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interlayer grafting

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Series: Clay Minerals Society Workshop Lectures
Published: 01 January 2016
DOI: 10.1346/CMS-WLS-20.3
EISBN: 9781881208457
... kaolinites and their anion-exchange properties; and (4) interlayer grafted kaolinites for heavy-metal sorption. Kaolin-group minerals of composition Al 2 Si 2 O 5 (OH) 4 include: kaolinite, halloysite, dickite, and nacrite. Only the first two are of commercial importance, mainly...
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Journal Article
Published: 01 October 2003
Clays and Clay Minerals (2003) 51 (5): 555-565.
... ‘single 58 Å phase’ with the two-layer arrangement of ODA molecules in the interlayer. Grafted nano-layers of ODA chains with average height of 49.6(2.1) Å were found, using AFM, on the surfaces of thin micro-flakes selected from the intercalated coarse-grained sample. Grafted ODA chains create...
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Journal Article
Journal: Clay Minerals
Published: 01 December 2005
Clay Minerals (2005) 40 (4): 537-546.
...J. E. F. C. GARDOLINSKI; G. LAGALY Abstract Several new interlayer-grafted derivatives of kaolinite were synthesized by esterification of inner-surface hydroxyl groups with alkanols, diols and glycol mono-ethers starting with the dimethyl sulphoxide intercalate. The derivatives were characterized...
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Journal Article
Published: 01 October 2009
Clays and Clay Minerals (2009) 57 (5): 638-648.
... goal of this work was to graft, in a controlled way, alkylammonium groups onto the aluminol interlayer surfaces of kaolinite. This was successfully achieved by soft-chemical approaches, more specifically by the melting intercalation process of alkylammonium ionic liquids which were synthesized...
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Series: Clay Minerals Society Workshop Lectures
Published: 01 January 2016
DOI: 10.1346/CMS-WLS-20.4
EISBN: 9781881208457
..., leading to Si—O—Si or Al—O—Si or Mg—O—Si iono-covalent bonds. Reactions can be restricted to external broken edges, with no change in the basal spacing or at the layer surface (in which case an interlayer expansion occurs). Functio-nalization by grafting on the surface or on broken clay minerals edges...
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Journal Article
Published: 01 August 2009
Clays and Clay Minerals (2009) 57 (4): 452-464.
... chosen. The experimental procedure consisted of four stages: (1) preparation of a dimethyl sulfoxide precursor intercalate; (2) interlayer grafting with 1,3-butanediol; (3) hexylamine intercalation; and (4) deintercalation of amine-intercalated minerals using toluene as the solvent. Structural...
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Journal Article
Journal: Clay Minerals
Published: 01 September 2014
Clay Minerals (2014) 49 (4): 527-539.
.... Detellier C. ( 2008 ) Interlayer grafting of glycidol (2,3-epoxy-1-propanol) on kaolinite . Canadian Journal of Chemistry , 86 , 1 – 6 . Lothenbach B. Furrer G. Schulin R. ( 1997 ) Immobilization of heavy metals by polynuclear aluminium and montmorillonite compounds...
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Journal Article
Journal: Clay Minerals
Published: 01 December 2005
Clay Minerals (2005) 40 (4): 547-556.
... of kaolinite. It was the aim of this work to investigate the delamination of kaolinite using an optimized method based on intercalation of long-chain amines and washing in an organic medium, as well as to determine how the interlayer grafting of organic molecules into kaolinite would influence...
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Journal Article
Published: 01 June 2012
Clays and Clay Minerals (2012) 60 (3): 227-239.
... ; Johnston and Stone, 1990 ; Franco and Ruiz Cruz, 2004 ; Li et al. , 2009 ). The intercalation process opens access to the basal surfaces, which can be modified by further treatment. The interlayer aluminol groups are susceptible to grafting with different organic molecules ( Tunney and Detellier, 1993...
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Journal Article
Journal: Clay Minerals
Published: 01 June 2001
Clay Minerals (2001) 36 (2): 263-266.
... of interlayer OH groups . Inorg. Chem . 27 , 2785 – 2790 . Ruiz-Hitzky E. & Rojo M. ( 1980 ) Intracrystalline grafting on layer silicic acid . Nature , 287 , 28 – 30 . Ruiz-Hitzky E. , Rojo M. & Lagaly G. ( 1985 ) Mechanism of the grafting...
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Journal Article
Published: 01 August 2006
Clays and Clay Minerals (2006) 54 (4): 418-425.
...Xiaofei Tian; Min Wei; David G. Evans; Guoying Rao; Heli Yang Abstract The controlled chemical oxidative polymerization of metanilic anion ( m -NH 2 C 6 H 4 SO 3 − ) within the interlayer of NiAl layered double hydroxide was performed using, for the first time, ammonium persulfate as the oxidizing...
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Journal Article
Published: 01 August 2016
Clays and Clay Minerals (2016) 64 (4): 503-511.
...Jinhong Zhou; Xiancai Lu; Edo S. Boek Abstract Interlayer swelling of hydrated montmorillonite is an important issue in clay mineralogy. Although the swelling behavior of montmorillonite under ambient conditions has been investigated comprehensively, the effects of basin conditions on the hydration...
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Journal Article
Published: 01 December 2007
Clays and Clay Minerals (2007) 55 (6): 554-564.
... research ( Lagaly et al. , 2006 ). In the preparation of polymer-clay nanocomposites (PCNs), alkylammonium species are principally used as modifiers to make the interlayer spaces of silicates organophilic, and such modification promotes the entrance of polymers ( Lagaly et al. , 2006 ). The organophilic...
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Journal Article
Published: 01 July 2015
American Mineralogist (2015) 100 (7): 1341-1354.
... and dynamical behavior of cations, anions, H 2 O, and CO 2 on the surfaces and in the interlayer galleries of layer-structure minerals and their composites with polymers and natural organic matter (NOM). The interaction among mineral surfaces, charge-balancing cations or anions, H 2 O, CO 2 , and NOM...
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Journal Article
Published: 01 August 2014
American Mineralogist (2014) 99 (8-9): 1724-1735.
...Baptiste Dazas; Eric Ferrage; Alfred Delville; Bruno Lanson Abstract The present study aims primarily at refining a structure model for interlayer cations and H 2 O molecules in tri-hydrated (3W) smectite ( d 001 = 18–19 Å). The <2 μm fraction of the SWy-2 source clay (low-charge montmorillonite...
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Journal Article
Published: 01 August 2016
Clays and Clay Minerals (2016) 64 (4): 348-373.
...Eric Ferrage Abstract Investigation of the organization of interlayer water and cations in smectite is a permanent topic in clay science for environmental science, civil engineering, materials science, and industrial applications. Experimental X-ray (or neutron) diffraction methods and molecular...
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Journal Article
Published: 01 February 2015
Clays and Clay Minerals (2015) 63 (1): 1-14.
... al ., 2009 ). The results of the present study indicate that the initial interlayer d 001 spacing (i.e. 10.0 Å) increased slightly after silane grafting. Some silanes, therefore, had been intercalated between clay layers while the rest of the silanes were grafted at the edges via a condensation...
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Journal Article
Published: 01 April 2011
Clays and Clay Minerals (2011) 59 (2): 116-135.
..., in the procedure adopted in the present study, methanol was used instead of 1,3-butanediol for grafting reactions and octadecylamine intercalation was also performed. The samples were examined using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC...
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Series: European Mineralogical Union Notes in Mineralogy
Published: 01 January 2011
DOI: 10.1180/EMU-notes.11.7
EISBN: 9780903056458
... of the internal basal surface ( Tunney & Detellier, 1993 ). Interlayer kaolinite grafting was described exhaustively by Gardolinsky in his doctoral thesis (2005). The advantage of grafting compared to the intercalation mechanism is that it allows an irreversible fixation of organic units on the layers...
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Journal Article
Published: 01 February 2007
American Mineralogist (2007) 92 (2-3): 397-402.
... double hydroxides (LDHs). X-ray diffraction, compositional analysis, and thermal analysis confirm successful intercalation of trivalent citrate anions into the interlayers of the Mg/Al hydrotalcite using an ion-exchange method. The basal spacing changes from 8.9 Å at relative humidity (R.H.) = 0...
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