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http://hdl.handle.net/1942/39168
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DC Field | Value | Language |
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dc.contributor.author | PIRAS, Alessandra | - |
dc.contributor.author | Olla, Chiara | - |
dc.contributor.author | REEKMANS, Gunter | - |
dc.contributor.author | KELCHTERMANS, An-Sofie | - |
dc.contributor.author | DE SLOOVERE, Dries | - |
dc.contributor.author | ELEN, Ken | - |
dc.contributor.author | Carbonaro, Carlo | - |
dc.contributor.author | Fusaro, Luca | - |
dc.contributor.author | ADRIAENSENS, Peter | - |
dc.contributor.author | HARDY, An | - |
dc.contributor.author | Aprile, Carmela | - |
dc.contributor.author | VAN BAEL, Marlies | - |
dc.date.accessioned | 2023-01-05T14:19:01Z | - |
dc.date.available | 2023-01-05T14:19:01Z | - |
dc.date.issued | 2022 | - |
dc.date.submitted | 2022-12-16T12:37:29Z | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 23 (24) (Art N° 15459) | - |
dc.identifier.issn | 1422-0067 | - |
dc.identifier.uri | http://hdl.handle.net/1942/39168 | - |
dc.description.abstract | Quasi-spherical undoped ZnO and Al-doped ZnO nanoparticles with different aluminum content, ranging from 0.5 to 5 at% of Al with respect to Zn, were synthesized. These nanoparticles were evaluated as photocatalysts in the photodegradation of the Rhodamine B (RhB) dye aqueous solution under UV-visible light irradiation. The undoped ZnO nanopowder annealed at 400 °C resulted in the highest degradation efficiency of ca. 81% after 4 h under green light irradiation (525 nm), in the presence of 5 mg of catalyst. The samples were characterized using ICP-OES, PXRD, TEM, FT-IR, 27Al-MAS NMR, UV-Vis and steady-state PL. The effect of Al-doping on the phase structure, shape and particle size was also investigated. Additional information arose from the annealed nanomaterials under dynamic N2 at different temperatures (400 and 550 °C). The position of aluminum in the ZnO lattice was identified by means of 27Al-MAS NMR. FT-IR gave further information about the type of tetrahedral sites occupied by aluminum. Photoluminescence showed that the insertion of dopant increases the oxygen vacancies reducing the peroxide-like species responsible for photocatalysis. The annealing temperature helps increase the number of red-emitting centers up to 400 °C, while at 550 °C, the photocatalytic performance drops due to the aggregation tendency. | - |
dc.description.sponsorship | Funding: This research was co-funded by Hasselt University and Namur University through the BOF programme (Project R-9087) and the Fonds spécial de recherche. This work is also supported by the Research Foundation Flanders (FWO) and Hasselt University via the Hercules project AUHL/15/2-GOH3816N. This research used resources of the PC2 and the MORPH-IM platforms located at the University of Namur Acknowledgments: The authors acknowledge C. Charlier for his assistance with TEM and N. Billiet with N. Debusschere for the PXRD measurements. | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.rights | 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | - |
dc.subject.other | nanomaterials | - |
dc.subject.other | ZnO | - |
dc.subject.other | Al-doped ZnO | - |
dc.subject.other | Rhodamine B | - |
dc.subject.other | photocatalysis | - |
dc.subject.other | green light-irradiation | - |
dc.subject.other | photoluminescence | - |
dc.subject.other | solid-state 27Al-NMR | - |
dc.title | Photocatalytic Performance of Undoped and Al-Doped ZnO Nanoparticles in the Degradation of Rhodamine B under UV-Visible Light:The Role of Defects and Morphology | - |
dc.type | Journal Contribution | - |
dc.identifier.issue | 24 | - |
dc.identifier.volume | 23 | - |
local.bibliographicCitation.jcat | A1 | - |
local.publisher.place | ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
local.bibliographicCitation.artnr | 15459 | - |
dc.identifier.doi | 10.3390/ijms232415459 | - |
dc.identifier.isi | 000901015600001 | - |
dc.identifier.eissn | 1422-0067 | - |
local.provider.type | - | |
local.uhasselt.international | yes | - |
item.contributor | PIRAS, Alessandra | - |
item.contributor | Olla, Chiara | - |
item.contributor | REEKMANS, Gunter | - |
item.contributor | KELCHTERMANS, An-Sofie | - |
item.contributor | DE SLOOVERE, Dries | - |
item.contributor | ELEN, Ken | - |
item.contributor | Carbonaro, Carlo | - |
item.contributor | Fusaro, Luca | - |
item.contributor | ADRIAENSENS, Peter | - |
item.contributor | HARDY, An | - |
item.contributor | Aprile, Carmela | - |
item.contributor | VAN BAEL, Marlies | - |
item.fulltext | With Fulltext | - |
item.fullcitation | PIRAS, Alessandra; Olla, Chiara; REEKMANS, Gunter; KELCHTERMANS, An-Sofie; DE SLOOVERE, Dries; ELEN, Ken; Carbonaro, Carlo; Fusaro, Luca; ADRIAENSENS, Peter; HARDY, An; Aprile, Carmela & VAN BAEL, Marlies (2022) Photocatalytic Performance of Undoped and Al-Doped ZnO Nanoparticles in the Degradation of Rhodamine B under UV-Visible Light:The Role of Defects and Morphology. In: INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 23 (24) (Art N° 15459). | - |
item.accessRights | Open Access | - |
crisitem.journal.issn | 1661-6596 | - |
crisitem.journal.eissn | 1422-0067 | - |
Appears in Collections: | Research publications |
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File | Description | Size | Format | |
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ijms-23-15459.pdf | 2.73 MB | Adobe PDF | View/Open |
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