Clays and modified clays in remediating environmental pollutants
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EDITORIAL
Clays and modified clays in remediating environmental pollutants Bhabananda Biswas 1 & Jérôme Labille 2 & Benedicte Prelot 3
# Springer-Verlag GmbH Germany, part of Springer Nature 2020
Clay mineral is a layered hydrated aluminosilicate that makes up fine-sized particles (< 2 μm) in rock, sediment, and soils. Clay is a major reactive component of soil and surface water, where it plays an important role in determining the fate of contaminants, such as trace elements and organic pollutants (Schoonheydt et al. 2018). As a result of the ability of these minerals to adsorb a wide variety of these substances, both the lamellar and porous structures of natural and modified clay varieties (e.g., organically treated, acid-activated, pillared, nanocomposites, layered double hydroxides, among others), have long been of interest to understand their diffusion or for remediation purposes. However, several research aspects remain of special importance, in particular, the synthesis and characterization of new clay materials, the physicochemical behavior of pollutant adsorption in natural environments, and the biocompatibility and reusability of the clays and modified clays (Biswas et al. 2019). Considering this field of research, the “Euroclay 2019” conference that is the meeting of the European Clay Groups Association (ECGA) jointly with the 56th annual meeting of the Clay Minerals Society (CMS) and the 6th Mediterranean Clay Meeting (MCM) hosted a session titled “The role of clays and modified clays in remediating environmental pollutants” on 1–5 July 2019 in Paris, France. The 2-day long session was delivered with 18 oral and 40 poster presentations, while Dr. Lydie Le Forestier, University of Orléans, was addressed as the keynote lecture. They presented various fundamental and applied aspects of environmental
Responsible editor: Philippe Garrigues * Benedicte Prelot [email protected] 1
Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia
2
CNRS, IRD, INRAe, Coll France, CEREGE, Aix Marseille University, Aix-en-Provence, France
3
Institute Charles Gerhardt, Montpellier University, Montpellier, France
applications of smectite, halloysite, kaolinite, layered double hydroxides (LDHs), and their modified materials. This special issue of Environmental Science and Pollution Research (ESPR) journal aims to publish some of the research presented at this session. All the submitted manuscripts went under vigorous peer-reviewing process according to the journal’s policies, while the decision of the acceptance for the publication was taken by the core editors of the journal. The articles presented in this special issue deal with different aspects of pollutant remediation by clays. As a local, abundant, and inexpensive resource, clays and modified clays have been investigated as potential adsorbent materials in water treatment processes for the removal of pollutant. A high specific surface area coupled with high reactivity makes clays promising solutions for this ris
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