학술논문
Preparation of Original and Calcined Layered Double Hydroxide as Low-Cost Adsorbents: The Role of the Trivalent Cation on Methylene Blue Adsorption.
Document Type
Article
Source
Subject
*METHYLENE blue
*LAYERED double hydroxides
*SORBENTS
*HYDROXIDES
*ADSORPTION (Chemistry)
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Language
ISSN
1420-3049
Abstract
Layered double hydroxides with the hydrotalcite-like structure, containing Mg2+, Al3+, and Fe3+ (with different Al/Fe ratios) in the layers, have been synthesized and fully characterized, as have the mixed oxides formed upon their calcination at 500 °C. Both series of solids (original and calcined ones) have been tested for methylene blue adsorption. In the case of the Fe-containing sample, oxidation of methylene blue takes place simultaneously with adsorption. For the calcined samples, their reconstruction to the hydrotalcite-like structure plays an important role in their adsorption ability. [ABSTRACT FROM AUTHOR]