Authors:
István Dódony Department of Mineralogy, Eötvös Loránd University, H-1117 Budapest, Pázmány Péter sétány 1/c

Search for other papers by István Dódony in
Current site
Google Scholar
PubMed
Close
,
Tibor Németh Department of Mineralogy, Eötvös Loránd University, H-1117 Budapest, Pázmány Péter sétány 1/c
Institute for Geological and Geochemical Research, Hungarian Academy of Sciences, H-1112 Budapest, Budaörsi út 45, Hungary

Search for other papers by Tibor Németh in
Current site
Google Scholar
PubMed
Close
, and
Viktória K. Kis Institute of Technical Physics and Materials Science, Centre for Energy Research, HAS, H-1121 Budapest, Konkoly Thege Miklós út 29–33, Hungary

Search for other papers by Viktória K. Kis in
Current site
Google Scholar
PubMed
Close
Open access

A natural occurrence of a silica/clay nanocomposite material was investigated by transmission electron microscopy (TEM) and X-ray powder diffraction (XRD). High-resolution images show that this nanocomposite material consists of 5–20 nm thick slabs of smectite and tridymite/cristobalite layers with coincident normals. In spite of the brittle glass-like appearance of the nanocomposite material its colloidal properties are similar to those of pure smectite but partial loss of expansion capacity was detected upon glycerol solvation. The structural relationship between smectite and silica is interpreted based on the smectite structure model of Edelman and Favejee (1940) which supposes reversed tetrahedra in the SiO4 layer of the TOT structure. This structure model explains the presence of silica impurities in bentonites used as raw material and several geological standard montmorillonites.

  • 1.

    Lambert J-F , Bergaya F: Smectite-polymer nanocomposites. In. Handbook of clay science, Eds: Bergaya F, Lagaly G, Elsevier (2006)

  • 2.

    Galarneau A , Barodawalla A, Pinnavaia TJ: Porous clay heterostructures formed by gallery-templated synthesis. Nature 373, 529531 (1995)

    • Search Google Scholar
    • Export Citation
  • 3.

    Polverejan M , Pauly TR, Pinnavaia TJ: Acidic porous clay heterostructures (pch): intragallery assembly of mesoporous silica in synthetic saponite clays. Chem Mater 12, 2698 (2000)

    • Search Google Scholar
    • Export Citation
  • 4.

    Han Y-S , Matsumoto H, Yamanaka S: Preparation of new silica sol-based pillared clays with high surface area and high thermal stability. Chem Mater 9, 20132018 (1997)

    • Search Google Scholar
    • Export Citation
  • 5.

    Duan Q , Zhang J, Tian J, Zhao H: Silica nanorings on the surfaces of layered silicate. Langmuir 27, 1321213219 (2011)

  • 6.

    Letaief S , Ruiz-Hitzky E: Silica-clay nanocomposites. Chem Commun 24, 29962997 (2003)

  • 7.

    Letaief S , Martín-Luengo MA, Aranda P, Ruiz-Hitzky E: A colloidal route for delamination of layered solids: novel porousclay nanocomposites. Adv Funct Mat 16, 401409 (2006)

    • Search Google Scholar
    • Export Citation
  • 8.

    Hofmann U , Endell K, Wilm D: Struktur und Quellung von Montmorillonit, das Tonmineral der Bentonittone. Z Kristallogr 86, 340348 (1933)

    • Search Google Scholar
    • Export Citation
  • 9.

    Edelman CH , Favejee JChL: On the crystal structure of montmorillonite and halloysite. Z Kristallogr 102, 417431 (1940)

  • 10.

    Eggleton RA : The crystal structure of stilpnomelane. Part, II. The full cell. Miner Mag 38, 693711 (1972)

  • 11.

    Eggleton RA : Nontronite: chemistry and X-ray diffraction. Clay Minerals 12, 181194 (1977)

  • 12.

    Ross CS , Hendricks SB: Minerals of the montmorillonite group: Their origin and relation to soil clays. US Geol Surv Prof Pap 205-B, 2379 (1945)

    • Search Google Scholar
    • Export Citation
  • 13.

    Güven N , Grim R: X-ray diffraction and electron optical studies on smectite and {alpha} -cristobalite associations. Clay Clay Miner 20, 8992 (1972)

    • Search Google Scholar
    • Export Citation
  • 14.

    Viani A , Gualtieri AF, Artioli G: The nature of disorder in montmorillonite by simulation of X-ray powder patterns. Am Miner 87, 966975 (2002)

    • Search Google Scholar
    • Export Citation
  • 15.

    Ilieva A , Dimov V: Montmorillonite-cristobalite association in bentonite clays from Bulgarian deposits. Proc of the Jubilee International Conference “80 years BGS”, 7174 (2005)

    • Search Google Scholar
    • Export Citation
  • 16.

    Lutterotti L , Voltolini M, Wenk H-R, Bandyopadhyay K, Vanorio T: Texture analysis of a turbostratically disordered Camontmorillonite. Am Miner 95, 98103 (2010)

    • Search Google Scholar
    • Export Citation
  • 17.

    Nemecz E : Clay minerals. Akadémiai Kiadó, Budapest, 547 pp (1981)

  • 18.

    Liffa A , Csajághy G: Subsequent occurrence of ungvárite (chloropal). Földtani Közlöny 77, 3843 (1947) [in Hungarian]

  • 19.

    Sato M : X-ray study of tridymite. Mineralogical Journal 4, 115130 (1964)

  • 20.

    Manceau A , Chateigener D, Gates WP: Polarized EXAFS, distance-valence least-squares modeling (DVLS), and quantitative texture analysis approaches to the structural refinement of Garfield nontronite. Phys Chem Minerals 25, 347365 (1998)

    • Search Google Scholar
    • Export Citation
  • 21.

    Zvyagin BB : Electron diffraction analysis of clay mineral structures. Plenum Press, New York 364 pp (1967)

  • Collapse
  • Expand

Senior editors

Editor(s)-in-Chief: Béla Pécz

Managing Editor(s): Katalin Balázsi

Co-Editor-in-Chief: Rafal Dunin-Borkowski
(for theory and microscopy techniques)

Co-Editor-in-Chief: Pavel Hozak
(for biomedical sciences)

Editorial Board

  • Filippo Giannazzo - Consiglio Nazionale delle Ricerche (CNR), Institute for Microelectronics and Microsystems (IMM), Catania, Italy
  • Werner Grogger - FELMI, Graz University of Technology, Graz, Austria
  • János Lábár - Institute of Technical Physics and Materials Science, Centre for Energy Research, Hungary
  • Erik Manders - Faculty of Science, SILS, University of Amsterdam, Amsterdam, The Netherlands
  • Ohad Medalia - Department of Biochemistry, Zürich University, Zürich, Switzerland
  • Péter Németh - Institute for Geological and Geochemical Research, Budapest, Hungary
  • Rainer Pepperkok - EMBL, Heidelberg, Germany
  • Aleksander Recnik - J. Stefan Institute, Ljubljana, Slovenia
  • Sara Sandin - Division of Structural Biology & Biochemistry, School of Biological Sciences, Nanyang Technological University, Singapore
  • Nobuo Tanaka - Electron microscope Lab., Ecotopia Science Institute and Dept. of Applied Physics, Nagoya University, Japan
  • Paul Verkade - Wolfson Bioimaging Facility, Schools of Biochemistry and Physiology & Pharmacology, Biomedical Sciences Building, University of Bristol, Bristol, UK

Dr Pécz, Béla
Resolution and Discovery
Institute of Technical Physics and Materials Science
Centre for Energy Research
H-1525 Budapest, PO Box 49, Hungary
E-mail: pecz.bela@ek-cer.hu

Indexing and Abstracting Services:

  • DOAJ
  • CABELLS Journalytics

 

 

Resolution and Discovery
Publication Model Gold Open Access
Online only
Submission Fee none
Article Processing Charge none
Subscription Information Gold Open Access

Resolution and Discovery
Language English
Size A4
Year of
Foundation
2015
Volumes
per Year
1
Issues
per Year
 
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 2498-8707 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Oct 2024 0 103 0
Nov 2024 0 23 1
Dec 2024 0 35 0
Jan 2025 0 50 2
Feb 2025 0 65 2
Mar 2025 0 53 2
Apr 2025 0 0 0