Adsorption of arsenic using high surface area magnetites |
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Authors: | Kaoru Ohe Tatsuya Oshima Yoshinari Baba |
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Institution: | (1) Department of Applied Chemistry, University of Miyazaki, 1-1 Gakuenkibanadai-Nishi, Miyazaki 889-2192, Japan; |
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Abstract: | Magnetites (MEBWx) were prepared by precipitation in 1-butanol/water mixtures of various mole ratios of 1-butanol to water.
It was found that the magnetites prepared in the mixture with high mole ratio of 1-butanol to water have high specific surface
area. The adsorption isotherms of As(III) and As(V) with the magnetites at 303 K fitted the Langmuir model well. The adsorption
capacities of the magnetite prepared in the mixtures were higher than those of the magnetite prepared without 1-butanol. Their
adsorption capacities increased with increasing specific surface area. |
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Keywords: | |
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