High adsorption of sodium diclofenac on post-synthetic modified zirconium-based metal-organic frameworks : Experimental and theoretical studies
Copyright © 2021 Elsevier Inc. All rights reserved..
Water pollution by pharmaceuticals is currently a great concern due to their ecological risks. In this study, zirconium-based metal-organic frameworks (UiO-66-(COOH)2) were used for removal of the nonsteroidal anti-inflammatory drug (NSAID) diclofenac sodium (DCF). They have been synthesized using a hydrothermal method. Copper and iron metal ions were incorporated in the framework using post-synthetic modification techniques to produce UiO-66-(COOCu)2 and UiO-66-(COOFe)2. The resulted MOFs were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning/transmission electron microscopy, and Brunauer-Emmett-Teller. The effects of the pH, initial concentration, and adsorption time on the adsorption process of diclofenac were studied. The maximum adsorption capacities obtained on UiO-66-(COOH)2, UiO-66-(COOCu)2, and UiO-66-(COOFe)2 were 480.5, 624.3, and 769.1 mg/g, respectively. The adsorption of diclofenac was found to be better fitted with Langmuir isotherm and pseudo-second-order kinetic models. The adsorption mechanism was investigated using XRD, FT-IR, density functional theory and Monte Carlo simulation, in which the latter method was used to calculate the adsorption energies and determine the possible interactions between diclofenac and the adsorbents. UiO-66-(COOH)2, UiO-66-(COOCu)2, and UiO-66-(COOFe)2 exhibited good recyclability for diclofenac removal, which confirms the sustainability of these materials.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:607 |
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| Enthalten in: |
Journal of colloid and interface science - 607(2022), Pt 1 vom: 05. Feb., Seite 334-346 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Younes, Heba A [VerfasserIn] |
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| Links: |
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| Themen: |
144O8QL0L1 |
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| Anmerkungen: |
Date Completed 17.11.2021 Date Revised 17.11.2021 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.jcis.2021.08.158 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM33051315X |
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| 245 | 1 | 0 | |a High adsorption of sodium diclofenac on post-synthetic modified zirconium-based metal-organic frameworks |b Experimental and theoretical studies |
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| 500 | |a Date Revised 17.11.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2021 Elsevier Inc. All rights reserved. | ||
| 520 | |a Water pollution by pharmaceuticals is currently a great concern due to their ecological risks. In this study, zirconium-based metal-organic frameworks (UiO-66-(COOH)2) were used for removal of the nonsteroidal anti-inflammatory drug (NSAID) diclofenac sodium (DCF). They have been synthesized using a hydrothermal method. Copper and iron metal ions were incorporated in the framework using post-synthetic modification techniques to produce UiO-66-(COOCu)2 and UiO-66-(COOFe)2. The resulted MOFs were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning/transmission electron microscopy, and Brunauer-Emmett-Teller. The effects of the pH, initial concentration, and adsorption time on the adsorption process of diclofenac were studied. The maximum adsorption capacities obtained on UiO-66-(COOH)2, UiO-66-(COOCu)2, and UiO-66-(COOFe)2 were 480.5, 624.3, and 769.1 mg/g, respectively. The adsorption of diclofenac was found to be better fitted with Langmuir isotherm and pseudo-second-order kinetic models. The adsorption mechanism was investigated using XRD, FT-IR, density functional theory and Monte Carlo simulation, in which the latter method was used to calculate the adsorption energies and determine the possible interactions between diclofenac and the adsorbents. UiO-66-(COOH)2, UiO-66-(COOCu)2, and UiO-66-(COOFe)2 exhibited good recyclability for diclofenac removal, which confirms the sustainability of these materials | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Adsorption | |
| 650 | 4 | |a Diclofenac | |
| 650 | 4 | |a Monte Carlo simulation | |
| 650 | 4 | |a Zr-based MOFs | |
| 650 | 7 | |a Metal-Organic Frameworks |2 NLM | |
| 650 | 7 | |a Diclofenac |2 NLM | |
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| 650 | 7 | |a Zirconium |2 NLM | |
| 650 | 7 | |a C6V6S92N3C |2 NLM | |
| 700 | 1 | |a Taha, Mohamed |e verfasserin |4 aut | |
| 700 | 1 | |a Mahmoud, Rehab |e verfasserin |4 aut | |
| 700 | 1 | |a Mahmoud, Hamada M |e verfasserin |4 aut | |
| 700 | 1 | |a Abdelhameed, Reda M |e verfasserin |4 aut | |
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