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- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received February 27, 2025
Revised May 6, 2025
Accepted May 27, 2025
Available online September 25, 2025
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Adsorption of Diclofenac Sodium and 2, 4-Dichlorophenoxyacetic on Magnetic MIL-100(Fe) Composite Obtained at Room Temperature
https://doi.org/10.1007/s11814-025-00487-0
Abstract
Metal–organic frameworks (MOFs) have found a wide range of applications in the fi eld of water treatment owing to their
large specifi c surface area, well-developed cavities and abundant active centers. In this study, a magnetic MOF composite
(Fe 3 O 4 /MIL-100(Fe)) was synthesized via a one-pot synthesis at room temperature, and its adsorption capacities towards
diclofenac sodium (DS) and 2,4-dichlorophenoxyacetic acid (2, 4-D) were assessed. The maximum adsorption capacity
of Fe 3 O 4 /MIL-100(Fe) was 249 mg·g –1 for DS (pH 6.8, 313 K), whereas it was found to be 163 mg·g –1 for 2, 4-D (pH 3.0,
293 K). Results from fi tting isotherm models with the equilibrium data suggested that both the Langmuir and Koble–Corrigan
models be suitable for describing the adsorption equilibrium data. Results from kinetic model analysis suggested that both
the pseudo-second-order and double-constant model could describe the uptake of DS and 2, 4-D onto Fe 3 O 4 /MIL-100(Fe)
well, respectively. The adsorption processes include both homogeneous physical and chemical adsorptions, such as electrostatic
interaction, hydrogen bonding, and π–π interaction. Furthermore, Fe 3 O 4 /MIL-100(Fe) showed good regeneration and
reusability, indicating that the synthesized adsorbent is highly effi cient, relatively cost-eff ective, and stable.
