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Crystallization of Layered Double Hydroxides by Ultrasound and the Effect of Crystal Quality on Their Surface Properties

Published online by Cambridge University Press:  01 January 2024

Yoshimi Seida ,
Yoshio Nakano  and
Yasuo Nakamura
Yoshimi Seida*
Affiliation:
Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama, 226-8502 Japan
Yoshio Nakano
Affiliation:
Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama, 226-8502 Japan
Yasuo Nakamura
Affiliation:
Mitsubishi Nuclear Fuel Co., Ltd., 622-1, Funaishikawa, Tokai-mura, Naka-gun, Ibaraki, 319-11 Japan
*
*E-mail address of corresponding author: seida@iri.or.jp
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Abstract

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The ultrasound technique was applied to the synthesis of layered double hydroxides. The use of ultrasound in the synthesis of these compounds was studied in terms of its effect on their crystal qualities and surface properties. The crystal qualities of the compounds synthesized with ultrasound were compared with those of compounds synthesized without ultrasound to elucidate the effect of the ultrasound on the synthesis. The effect of crystal quality (crystallite size) on the adsorption behavior of humic substances was examined. The compounds synthesized under ultrasonic conditions showed a larger crystallite size and a larger adsorption capacity for humic substances than those synthesized without ultrasonic treatment. The degree of adsorption correlated well with crystal quality.

Keywords

Crystal QualityHumic AcidsHydrotalciteLayered Double HydroxidePyroauriteSynthesisUltrasoundWater Treatment
Type
Research Article
Information
Clays and Clay Minerals , Volume 50 , Issue 4 , August 2002 , pp. 525 - 532
Copyright
Copyright © 2002, The Clay Minerals Society

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