Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/106848
DC Field | Value | Language |
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dc.contributor.author | Borowska, Ewa | - |
dc.contributor.author | Gomes, João | - |
dc.contributor.author | Martins, Rui C. | - |
dc.contributor.author | Quinta-Ferreira, R. M. | - |
dc.contributor.author | Horn, Harald | - |
dc.contributor.author | Gmurek, Marta | - |
dc.date.accessioned | 2023-04-27T08:26:39Z | - |
dc.date.available | 2023-04-27T08:26:39Z | - |
dc.date.issued | 2019 | - |
dc.identifier.issn | 2073-4344 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/106848 | - |
dc.description.abstract | Application of solar photocatalysis for water treatment is intensively studied. In this work, we investigated TiO2 modified with platinum (Pt/TiO2) and palladium (Pd/TiO2) using sulfamethoxazole (SMX) as the model contaminant. We considered the following parameters: (i) level of TiO2 modification with Pt/Pd, (ii) initial concentration of photocatalysts, (iii) geographic location where processes were conducted, and (iv) natural water matrix. The catalysts characterized by SEM, EDX, DRS, and XRD techniques showed successful deposition of Pd and Pt atoms on TiO2 surface that enabled light absorption in the visible (Vis) range, and therefore caused e cient SMX removal in all tested conditions. A comparison of the rate constants of SMX degradation in various conditions revealed that modification with Pd gave better results than modification with Pt, which was explained by the better optical properties of Pd/TiO2. The removal of SMX was higher with Pd/TiO2 than with Pt/TiO2, independent of the modification level. In the experiments with the same modification level, similar rate constants were achieved when four times the lower concentration of Pd/TiO2 was used as compared with Pt/TiO2. Formation of four SMX transformation products was confirmed, in which both amine groups are involved in photocatalytic oxidation. No toxic e ect of post-reaction solutions towards Lepidium sativum was observed. | pt |
dc.language.iso | eng | pt |
dc.publisher | MDPI | pt |
dc.relation | This study was funded by the German Technical and Scientific Association for Gas and Water (DVGW). Marta Gmurek gratefully acknowledges German Academic Exchange Service DAAD (Deutscher Akademischer Austauschdienst) for financing the short-term research stay at KIT EBI Water Chemistry and Water Technology. Marta Gmurek acknowledges also financial support from the Mobility Plus Program (Project No. 1650/MOB/V/2017/0) funded by the Polish Ministry of Science and Higher Education (from 2018). João F. Gomes and Rui C. Martins gratefully acknowledge the Fundaçãopara a Ciênciae Tecnologia for the financial support under IFCT2014 Program (No. IF/00215/2014) with financing from the European Social Fund and the Human Potential Operational Programme. | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject | photocatalytic oxidation | pt |
dc.subject | sulfamethoxazole | pt |
dc.subject | titanium dioxide modified with noble metals | pt |
dc.subject | transformation products | pt |
dc.subject | natural sunlight | pt |
dc.title | Solar Photocatalytic Degradation of Sulfamethoxazole by TiO2 Modified with Noble Metals | pt |
dc.type | article | - |
degois.publication.firstPage | 500 | pt |
degois.publication.issue | 6 | pt |
degois.publication.title | Catalysts | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.3390/catal9060500 | pt |
degois.publication.volume | 9 | pt |
dc.date.embargo | 2019-01-01 | * |
uc.date.periodoEmbargo | 0 | pt |
item.fulltext | Com Texto completo | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.author.researchunit | CIEPQPF – Chemical Process Engineering and Forest Products Research Centre | - |
crisitem.author.researchunit | CIEPQPF – Chemical Process Engineering and Forest Products Research Centre | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.orcid | 0000-0002-6087-1575 | - |
crisitem.author.orcid | 0000-0003-1376-0829 | - |
crisitem.author.orcid | 0000-0002-0762-2641 | - |
crisitem.author.orcid | 0000-0002-8017-2317 | - |
Appears in Collections: | I&D CERES - Artigos em Revistas Internacionais |
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Solar-photocatalytic-degradation-of-sulfamethoxazole-by-tio2-modified-with-noble-metalsCatalysts.pdf | 2.55 MB | Adobe PDF | View/Open |
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