The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
A general kinetic model for adsorption: Theoretical analysis and modeling
Abstract
Abstract Adsorption technology has been widely applied for water and wastewater treatment due its low cost and easy operation. Understanding the adsorption kinetic could help to design the adsorption system. The pseudo-first-order (PFO) and pseudo-second-order (PSO) kinetic models were usually used, however their specific theoretical meanings and the application conditions were still unclear. In addition, for a practical adsorption system, the kinetic process is complex, which may include both the PFO and PSO kinetic process. Therefore, it is necessary to develop a general kinetic model to describe the whole adsorption process more accurately. In this paper, based on the Langmuir kinetics, and the theoretical analysis of the PFO and PSO models, a general form of adsorption kinetic model was developed. The experimental data from our previous studies and literature were used to fit the mixed-order (MO) model. The results showed that it is capable of describing both the PFO and PSO kinetic process and suitable for whole adsorption process, suggesting that it can describe the kinetics of whole adsorption process better. The MO kinetic model can be solved by using 4–5 order Runge-Kutta method, and the solving program as well as the method illustration was provided in Appendixes, which can be used by the readers who are interested in this model.
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Citations
Cites
The adsorption of gases on plane surfaces of glass, mica and platinum
Langmuir, I. (1918) · Journal of the American Chemical Society · doi:10.1021/ja02242a004 · Cited by 23,242
Cited by
Adsorption kinetic models: Physical meanings, applications, and solving methods
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Self-citationAdsorption isotherm models: Classification, physical meaning, application and solving method
Wang, J., & Guo, X. (2020) · Chemosphere · doi:10.1016/j.chemosphere.2020.127279 · Cited by 2,289
Self-citationRápó, E., & Tonk, S. (2021) · Molecules · doi:10.3390/molecules26175419 · Cited by 490
Ezzati, R. (2020) · Chemical Engineering Journal · doi:10.1016/j.cej.2019.123705 · Cited by 482
Lei, X., Lian, Q., Zhang, X., Karsili, T. K., Holmes, W., Chen, Y., Zappi, M. E., & Gang, D. D. (2023) · Environmental Pollution · doi:10.1016/j.envpol.2023.121138 · Cited by 325
Metadata
- Authors
- Guo, X., & Wang, J.
- Venue
- Journal of Molecular Liquids
- Publisher
- Elsevier BV
- Published
- 2019-08
- Volume
- 288
- Pages
- 111100
- ISSN
- 0167-7322 (ISSN-L)
- OpenAlex
- W2947132733
- Cited by
- 550
- References
- 1
- FWCI
- 19.02
- Type
- journal article
- Language
- en
- Open access
- closed
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- Guo, X., & Wang, J. (2019). A general kinetic model for adsorption: Theoretical analysis and modeling. Journal of Molecular Liquids. https://doi.org/10.1016/j.molliq.2019.111100
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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