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dc.contributor.author
El Asmar, Rime
dc.contributor.author
Baalbaki, Abbas
dc.contributor.author
Abou Khalil, Zahraa
dc.contributor.author
Naim, Sahar
dc.contributor.author
Bejjani, Alice
dc.contributor.author
Ghauch, Antoine
dc.date.accessioned
2020-09-09T12:59:14Z
dc.date.available
2020-09-04T20:23:48Z
dc.date.available
2020-09-09T12:59:14Z
dc.date.issued
2021-02-01
dc.identifier.issn
0300-9467
dc.identifier.issn
1385-8947
dc.identifier.issn
1873-3212
dc.identifier.issn
0923-0467
dc.identifier.other
10.1016/j.cej.2020.126701
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/438671
dc.description.abstract
In this work, particular interest is given to synthetized iron-based MOF e.g. MIL-88-A especially for its ability to catalytically activate persulfate (PS) in an advanced oxidation process (AOP) toward the degradation of naproxen (NPX) in solution in batch systems. NPX solution (50 mg L-1) was subjected to specific added amount of MIL-88-A followed by PS spiking after equilibrium was reached. The system was optimized for its recyclability and matrix variations by studying parameters including ionic strength, pH, phosphates and bicarbonates content, oxidant nature (S2O82-- vs H2O2) as well as UVA irradiation. Results showed that (i) MIL-88-A is a good activator of PS where 65–70% degradation of NPX was noticed within 2 h of reaction at room temperature; (ii) MIL-88-A is recyclable up to 4 successive cycles with significant removal extent; (iii) phosphates had no effect on the degradation of NPX however, bicarbonates exhibited a strong inhibition; (iv) PS activation and NPX degradation were optimal at acidic conditions (pH = 4) and (v) PS generated HRs and SRs in the medium and was shown to be superior oxidant over H2O2 in the presence of MIL-88-A. Moreover, experiments under UVA irradiation showed significant improvement of the degradation process of NPX in solution reaching almost complete vanishing after 2 h of reaction. The removal mechanism of NPX was investigated using, for the first time, in addition to traditional analytical techniques e.g. HPLC/DAD/MS-Ion trap, XPS and EPR, the Time of Flight Secondary Ion Mass Spectrometry (TOF-SIMS). TOF-SIMS technique confirmed that adsorption/degradation mechanism of NPX took place at the surface of MIL-88-A making this heterogeneous catalysis AOP-based technology very successful for the elimination of pharmaceutical compounds from water effluents. © 2020 Elsevier B.V.
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.subject
AOPs
en_US
dc.subject
MIL-88-A
en_US
dc.subject
Persulfate
en_US
dc.subject
Adsorption
en_US
dc.subject
Photo-catalysis
en_US
dc.subject
Degradation
en_US
dc.title
Iron-based metal organic framework MIL-88-A for the degradation of naproxen in water through persulfate activation
en_US
dc.type
Journal Article
dc.date.published
2020-08-20
ethz.journal.title
Chemical Engineering Journal
ethz.journal.volume
405
en_US
ethz.journal.abbreviated
Chem. Eng. J.
ethz.pages.start
126701
en_US
ethz.size
18 p.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2020-09-04T20:24:10Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2020-09-09T12:59:26Z
ethz.rosetta.lastUpdated
2020-09-09T12:59:26Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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