Research Article
Adsorptive Removal of Benzene and Toluene from Aqueous Environments by Cupric Oxide Nanoparticles: Kinetics and Isotherm Studies
Table 1
Kinetic parameters for the adsorption of benzene/toluene by CuO-NPs for different concentrations at pH = 7.
| , mg/L | Pseudo-first-order | Pseudo-second-order | Intraparticle diffusion | (1/min) | (mg/g) | | (g/mg/min) | , mg/g | | (g/mg/min0.5) | (mg/g) | |
| Benzene | ā | 10 | 0.0235 | 1056 | 0.8629 | 1.5511 | 0.0543 | 0.9441 | 1.3165 | 1.4322 | 0.9262 | 50 | 0.0398 | 38.66 | 0.6156 | 0.1912 | 0.0108 | 0.9922 | 6.876 | 13.179 | 0.871 | 100 | 0.0465 | 164.35 | 0.9476 | 0.0955 | 0.0055 | 0.9823 | 12.151 | 37.5 | 0.9407 | 200 | 0.0515 | 224.08 | 0.9149 | 0.0246 | 0.0029 | 0.9971 | 18.694 | 136.61 | 0.9061 | Toluene | ā | 10 | 0.021 | 9.39 | 0.8922 | 1.5549 | 0.063 | 0.9342 | 0.9983 | 2.7892 | 0.9055 | 50 | 0.037 | 40.07 | 0.8834 | 0.1322 | 0.0123 | 0.9975 | 5.251 | 23.492 | 0.8835 | 100 | 0.0453 | 109.51 | 0.9077 | 0.0709 | 0.006 | 0.9926 | 10.097 | 51.504 | 0.9335 | 200 | 0.0499 | 165.67 | 0.9003 | 0.024 | 0.0031 | 0.9926 | 15.521 | 146.66 | 0.8969 |
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