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Clays, intercalated with organic substances for environmental technologies
Univ Latvia, Latvia.
Univ Latvia, Latvia.
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science.ORCID iD: 0000-0003-0269-4790
2018 (English)In: International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM, International Multidisciplinary Scientific GeoConference & EXPO SGEM , 2018, no 5.2, p. 197-202Conference paper, Published paper (Refereed)
Abstract [en]

It is well documented that the interlayer space of clay minerals, notably smectites (e.g., montmorillonite), can be intercalated with wide variety of inorganic cations or organic cations through ion exchange reactions or using other physical and chemical means of interaction. When the modification of smectite is performed with organic cations, their properties change from hydrophilic to hydrophobic. Therefore, the resulting materials become efficient sorbents of organic contaminants in wastewater, e.g., as sorbing materials in landfill liners etc. Organophilic montmorillonite is prepared through exchange of smectite interlayer cations with long chain (C16-C18) alkylammonium-based ions (surfactants). Ionic liquids containing long chain cations (mostly imidazolium based) are another alternative to conventional nanoparticle modifiers. The review provides an overview of available clay based intercalated materials with various ionic liquids and surfactants, their effectiveness in removal of organic contaminants, and potential applications in environmentally friendly technologies. Present review is providing a platform for understanding the structure, properties and potential applications of organically modified clay materials, especially emphasizing water treatment. © SGEM2018.

Place, publisher, year, edition, pages
International Multidisciplinary Scientific GeoConference & EXPO SGEM , 2018. no 5.2, p. 197-202
Series
International Multidisciplinary Scientific GeoConference SGEM ..., ISSN 1314-2704
Keywords [en]
Clay sorbents, Ionic liquids, Organic contaminants, Surfactants, Water treatment, Clay minerals, Environmental technology, Organic minerals, Positive ions, Surface active agents, Environmentally-friendly technology, Imidazolium-based, Ion exchange reactions, Organic contaminant, Organic substances, Organophilic montmorillonites, Resulting materials, Structure, properties, Ion exchange
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-83471DOI: 10.5593/sgem2018/5.2/S20.026Scopus ID: 2-s2.0-85058880360OAI: oai:DiVA.org:lnu-83471DiVA, id: diva2:1318534
Conference
18th International Multidisciplinary Scientific Geoconference, SGEM 2018, 2 July 2018 through 8 July 2018
Available from: 2019-05-28 Created: 2019-05-28 Last updated: 2019-06-13Bibliographically approved

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Burlakovs, Juris

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