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https://hdl.handle.net/1822/71281
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Campo DC | Valor | Idioma |
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dc.contributor.author | Silva, A. R. | por |
dc.contributor.author | Soares, O. Salomé G. P. | por |
dc.contributor.author | Pereira, M. Fernando R. | por |
dc.contributor.author | Alves, M. M. | por |
dc.contributor.author | Pereira, Luciana | por |
dc.date.accessioned | 2021-04-05T22:49:41Z | - |
dc.date.available | 2021-04-05T22:49:41Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Silva, A. R.; Soares, O. Salomé G. P.; Pereira, M. Fernando R.; Alves, M. Madalena; Pereira, Luciana, Tailoring carbon nanotubes to enhance their efficiency as electron shuttle on the biological removal of acid orange 10 under anaerobic conditions. Nanomaterials, 10(12), 2496, 2020 | por |
dc.identifier.issn | 20794991 | por |
dc.identifier.uri | https://hdl.handle.net/1822/71281 | - |
dc.description.abstract | Anaerobic treatments have been described for the biodegradation of pollutants. However, the reactions proceed slowly due to the recalcitrant nature of these compounds. Carbon nanomaterials (CNM) intermediate in, and favor, the electron transfer, accelerating the anaerobic reduction of pollutants, which act as final electron acceptors. In the present work, different carbon nanotubes (CNT) with modified surface chemistry, namely CNT oxidized with HNO3 (CNT_HNO3) and CNT doped with nitrogen in a ball milling process (CNT_N_MB) were prepared using commercial CNT as a starting material. The new CNM were tested as redox mediators (RM), 0.1 g L−1, in the biological reduction of the azo dye, Acid Orange 10 (AO10), with an anaerobic granular sludge, over 48 h of reaction. Methane production was also assessed to verify the microorganism’s activity and the CNM’s effect on the methanogenic activity. An improvement in the biological removal of AO10 occurred with all CNM (above 90%), when compared with the control without CNM (only 32.4 ± 0.3%). The best results were obtained with CNT_N_MB, which achieved 98.2 ± 0.1% biological AO10 removal, and an 11-fold reduction rate increase. In order to confer magnetic properties to the CNM, tailored CNT were impregnated with 2% of iron-samples: CNT | por |
dc.description.sponsorship | This study was supported by the Portuguese Foundation for Science and Technology (FCT) under the scope of the strategic funding of UID/BIO/04469/2019 unit and BioTecNorte operation (NORTE‐01‐0145‐ FEDER‐000004) funded by the European Regional Development Fund under the scope of Norte2020 ‐ Programa Operacional Regional do Norte, as well as FCT/MCTES trough national funds (PIDDAC) and Base Funding – UIDB/50020/20 of the Associate Laboratory LSRE‐LCM – funded by national funds rough FCT/MCTES (PIDDAC). Ana Rita Silva holds a Grant from FCT, reference SFRH/BD/131905/2017. Salomé. G.P. Soares acknowledges FCT funding under the Scientific Employment Stimulus ‐ Institutional Call CEECINST/00049/2018. | por |
dc.language.iso | eng | por |
dc.publisher | MDPI | por |
dc.relation | UID/BIO/04469/2019 | por |
dc.relation | UIDB/50020/20 | por |
dc.relation | SFRH/BD/131905/2017 | por |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | biological reduction | por |
dc.subject | acid orange 10 | por |
dc.subject | tailored carbon nanotubes | por |
dc.subject | toxicity | por |
dc.subject | by-products toxicity | por |
dc.title | Tailoring carbon nanotubes to enhance their efficiency as electron shuttle on the biological removal of acid orange 10 under anaerobic conditions | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.mdpi.com/2079-4991/10/12/2496 | por |
dc.comments | CEB54051 | por |
oaire.citationStartPage | 2496 | por |
oaire.citationEndPage | 19 | por |
oaire.citationIssue | 12 | por |
oaire.citationVolume | 10 | por |
dc.date.updated | 2021-02-15T17:26:56Z | - |
dc.identifier.doi | 10.3390/nano10122496 | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | - |
dc.subject.wos | Science & Technology | por |
sdum.journal | Nanomaterials | por |
oaire.version | VoR | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_54051_1.pdf | 937,99 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons