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Synthesis of titanate nanofibers co-sensitized with ZnS and Bi2S3 nanocrystallites and their application on pollutants removal

2015-12Journal article Restricted access
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dc.contributor.authorEntradas, T.J.
dc.contributor.authorCabrita, J. F.
dc.contributor.authorBarrocas, B.
dc.contributor.authorNunes, M. R.
dc.contributor.authorSilvestre, António Jorge
dc.contributor.authorMonteiro, O. C.
dc.date.accessioned2016-03-18T16:00:38Z
dc.date.available2016-03-18T16:00:38Z
dc.date.issued2015-12
dc.description.abstractThe synthesis of nanocomposite materials combining titanate nanofibers (TNF) with nanocrystalline ZnS and Bi2S3 semiconductors is described in this work. The TNF were produced via hydrothermal synthesis and sensitized with the semiconductor nanoparticles, through a single-source precursor decomposition method. ZnS and Bi2S3 nanoparticles were successfully grown onto the TNF's surface and Bi2S3-ZnS/TNF nanocomposite materials with different layouts. The samples' photocatalytic performance was first evaluated through the production of the hydroxyl radical using terephthalic acid as probe molecule. All the tested samples show photocatalytic ability for the production of this oxidizing species. Afterwards, the samples were investigated for the removal of methylene blue. The nanocomposite materials with best adsorption ability were the ZnS/TNF and Bi2S3ZnS/TNF. The dye removal was systematically studied, and the most promising results were obtained considering a sequential combination of an adsorption-photocatalytic degradation process using the Bi2S3ZnS/TNF powder as a highly adsorbent and photocatalyst material. (C) 2015 Elsevier Ltd. All rights reserved.pt_PT
dc.identifier.citationENTRADAS, T.J.; [et al.] - Synthesis of titanate nanofibers co-sensitized with ZnS and Bi2S3 nanocrystallites and their application on pollutants removal. Materials Research Bulletin. ISSN 0025-5408. Vol. 72 (2015), pp. 20-28pt_PT
dc.identifier.doi10.1016/j.materresbull.2015.07.008pt_PT
dc.identifier.issn0025-5408
dc.identifier.issn1873-4227
dc.identifier.urihttp://hdl.handle.net/10400.21/5920
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDpt_PT
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0025540815300325pt_PT
dc.subjectBi2S3–ZnS/TNF nanocompositespt_PT
dc.subjectPhotosensitizationpt_PT
dc.subjectHydroxyl radicalpt_PT
dc.subjectPollutants removalpt_PT
dc.titleSynthesis of titanate nanofibers co-sensitized with ZnS and Bi2S3 nanocrystallites and their application on pollutants removalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage28pt_PT
oaire.citation.startPage20pt_PT
oaire.citation.volume72pt_PT
person.familyNameSilvestre
person.givenNameAntónio Jorge
person.identifier.orcid0000-0001-6517-6275
person.identifier.scopus-author-id25224208600
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationda27d795-d2eb-4f8c-bfa5-7053ef20f339
relation.isAuthorOfPublication.latestForDiscoveryda27d795-d2eb-4f8c-bfa5-7053ef20f339

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