Sorption Behavior of Hexabromocyclododecanes (HBCDs) on Weihe River Sediment
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Sorption Experiments
2.3. Analytical Methods
3. Results and Discussion
3.1. Sorption Kinetics
3.2. Sorption Isotherms
3.3. Sorption Thermodynamics
3.4. Effect of Temperature on HBCD Sorption
3.5. Effect of pH on HBCD Sorption
3.6. Effect of the HA Concentration on HBCD Sorption
3.7. Effect of the Ionic Strength on HBCD Sorption
3.8. Sorption Mechanism
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Conflicts of Interest
References
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Langmuir Model Parameter | Freundlich Model Parameter | ||||||||
---|---|---|---|---|---|---|---|---|---|
Qm (mg/Kg) | KL | R2 | RSS/dof | RL | KF | n | R2 | RSS/dof | |
α-HBCD | 443.56 | 6.23 | 0.9867 | 32.05 | 0.243 | 1233.43 | 0.83 | 0.9805 | 41.53 |
β-HBCD | 614.29 | 19.54 | 0.9766 | 62.72 | 0.093 | 5424.61 | 0.87 | 0.9737 | 62.73 |
γ-HBCD | 1146.37 | 91.41 | 0.9486 | 141.89 | 0.021 | 71,870.33 | 0.96 | 0.9388 | 150.08 |
T(K) | K | ΔG (kJ·mol−1) | ΔH (kJ·mol−1) | ΔS (kJ·mol−1) | |
---|---|---|---|---|---|
α-HBCD | 298 | 3127.58 | −19.94 | −49.08 | −0.0975 |
308 | 2341.07 | −19.22 | |||
318 | 1426.58 | −17.99 | |||
β-HBCD | 298 | 25286.73 | −25.12 | −64.87 | −0.1335 |
308 | 14274.37 | −23.70 | |||
318 | 8598.41 | −22.45 | |||
γ-HBCD | 298 | 293639.20 | −31.19 | −75.40 | −0.1480 |
308 | 183989.34 | −30.03 | |||
318 | 88950.41 | −28.23 |
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Wang, X.; Yuan, X.; Yang, S. Sorption Behavior of Hexabromocyclododecanes (HBCDs) on Weihe River Sediment. Int. J. Environ. Res. Public Health 2020, 17, 247. https://doi.org/10.3390/ijerph17010247
Wang X, Yuan X, Yang S. Sorption Behavior of Hexabromocyclododecanes (HBCDs) on Weihe River Sediment. International Journal of Environmental Research and Public Health. 2020; 17(1):247. https://doi.org/10.3390/ijerph17010247
Chicago/Turabian StyleWang, Xueli, Xiaoyu Yuan, and Shengke Yang. 2020. "Sorption Behavior of Hexabromocyclododecanes (HBCDs) on Weihe River Sediment" International Journal of Environmental Research and Public Health 17, no. 1: 247. https://doi.org/10.3390/ijerph17010247