dc.identifier.uri |
http://dx.doi.org/10.15488/4839 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/4882 |
|
dc.contributor.author |
El-Hosainy, Hamza M.
|
|
dc.contributor.author |
El-Sheikh, Said M.
|
|
dc.contributor.author |
Ismail, Adel A.
|
|
dc.contributor.author |
Hakki, Amer
|
|
dc.contributor.author |
Dillert, Ralf
|
|
dc.contributor.author |
Killa, Hamada M.
|
|
dc.contributor.author |
Ibrahim, Ibrahim A.
|
|
dc.contributor.author |
Bahnemann, Detlef W.
|
|
dc.contributor.author |
Detelf W.
|
|
dc.date.accessioned |
2019-05-21T10:57:56Z |
|
dc.date.available |
2019-05-21T10:57:56Z |
|
dc.date.issued |
2018 |
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dc.identifier.citation |
El-Hosainy, H.M. et al.: Highly Selective Photocatalytic Reduction of o-Dinitrobenzene to o-Phenylenediamine over Non-Metal-Doped TiO2 under Simulated Solar Light Irradiation. In: Catalysts 8 (2018), Nr. 12, 641. DOI: https://doi.org/10.3390/catal8120641 |
|
dc.description.abstract |
Photocatalytic reduction and hydrogenation reaction of o-dinitrobenzene in the presence of oxalic acid over anatase-brookite biphasic TiO2 and non-metal-doped anatase-brookite biphasic TiO2 photocatalysts under solar simulated light was investigated. Compared with commercial P25 TiO2, the prepared un-doped and doped anatase-brookite biphasic TiO2 exhibited a high selectivity towards the formation of o-nitroaniline (85.5%) and o-phenylenediamine ~97%, respectively. The doped anatase-brookite biphasic TiO2 has promoted photocatalytic reduction of the two-nitro groups of o-dinitrobenzene to the corresponding o-phenylenediamine with very high yield ~97%. Electron paramagnetic resonance analysis, Transient Absorption Spectroscopy (TAS) and Photoluminescence analysis (PL) were performed to determine the distribution of defects and the fluorescence lifetime of the charge carriers for un-doped and doped photocatalysts. The superiority of the doped TiO2 photocatalysts is accredited to the creation of new dopants (C, N, and S) as hole traps, the formation of long-lived Ti3+ defects which leads to an increase in the fluorescence lifetime of the formed charge carriers. The schematic diagram of the photocatalytic reduction of o-dinitrobenzene using the doped TiO2 under solar light was also illustrated in detail. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
Basel : Molecular Diversity Preservation International (MDPI) |
|
dc.relation.ispartofseries |
Catalysts 8 (2018), Nr. 12 |
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dc.rights |
CC BY 4.0 Unported |
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dc.rights.uri |
https://creativecommons.org/licenses/by/4.0/ |
|
dc.subject |
photocatalysis |
eng |
dc.subject |
non-metal- doped TiO2 |
eng |
dc.subject |
nitroaromatic compounds |
eng |
dc.subject |
selectivity |
eng |
dc.subject.ddc |
540 | Chemie
|
ger |
dc.title |
Highly Selective Photocatalytic Reduction of o-Dinitrobenzene to o-Phenylenediamine over Non-Metal-Doped TiO2 under Simulated Solar Light Irradiation. |
|
dc.type |
Article |
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dc.type |
Text |
|
dc.relation.essn |
2073-4344 |
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dc.relation.doi |
https://doi.org/10.3390/catal8120641 |
|
dc.bibliographicCitation.issue |
12 |
|
dc.bibliographicCitation.volume |
8 |
|
dc.bibliographicCitation.firstPage |
641 |
|
dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
|