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Nax−y Hy Ti2−x Fex O4 ·nH2 O nanosheets with lepidocrocite-like layered structure synthesized by hydrothermal treatment of ilmenite sand

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2011
paper979-704.pdf (957.4Kb)
Authors
Jardim, Paula M.
Mančić, Lidija
Marinković, Bojan
Milošević, Olivera
Rizzo, Fernando C.
Article (Published version)
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Abstract
Nax−yHyTi2−xFexO4·nH2O nanosheets with lepidocrocite-like layered structure were produced through alkaline hydrothermal treatment at very low temperatures (130°C) from ilmenite sand. The crystal structure, morphology and optical properties were investigated by X-Ray diffraction, transmission electron microscopy, selected area electron diffraction, energy dispersive spectroscopy and UV-Vis spectroscopy. The product shows leaf-like nanosheet morphology with thickness <30 nm and lengths <1 µm. Three lepidocrocite-like titanates (Imm2 space group) with similar a and c lattice parameters but different interlayer distances (b/2) were identified. This appears to be the first preparation of lepidocrocite-like layered nanosheets by a simple, energy efficient (low temperature) and low cost (starting from mineral sand) procedure.
Keywords:
Ilmenite / hydrothermal synthesis / X-ray diffraction / transmission electron microscopy / Lepidocrocite-like layered structure
Source:
Central European Journal of Chemistry, 2011, 9, 3, 415-421
Publisher:
  • Springer
Projects:
  • Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology (RS-172035)
  • Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-45020)

DOI: 10.2478/s11532-011-0016-8

ISSN: 1895-1066 (Print); 1644-3624 (Online)

WoS: 000291253000007

Scopus: 2-s2.0-79958756787
[ Google Scholar ]
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URI
http://dais.sanu.ac.rs/123456789/707
Collections
  • ITN SANU - Opšta kolekcija / ITS SASA - General collection
Institution
Институт техничких наука САНУ / Institute of Technical Sciences SASA

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