Mesoporous silica synthesised by a local kaolin as efficient adsorbent for the real effluent textile treatment

Autor: Zohra, Fatima, Berrichi, E, Slatni, Ibtissem, Ferdjaoui, Houda, Duplay, Joëlle
Přispěvatelé: Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Hydrologie et de Géochimie de Strasbourg (LHyGeS), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Ecole et Observatoire des Sciences de la Terre (EOST), Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: euroclay
euroclay, Jul 2019, Paris, France
Popis: International audience; In 1992, Mobil company synthesized and characterized the first mesopoous material [1]. Since then, these materials have attracted the interest of many researchers. This interest is justified by their particular properties such as a regular arrangement of the channels, a modulable pore size of 2 to 30 nm greater than zeolites, and a high specific surface area greater than 1000 m 2 .g-1. Physicochemicals propreties allow to use them in various and varied fields such as catalysis, separation, chromatography, biochemistry and adsorption. In our work the mesoporous silica synthesised by local raw clay is a new nanostructured material for environmental textile effluent treatment applications. The DD3 (Djebel Debagh) Kaolin comes from the municipality of Guelma in Algeria and it has been chemically and thermally treated. In addition, the pluronic L35 (EO11PO16EO11) has been used as a structuring agent. X-ray diffraction, X-ray fluorescence, transmission electron microscopy, and nitrogen adsorption-desorption were used to evaluate the textural and structural properties and composition of the synthesized material. The synthesized material gives a surface area of 161 m² / g which is superior to (92 m² / g) the surface area of nanostructured materials in the literature [2]. Its adsorption properties have been tested on textile industry effluents and indicate a good efficiency of treatment by a reduction of most parameters (BOD, COD, etc ...). This suggests that this new mesoporous material synthesised by clay available and inexpensive could have applications in the environmental field. [1] Guisnet , M.,et al., (2006) Les zéolithes, Un nanomonde au service de la catalyse, EDP Sciences. [2] Auta, M.,et al., (2012) Chem. Eng. J. 198-19:219-227. Preferred format: Oral Session number and name: D. Functionalized clays, health and cosmetics D1 Recent progress on nanotechnology and nanomaterials from clay minerals.
Databáze: OpenAIRE
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