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Heterostructured nanohybrid of zinc oxide-montmorillonite clay

Title
Heterostructured nanohybrid of zinc oxide-montmorillonite clay
Authors
Hur S.G.Kim T.W.Hwang S.-J.Hwang S.-H.Yang J.H.Choy J.-H.
Ewha Authors
최진호황성주양재훈
SCOPUS Author ID
최진호scopus; 황성주scopus; 양재훈scopus
Issue Date
2006
Journal Title
Journal of Physical Chemistry B
ISSN
1520-6106JCR Link
Citation
vol. 110, no. 4, pp. 1599 - 1604
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We have synthesized heterostructured zinc oxide-aluminosilicate nanohybrids through a hydrothermal reaction between the colloidal suspension of exfoliated montmorillonite nanosheets and the sol solution of zinc acetate. According to X-ray diffraction, N2 adsorption-desorption isotherm, and field emission-scanning electron microscopic analyses, it was found that the intercalation of zinc oxide nanoparticles expands the basal spacing of the host montmorillonite clay, and the crystallites of the nanohybrids are assembled to form a house-of-cards structure. From UV-vis spectroscopic investigation, it becomes certain that calcined nanohybrid contains two kinds of the zinc oxide species in the interlayer space of host lattice and in mesopores formed by the house-of-cards type stacking of the crystallites. Zn K-edge X-ray absorption near-edge structure/extended X-ray absorption fine structure analyses clearly demonstrate that guest species in the nanohybrids exist as nanocrystalline zinc oxides with wurzite-type structure. © 2006 American Chemical Society.
DOI
10.1021/jp0543633
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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