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Porous zirconium complex-layered titanate nanohybrids with gas adsorption and photocatalytic activity

Title
Porous zirconium complex-layered titanate nanohybrids with gas adsorption and photocatalytic activity
Authors
Kim I.Y.Lee K.Y.Kim T.W.Hwang S.-J.
Ewha Authors
황성주
SCOPUS Author ID
황성주scopus
Issue Date
2011
Journal Title
Materials Letters
ISSN
0167-577XJCR Link
Citation
vol. 65, no. 5, pp. 894 - 896
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Porous zirconium complex-layered titanate nanohybrids were synthesized by reassembling reaction between negative-charged layered titanate nanosheets and positive-charged zirconium complex. According to powder X-ray diffraction and electron microscopy, titanate monolayers were interstratified with zirconium species with the repeating unit of ~ 1.2 nm. X-ray absorption spectroscopy at Zr K-edge and Ti K-edge clearly demonstrated that mononuclear zirconium complex was intercalated into lepidocrocite-structured titanate layers. From N 2 adsorption-desorption isotherm measurement, the hybridization reaction produced highly porous material with the expanded surface area of ~ 176 m2g- 1. The zirconium complex-layered titanate nanohybrids showed functionalities not only for adsorption of CO2 gas but also for photodegradation of organic molecules. This finding underscored that the reassembling of layered metal oxide with zirconium ions provides powerful ways to synthesize highly porous materials applicable for gas adsorbents and photocatalysts. © 2010 Elsevier B.V. All rights reserved.
DOI
10.1016/j.matlet.2010.12.002
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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