Lignitic Humic Acids as Environmentally-Friendly Adsorbent for Heavy Metals
Humic 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...
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| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2017/7169019 |
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| author | Martina Klučáková Marcela Pavlíková |
| author_facet | Martina Klučáková Marcela Pavlíková |
| author_sort | Martina Klučáková |
| collection | DOAJ |
| description | Humic 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 heavy metals. In this work, 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 and more than 90% for the adsorption from the mixture of metal 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. |
| format | Article |
| id | doaj-art-e9e61efc9f6f4599822cd3df0a725728 |
| institution | OA Journals |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
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| series | Journal of Chemistry |
| spelling | doaj-art-e9e61efc9f6f4599822cd3df0a7257282025-08-20T02:21:53ZengWileyJournal of Chemistry2090-90632090-90712017-01-01201710.1155/2017/71690197169019Lignitic Humic Acids as Environmentally-Friendly Adsorbent for Heavy MetalsMartina Klučáková0Marcela Pavlíková1Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 612 00 Brno, Czech RepublicInstitute of Chemistry, Faculty of Civil Engineering, Brno University of Technology, Žižkova 17, 602 00 Brno, Czech RepublicHumic 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 heavy metals. In this work, 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 and more than 90% for the adsorption from the mixture of metal 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.http://dx.doi.org/10.1155/2017/7169019 |
| spellingShingle | Martina Klučáková Marcela Pavlíková Lignitic Humic Acids as Environmentally-Friendly Adsorbent for Heavy Metals Journal of Chemistry |
| title | Lignitic Humic Acids as Environmentally-Friendly Adsorbent for Heavy Metals |
| title_full | Lignitic Humic Acids as Environmentally-Friendly Adsorbent for Heavy Metals |
| title_fullStr | Lignitic Humic Acids as Environmentally-Friendly Adsorbent for Heavy Metals |
| title_full_unstemmed | Lignitic Humic Acids as Environmentally-Friendly Adsorbent for Heavy Metals |
| title_short | Lignitic Humic Acids as Environmentally-Friendly Adsorbent for Heavy Metals |
| title_sort | lignitic humic acids as environmentally friendly adsorbent for heavy metals |
| url | http://dx.doi.org/10.1155/2017/7169019 |
| work_keys_str_mv | AT martinaklucakova lignitichumicacidsasenvironmentallyfriendlyadsorbentforheavymetals AT marcelapavlikova lignitichumicacidsasenvironmentallyfriendlyadsorbentforheavymetals |