Estudios de cinética de adsorción de atrazina sobre una bentonita
DOI:
https://doi.org/10.65093/aci.v16.n4.2025.41Keywords:
atrazine, montmorillonite, adsorption, environmental remediationAbstract
Natural and purified samples of an Argentine bentonite (BG) were investigated as adsorbent materials for atrazine. The adsorption processes were analyzed through the application of kinetic models, with the purpose of predicting characteristic parameters and determining adsorption capacities. The quality of the model fitting was evaluated using the linear correlation coefficient (R²). The kinetic parameters obtained revealed that bentonite exhibits a high adsorption capacity for atrazine, which increases both with decreasing temperature and with the higher content of the clay fraction. This behavior confirms that purification of the material enhances its performance by increasing the availability of active sites and reducing the interference of impurities. Overall, these results highlight the potential of BG bentonite and its purified fraction as effective adsorbents in remediation processes, offering a sustainable alternative to address the environmental issues associated with pesticide use.
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References
Agboola, O.D. & Benson, N.U. (2021). Physisorption and chemisorption mechanisms influencing micro (nano) plastics-organic chemical contaminants interactions: a review. Frontiers in Environmental Science, 9, 678574. https://doi.org/10.3389/fenvs.2021.678574
Ahmad, M., Riaz, U., Iqbal, S., Ahmad, J., Rasheed, H., Al-Farraj, A.S., et al. (2022). Adsorptive removal of atrazine from contaminated water using low-cost carbonaceous materials: A review. Frontiers in Materials, 9, 909534. https://doi.org/10.3389/fmats.2022.909534
Basiony, M.S., Gaber, S.E., Ibrahim, H. & Elshehy, E.A. (2020). Synthesis and characterization of Al-pillared bentonite for remediation of chlorinated pesticide-contaminated water. Clays and Clay Minerals, 68 (3), 197-210. https://doi.org/10.1007/s42860-020-00072-y
Castrillo, N., Mercado, A. & Volzone, C. (2018). Solid desiccants from natural and modified bentonites. Cerâmica, 64 (372), 526-537. https://doi.org/10.1590/0366-69132018643722447
Dutta, A. & Singh, N. (2015). Surfactant-modified bentonite clays: preparation, characterization, and atrazine removal. Environmental science and pollution research, 22 (5), 3876-3885. https://doi.org/10.1007/s11356-014-3656-3
Gagneten, A.M., Regaldo, L., Carriquiriborde, P., Reno, U., Kergaravat, S.V., Butinof, M., et al. (2023). Atrazine characterization: an update on uses, monitoring, effects, and environmental impact, for the development of regulatory policies in Argentina. Integrated Environmental Assessment and Management, 19 (3), 684-697. https://doi.org/10.1002/ieam.4690
Lv, W., Zhang, R., Sun, F., Guo, Y., Jiao, W., Wang, H., et al. (2025). Application of Physical Adsorption and Chemisorption Techniques in Heterogeneous Catalytic Research: A Review. Kinetics and Catalysis, 1-26. https://doi.org/10.1134/S0023158424602596
Mekhamer, W.K. (2016). Energy storage through adsorption and desorption of water vapour in raw Saudi bentonite. Arabian Journal of Chemistry, 9, S264-S268. https://doi.org/10.1016/j.arabjc.2011.03.021
Salomón, Y.L., Georgin, J., Allasia, D.G.P., Netto, M.S., Aniagor, C.O., Ighalo, J.O., et al. (2025). A Comprehensive Review on Atrazine Adsorption: From Environmental Contamination to Efficient Removal Technologies. Sustainability, 17 (23), 10455. https://doi.org/10.3390/su172310455
Tran, H.N. (2023). Applying linear forms of pseudo-second-order kinetic model for feasibly identifying errors in the initial periods of time-dependent adsorption datasets. Water, 15 (6), 1231. https://doi.org/10.3390/w15061231
Wang, P., Shen, X., Qiu, S., Zhang, L., Ma, Y. & Liang, J. (2024a). Clay-based materials for heavy metals adsorption: Mechanisms, advancements, and future prospects in environmental remediation. Crystals, 14 (12), 1046. https://doi.org/10.3390/cryst14121046
Wang, H., Zhao, L., & Hou, W. (2024b). Pseudo-second-order kinetic equation for describing the effect of sorbent and sorbate concentrations. Langmuir, 40 (7), 3559-3568. https://pubs.acs.org/doi/10.1021/acs.langmuir. 3c03235
Yang, X., Li, Y., Gan, M., Chen, Y., Meng, H., Li, L., et al. (2025). Adsorption and desorption effect of modified bentonite on soil heavy metal Pb/Cd and the feasibility assessment of reducing the ecotoxicity. Environmental Sciences Europe, 37 (1), 105. https://doi.org/10.1186/s12302-025-01144-3
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