Toward enhanced catalytic activity of magnetic nanoparticles integrated into 3D reduced graphene oxide for heterogeneous Fenton organic dye degradation
dc.contributor.author | Sadegh, Fatemeh | |
dc.contributor.author | Politakos, Nikolaos | |
dc.contributor.author | González de San Román, Estibaliz ![]() | |
dc.contributor.author | Sanz Iturralde, Oihane ![]() | |
dc.contributor.author | Modarresi Alam, Ali Reza | |
dc.contributor.author | Tomovska, Radmila | |
dc.date.accessioned | 2021-11-09T11:30:26Z | |
dc.date.available | 2021-11-09T11:30:26Z | |
dc.date.issued | 2021-09-15 | |
dc.identifier.citation | Scientific Reports 11 : (2021) Article ID 18343 | es_ES |
dc.identifier.issn | 2045-2322 | |
dc.identifier.uri | http://hdl.handle.net/10810/53713 | |
dc.description.abstract | Composite Fenton nanocatalyst was prepared by water-based in situ creation of Fe3O4 nanoparticles integrated within the self-assembly 3D reduced graphene oxide (rGO) aerogel. The hybrid applied for the degradation of Acid Green 25 (AG-25) organic dye in an aqueous solution, in the presence of H2O2. By investigating the conditions that maximize the dye adsorption by the 3D composite, it was found that the pH of the solution should be adjusted between the pKa of the functional groups present on the rGO surface (carboxylic acid) and that of the dye (sulfonic acid) to promote electrostatic interactions dye-3D structure. Performed under these conditions, Fenton degradation of AG-25 in presence of H2O2 was completed in less than 30 min, including all the intermediate products, as demonstrated by MALDI-TOF-MS analysis of the aqueous solution after discoloration. Moreover, this was achieved in a solution with as high a dye concentration of 0.5 mg/mL, with only 10 mg of 3D composite catalyst, at room temperature and without additional energy input. The high performance was attributed to the creation of charge-transfer complex between rGO and Fe3O4 nanoparticles throughout covalent bond C-O-Fe, the formation of which was promoted by the in situ synthesis procedure. For the first time, up to the authors' knowledge, AG-25 degradation mechanism was proposed. | es_ES |
dc.description.sponsorship | The authors gratefully acknowledge the financial support of the Basque Government (GV IT999-16 and GV IT1069-16). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Nature Research | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | aqueous-solution | es_ES |
dc.subject | nanocomposite hydrogels | es_ES |
dc.subject | carbon nanotubes | es_ES |
dc.subject | adsorption | es_ES |
dc.subject | removal | es_ES |
dc.subject | adsorbents | es_ES |
dc.subject | performance | es_ES |
dc.subject | oxidation | es_ES |
dc.subject | hybrid | es_ES |
dc.subject | composites | es_ES |
dc.title | Toward enhanced catalytic activity of magnetic nanoparticles integrated into 3D reduced graphene oxide for heterogeneous Fenton organic dye degradation | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://www.nature.com/articles/s41598-021-97712-7#Ack1 | es_ES |
dc.identifier.doi | 10.1038/s41598-021-97712-7 | |
dc.departamentoes | Química aplicada | es_ES |
dc.departamentoeu | Kimika aplikatua | es_ES |
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Except where otherwise noted, this item's license is described as Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.