Application of biochar prepared from wheat bran as the binding phase in diffusive gradient in thin films technique for determination of mercury in natural waters

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dc.contributor.authorKřikala, Jakubcs
dc.contributor.authorDiviš, Pavelcs
dc.contributor.authorPořízka, Jaromírcs
dc.contributor.authorDuborská, Evacs
dc.contributor.authorGajdušek, Martincs
dc.coverage.issue14cs
dc.coverage.volume78cs
dc.date.accessioned2025-04-04T11:56:19Z
dc.date.available2025-04-04T11:56:19Z
dc.date.issued2024-09-11cs
dc.description.abstractA novel binding gel for the DGT technique, containing biochar produced through the pyrolysis of wheat bran, was developed. The results of this study indicate that wheat bran biochar (WBBC) is a porous material with a surface area of 25 m2/g. The primary functional group on the surface of WBBC was identified as a carbonyl group, although some hydroxyl and imino groups were also detected. Furthermore, the findings demonstrate that the accumulation of Hg on WBBC was significantly influenced by an increase in ionic strength, particularly in NaCl solution, owing to Hg's high affinity for chloride ions. The performance of the DGT with WBBC binding gel was also affected by solution pH, with the optimal pH for WBBC application falling within the range of 3-7. The diffusion coefficient of Hg, depending on the matrix environment, varied between 5.44 and 6.99 x 10-6 cm2/s. When applying the newly designed DGT technique to spiked samples of river water, an R value of 0.68 was achieved. The results of this work proved that modified DGT technique allows for a cost-effective analysis of Hg in natural waters with lower salinity, while retaining the fundamental properties of the binding gel incorporating a particulate adsorbent with anchored functional groups.en
dc.formattextcs
dc.format.extent7815-7826cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCHEMICAL PAPERS. 2024, vol. 78, issue 14, p. 7815-7826.en
dc.identifier.doi10.1007/s11696-024-03635-8cs
dc.identifier.issn2585-7290cs
dc.identifier.orcid0000-0002-4776-9517cs
dc.identifier.orcid0000-0001-6809-0506cs
dc.identifier.orcid0000-0002-2742-8053cs
dc.identifier.other189769cs
dc.identifier.researcheridA-6972-2016cs
dc.identifier.researcheridAAA-9218-2019cs
dc.identifier.scopus12038939300cs
dc.identifier.scopus56337743000cs
dc.identifier.urihttps://hdl.handle.net/11012/250723
dc.language.isoencs
dc.publisherSPRINGER INT PUBL AGcs
dc.relation.ispartofCHEMICAL PAPERScs
dc.relation.urihttps://link.springer.com/article/10.1007/s11696-024-03635-8cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2585-7290/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectBiocharen
dc.subjectMercuryen
dc.subjectDiffusionen
dc.subjectAdsorptionen
dc.subjectPassive samplingen
dc.titleApplication of biochar prepared from wheat bran as the binding phase in diffusive gradient in thin films technique for determination of mercury in natural watersen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-189769en
sync.item.dbtypeVAVen
sync.item.insts2025.04.04 13:56:19en
sync.item.modts2025.03.31 10:32:04en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie potravin a biotechnologiícs
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