Development of a TiO 2 nanotube photoanode decorated with MIL-53(Fe) for the photoelectrochemical degradation of 2,4-dimethylaniline
Metal-organic frameworks (MOFs) based on Fe exhibit great potential as highly effective photocatalysts for water treatment applications. TiO2 nanotube photoanodes decorated with 170–370 μg cm−2 of MIL-53(Fe) and Fe-MOF (i.e., melamine-modified MIL-53(Fe)) were synthesized and evaluated in the photoa...
| Autores: | , , , , , , , , , , , , , , |
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| Tipo de documento: | artigo |
| Estado: | Versión aceptada para publicación |
| Data de publicação: | 2024 |
| País: | España |
| Recursos: | Universidad de Barcelona |
| Repositório: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/208850 |
| Acesso em linha: | https://hdl.handle.net/2445/208850 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Fotoelectroquímica Diòxid de titani Nanotubs Photoelectrochemistry Titanium dioxide Nanotubes |
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Development of a TiO 2 nanotube photoanode decorated with MIL-53(Fe) for the photoelectrochemical degradation of 2,4-dimethylanilineDa Silva, T.F.Cavalheri, P.S.Cardoso, J.C.Nazario, C.E.D.Jorge, J.Martines, M.A.U.Ravaglia, L.M.Alcantara, G.B.Casagrande, G.A.Caires, A.R.L.Cavalcante, R.P.de Oliveira, S.C.Gozzi, F.Sirés Sadornil, IgnacioMachulek Jr., A.FotoelectroquímicaDiòxid de titaniNanotubsPhotoelectrochemistryTitanium dioxideNanotubesMetal-organic frameworks (MOFs) based on Fe exhibit great potential as highly effective photocatalysts for water treatment applications. TiO2 nanotube photoanodes decorated with 170–370 μg cm−2 of MIL-53(Fe) and Fe-MOF (i.e., melamine-modified MIL-53(Fe)) were synthesized and evaluated in the photoassisted electrochemical degradation of 2,4-dimethylaniline (2,4-DMA) under visible light irradiation. The morphological, optical, and electrochemical properties of the photoanodes were evaluated by SEM, TEM, FTIR, XPS, BET, PL, XRD, DRS, zeta potential, linear voltammetry, EIS, and Mott-Schottky technique, respectively. The absorption band of the carboxyl groups coordinated to the iron centers is observed by FTIR at 1550 cm−1, whereas a peak at 538 cm−1 is related the formation of metal-oxo bonds between the carboxylic group of terephthalic acid and Fe3+. The modification of MIL-53(Fe) through the insertion of melamine led to a reduction in the formed nanoparticles. The photoelectrochemical activity of MIL-53(Fe) at pH 3.0 was optimized using a central composite design (CCD) experimental plan, with H2O2 concentration, applied anode potential (Ean) and reaction time as variables under study. Upon addition of 10 mg L−1 H2O2, a degradation of 74.4% of 2,4-DMA was achieved at Ean = 1.0 V after 110 min, outperforming the 57% reached using an unmodified TiO2 nanotube photoanode. Further modification of the MIL-53(Fe) with melamine allowed obtaining an almost total degradation. A plausible degradation pathway for 2,4-DMA is discussed from NMR and HPLC-MS/MS results. This work demonstrates the promising photoelectrocatalytic activity of TiO2 photoanodes decorated with Fe-based MOFs.Elsevier B.V.2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/208850Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: https://doi.org/10.1016/j.cattod.2024.114579Catalysis Today, 2024, vol. 431, p. 114579https://doi.org/10.1016/j.cattod.2024.114579cc-by-nc-nd (c) Elsevier B.V., 2024http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2088502026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
Development of a TiO 2 nanotube photoanode decorated with MIL-53(Fe) for the photoelectrochemical degradation of 2,4-dimethylaniline |
| title |
Development of a TiO 2 nanotube photoanode decorated with MIL-53(Fe) for the photoelectrochemical degradation of 2,4-dimethylaniline |
| spellingShingle |
Development of a TiO 2 nanotube photoanode decorated with MIL-53(Fe) for the photoelectrochemical degradation of 2,4-dimethylaniline Da Silva, T.F. Fotoelectroquímica Diòxid de titani Nanotubs Photoelectrochemistry Titanium dioxide Nanotubes |
| title_short |
Development of a TiO 2 nanotube photoanode decorated with MIL-53(Fe) for the photoelectrochemical degradation of 2,4-dimethylaniline |
| title_full |
Development of a TiO 2 nanotube photoanode decorated with MIL-53(Fe) for the photoelectrochemical degradation of 2,4-dimethylaniline |
| title_fullStr |
Development of a TiO 2 nanotube photoanode decorated with MIL-53(Fe) for the photoelectrochemical degradation of 2,4-dimethylaniline |
| title_full_unstemmed |
Development of a TiO 2 nanotube photoanode decorated with MIL-53(Fe) for the photoelectrochemical degradation of 2,4-dimethylaniline |
| title_sort |
Development of a TiO 2 nanotube photoanode decorated with MIL-53(Fe) for the photoelectrochemical degradation of 2,4-dimethylaniline |
| dc.creator.none.fl_str_mv |
Da Silva, T.F. Cavalheri, P.S. Cardoso, J.C. Nazario, C.E.D. Jorge, J. Martines, M.A.U. Ravaglia, L.M. Alcantara, G.B. Casagrande, G.A. Caires, A.R.L. Cavalcante, R.P. de Oliveira, S.C. Gozzi, F. Sirés Sadornil, Ignacio Machulek Jr., A. |
| author |
Da Silva, T.F. |
| author_facet |
Da Silva, T.F. Cavalheri, P.S. Cardoso, J.C. Nazario, C.E.D. Jorge, J. Martines, M.A.U. Ravaglia, L.M. Alcantara, G.B. Casagrande, G.A. Caires, A.R.L. Cavalcante, R.P. de Oliveira, S.C. Gozzi, F. Sirés Sadornil, Ignacio Machulek Jr., A. |
| author_role |
author |
| author2 |
Cavalheri, P.S. Cardoso, J.C. Nazario, C.E.D. Jorge, J. Martines, M.A.U. Ravaglia, L.M. Alcantara, G.B. Casagrande, G.A. Caires, A.R.L. Cavalcante, R.P. de Oliveira, S.C. Gozzi, F. Sirés Sadornil, Ignacio Machulek Jr., A. |
| author2_role |
author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Fotoelectroquímica Diòxid de titani Nanotubs Photoelectrochemistry Titanium dioxide Nanotubes |
| topic |
Fotoelectroquímica Diòxid de titani Nanotubs Photoelectrochemistry Titanium dioxide Nanotubes |
| description |
Metal-organic frameworks (MOFs) based on Fe exhibit great potential as highly effective photocatalysts for water treatment applications. TiO2 nanotube photoanodes decorated with 170–370 μg cm−2 of MIL-53(Fe) and Fe-MOF (i.e., melamine-modified MIL-53(Fe)) were synthesized and evaluated in the photoassisted electrochemical degradation of 2,4-dimethylaniline (2,4-DMA) under visible light irradiation. The morphological, optical, and electrochemical properties of the photoanodes were evaluated by SEM, TEM, FTIR, XPS, BET, PL, XRD, DRS, zeta potential, linear voltammetry, EIS, and Mott-Schottky technique, respectively. The absorption band of the carboxyl groups coordinated to the iron centers is observed by FTIR at 1550 cm−1, whereas a peak at 538 cm−1 is related the formation of metal-oxo bonds between the carboxylic group of terephthalic acid and Fe3+. The modification of MIL-53(Fe) through the insertion of melamine led to a reduction in the formed nanoparticles. The photoelectrochemical activity of MIL-53(Fe) at pH 3.0 was optimized using a central composite design (CCD) experimental plan, with H2O2 concentration, applied anode potential (Ean) and reaction time as variables under study. Upon addition of 10 mg L−1 H2O2, a degradation of 74.4% of 2,4-DMA was achieved at Ean = 1.0 V after 110 min, outperforming the 57% reached using an unmodified TiO2 nanotube photoanode. Further modification of the MIL-53(Fe) with melamine allowed obtaining an almost total degradation. A plausible degradation pathway for 2,4-DMA is discussed from NMR and HPLC-MS/MS results. This work demonstrates the promising photoelectrocatalytic activity of TiO2 photoanodes decorated with Fe-based MOFs. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion |
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article |
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acceptedVersion |
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https://hdl.handle.net/2445/208850 |
| url |
https://hdl.handle.net/2445/208850 |
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Inglés |
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Inglés |
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Versió postprint del document publicat a: https://doi.org/10.1016/j.cattod.2024.114579 Catalysis Today, 2024, vol. 431, p. 114579 https://doi.org/10.1016/j.cattod.2024.114579 |
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cc-by-nc-nd (c) Elsevier B.V., 2024 http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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cc-by-nc-nd (c) Elsevier B.V., 2024 http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
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application/pdf |
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Elsevier B.V. |
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Elsevier B.V. |
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Articles publicats en revistes (Ciència dels Materials i Química Física) reponame:Dipòsit Digital de la UB instname:Universidad de Barcelona |
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Universidad de Barcelona |
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