Zobrazit minimální záznam
dc.contributor.author |
Hegedüs, Michal
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dc.contributor.author |
Gaborova, Katarina
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dc.contributor.author |
Weidlich, Tomáš
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dc.contributor.author |
Kalivoda, Pavel
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dc.contributor.author |
Briancin, Jaroslav
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dc.contributor.author |
Tothova, Erika
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dc.date.accessioned |
2022-06-03T12:33:14Z |
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dc.date.available |
2022-06-03T12:33:14Z |
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dc.date.issued |
2021 |
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dc.identifier.issn |
2213-3437 |
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dc.identifier.uri |
https://hdl.handle.net/10195/79358 |
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dc.description.abstract |
The present study reports on the degradation of chlorinated benzoic acids (CBAs), commonly present in the environment as pollutants, by a hydrodehalogenation reaction utilizing the Raney Al-Ni alloy (50:50 wt% Al:Ni). The hydrodehalogenation reaction using the Raney Al-Ni alloy has already been proven as an efficient tool for fast and efficient degradation of halogenated persistent organic pollutants (POPs). Herein, the nano-structured Raney Al-Ni alloy was prepared by an alternative mechano-thermal approach starting from pure elements in a form of powders. The prepared alloy was characterized by X-ray diffractometry, scanning electron microscopy, particle size distribution, and active surface area analyses. The properties of the material were compared with a commercial sample of the same alloy prepared by the atomization process. The activity of the synthesized alloy was evaluated as removal efficiency and a rate of dehalogenation of three different CBAs - 2-chlorobenzoic acid, 2,6-dichlorobenzoic acid, and 2,3,6-trichlorobenzoic acid (trysben); used in the past as an herbicide. Dehalogenation of all three tested CBAs yielded benzoic acid as the only product and followed the first-order reaction kinetics. Compared to the commercially available alloy, enhanced kinetics of CBAs removal was achieved, owing to the solid-state properties of the mechano-thermally prepared alloy. |
eng |
dc.format |
p. 105764 |
eng |
dc.language.iso |
eng |
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dc.publisher |
ELSEVIER SCI LTD |
eng |
dc.relation.ispartof |
Journal of Environmental Chemical Engineering, volume 9, issue: 4 |
eng |
dc.rights |
Článek ve verzi „published“ je přístupný pouze v rámci univerzity. |
cze |
dc.subject |
hydrodehalogenation reaction |
eng |
dc.subject |
chlorobenzoic acids |
eng |
dc.subject |
herbicides |
eng |
dc.subject |
mechanochemistry |
eng |
dc.subject |
Al-Ni alloy |
eng |
dc.subject |
Raney nickel |
eng |
dc.subject |
hydrodehalogenační reakce |
cze |
dc.subject |
chlorbenzoové kyseliny |
cze |
dc.subject |
herbicidy |
cze |
dc.subject |
mechanochemie |
cze |
dc.subject |
Al-Ni slitina |
cze |
dc.subject |
Raney nikl |
cze |
dc.title |
Rapid hydrodehalogenation of chlorinated benzoic acids using mechano-thermally prepared Raney alloy with enhanced kinetics |
eng |
dc.title.alternative |
Rychlá hydrodehalogenace chlorovaných benzoových kyselin s použitím mechano-termicky připravené Raneyovy slitiny zahrnující rychlejší průběh hydrodehalogenačního procesu |
cze |
dc.type |
article |
eng |
dc.description.abstract-translated |
Práce srovnává účinek komerční Al-Ni slitiny s materiálem připraveným mechanotermickou cestou z výchozích práškových kovů. Připravený materiál bych charakterizován s pomocí XRD, velikosti částic a specifického povrchu a otestován. |
cze |
dc.peerreviewed |
yes |
eng |
dc.publicationstatus |
published version |
eng |
dc.identifier.doi |
10.1016/j.jece.2021.105764 |
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dc.relation.publisherversion |
https://www.sciencedirect.com/science/article/pii/S2213343721007417 |
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dc.project.ID |
TP01010012/Rozvoj systému podpory projektů proof-of-concept na Univerzitě Pardubice |
cze |
dc.identifier.wos |
000670362000005 |
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dc.identifier.scopus |
2-s2.0-85107536962 |
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dc.identifier.obd |
39886381 |
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