Lignitic humic acids as environmental friendly adsorbent for heavy metals

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dc.contributor.authorKlučáková, Martinacs
dc.contributor.authorPavlíková, Marcelacs
dc.coverage.issue1cs
dc.coverage.volume2017cs
dc.date.issued2017-03-05cs
dc.description.abstractHumic acids are a part of humus material, are abundant in nature, and form a substantial pool of natural organic matter. They participate in the transport of both beneficial and harmful species. Due to their structure and properties, they can interact with metal ions and, with them, form relatively stable complexes.These substances are thus responsible for the so-called self-cleaning ability of soils. Lignite as a young coal type contains a relatively high amount of humic acids which can be used as an environmentally friendly adsorbent for heavymetals. In thiswork, we compared the adsorption of single Cu2+ ions with the simultaneous adsorption of several different metal ions (Cd2+, Cu2+, Pb2+, and Zn2+). The adsorption efficiency of humic acids was very high, almost 100% in the case of the single adsorption of Cu2+ ions andmore than 90% for the adsorption from themixture ofmetal ions.The stability of formed complexes, considered on the basis of the leaching in different extraction agents, was higher than 80%; only 9–18% was in the mobile phase. After adsorption, metal ions are contained in humic acids after adsorption in mainly strongly bonded form (60–73%) and can be liberated from their structure only in low amounts.en
dc.description.abstractHumic acids are a part of humus material, are abundant in nature, and form a substantial pool of natural organic matter. They participate in the transport of both beneficial and harmful species. Due to their structure and properties, they can interact with metal ions and, with them, form relatively stable complexes.These substances are thus responsible for the so-called self-cleaning ability of soils. Lignite as a young coal type contains a relatively high amount of humic acids which can be used as an environmentally friendly adsorbent for heavymetals. In thiswork, we compared the adsorption of single Cu2+ ions with the simultaneous adsorption of several different metal ions (Cd2+, Cu2+, Pb2+, and Zn2+). The adsorption efficiency of humic acids was very high, almost 100% in the case of the single adsorption of Cu2+ ions andmore than 90% for the adsorption from themixture ofmetal ions.The stability of formed complexes, considered on the basis of the leaching in different extraction agents, was higher than 80%; only 9–18% was in the mobile phase. After adsorption, metal ions are contained in humic acids after adsorption in mainly strongly bonded form (60–73%) and can be liberated from their structure only in low amounts.en
dc.formattextcs
dc.format.extent1-5cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJournal of Chemistry. 2017, vol. 2017, issue 1, p. 1-5.en
dc.identifier.doi10.1155/2017/7169019cs
dc.identifier.issn2090-9063cs
dc.identifier.orcid0000-0003-4969-6988cs
dc.identifier.orcid0000-0002-0301-5940cs
dc.identifier.other133984cs
dc.identifier.scopus57193692193cs
dc.identifier.urihttp://hdl.handle.net/11012/68389
dc.language.isoencs
dc.publisherHindawics
dc.relation.ispartofJournal of Chemistrycs
dc.relation.urihttp://dx.doi.org/10.1155/2017/7169019cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2090-9063/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjecthumic acodsen
dc.subjectadsorptionen
dc.subjectcomplexationen
dc.subjectstabilityen
dc.subjecthumic acods
dc.subjectadsorption
dc.subjectcomplexation
dc.subjectstability
dc.titleLignitic humic acids as environmental friendly adsorbent for heavy metalsen
dc.title.alternativeLignitic humic acids as environmental friendly adsorbent for heavy metalsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-133984en
sync.item.dbtypeVAVen
sync.item.insts2025.10.14 14:06:47en
sync.item.modts2025.10.14 10:42:27en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Centrum materiálového výzkumucs
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