 | –26.84/0.44/33.82/11.78 |
| 20/35/303 | 2.69/5.19/7.73/5.17 | ||
| 20/35/313 | 2.55/5.32/8.21/5.29 | ||
| 20/35/323 | 2.45/5.42/8.40/5.37 | ||
| 25/45/293 | 2.58/3.74/5.72/3.63 | 13.91/2.52/–6.17/–3.53 | –23.40/21.40/40.51/24.55 |
| 25/45/303 | 2.52/3.99/6.04/3.96 | ||
| 25/45/313 | 2.41/4.17/6.62/4.41 | ||
| 25/45/323 | 2.31/4.39/6.87/4.39 | ||
| 30/55/293 | 2.43/2.67/4.41/2.58 | 15.93/–6.10/–4.65/–6.62 | –31.56/29.99/30.90/31.53 |
| 30/55/303 | 2.37/3.02/4.71/2.99 | ||
| 30/55/313 | 2.22/3.26/5.03/3.24 | ||
| 30/55/323 | 1.99/3.59/5.33/3.54 | ||