Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/34396
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dc.contributor.authorRodrigues, João M. M.pt_PT
dc.contributor.authorFarinha, Andreia S. F.pt_PT
dc.contributor.authorZhi Linpt_PT
dc.contributor.authorCavaleiro, José A. S.pt_PT
dc.contributor.authorTomé, Augusto C.pt_PT
dc.contributor.authorTomé, João P. C.pt_PT
dc.date.accessioned2022-08-03T15:54:01Z-
dc.date.available2022-08-03T15:54:01Z-
dc.date.issued2021-03-01-
dc.identifier.urihttp://hdl.handle.net/10773/34396-
dc.description.abstractAnionic species are one of the most common pollutants in residual and freshwaters. The presence of anthropogenic anions in water drastically increases the toxicity to living beings. Here, we report the preparation of a new optical active material based on tri(tosylamino)phthalocyanines grafted to ferromagnetic silica nanoparticles for anion detection and removal. The new unsymmetrical phthalocyanines (Pcs) proved to be excellent chemosensors for several anions (AcO-, Br-, Cl-, CN-, F-, H2PO4-, HSO4-, NO2-, NO3-, and OH-) in dimethyl sulfoxide (DMSO). Furthermore, the Pcs were grafted onto magnetic nanoparticles. The resulting novel hybrid material showed selectivity and sensitivity towards CN-, F-, and OH- anions in DMSO with limit of detection (LoD) of ≈4.0 µM. In water, the new hybrid chemosensor demonstrated selectivity and sensitivity for CN- and OH- anions with LoD of ≈0.2 µM. The new hybrids are easily recovered using a magnet, allowing recyclability and reusability, after acidic treatment, without losing the sensing proprieties.pt_PT
dc.language.isoengpt_PT
dc.publisherMDPIpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F00062%2F2019/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00100%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FCTM%2F101538%2F2008/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FQEQ-QOR%2F6160%2F2014/PTpt_PT
dc.rightsopenAccesspt_PT
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAnionspt_PT
dc.subjectAnion bindingpt_PT
dc.subjectChemosensorpt_PT
dc.subjectMagnetic nanoparticlespt_PT
dc.subjectPhthalocyaninespt_PT
dc.titlePhthalocyanine-functionalized magnetic silica nanoparticles as anion chemosensorspt_PT
dc.typearticlept_PT
dc.description.versionpublishedpt_PT
dc.peerreviewedyespt_PT
degois.publication.issue5pt_PT
degois.publication.titleSensorspt_PT
degois.publication.volume21pt_PT
dc.identifier.doi10.3390/s21051632pt_PT
dc.identifier.essn424-8220pt_PT
dc.identifier.articlenumber1632pt_PT
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