Removal of tetrafluoroborate ion from aqueous solution using magnesium-aluminum oxide produced by the thermal decomposition of a hydrotalcite-like compound

Toshiaki Yoshioka; Tomohito Kameda; Motoya Miyahara; Miho Uchida; Tadaaki Mizoguchi; Akitsugu Okuwaki

doi:10.1016/j.chemosphere.2007.05.009

Removal of tetrafluoroborate ion from aqueous solution using magnesium-aluminum oxide produced by the thermal decomposition of a hydrotalcite-like compound

Toshiaki Yoshioka, Tomohito Kameda, Motoya Miyahara, Miho Uchida, Tadaaki Mizoguchi, Akitsugu Okuwaki

Tohoku University

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

Magnesium-aluminum oxide (Mg-Al oxide) prepared by the thermal decomposition of a hydrotalcite-like compound was found to have potential for treating NaBF₄ wastewater. The Mg-Al oxide removed the BF₄^- and F^- and H₃BO₃ from the NaBF₄ solution. With increasing Mg-Al oxide quantity and time, the BF₄^- concentration decreased and the degree of BF₄^-, F^-, and boron removal increased. The decrease in the BF₄^- concentration resulted from uptake by the Mg-Al oxide and not hydrolysis. The Mg-Al oxide took up F^- from the solution preferentially. The Mg-Al oxide also converted the H₃BO₃ in the aqueous solution into H₂ BO₃^-, which it took up.

Original language	English
Pages (from-to)	832-835
Number of pages	4
Journal	Chemosphere
Volume	69
Issue number	5
DOIs	https://doi.org/10.1016/j.chemosphere.2007.05.009
Publication status	Published - 2007 Oct

Keywords

Borate
Fluoride
Hydrotalcite-like compound
Magnesium-aluminum oxide
Removal
Tetrafluoroborate

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10.1016/j.chemosphere.2007.05.009

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title = "Removal of tetrafluoroborate ion from aqueous solution using magnesium-aluminum oxide produced by the thermal decomposition of a hydrotalcite-like compound",

abstract = "Magnesium-aluminum oxide (Mg-Al oxide) prepared by the thermal decomposition of a hydrotalcite-like compound was found to have potential for treating NaBF4 wastewater. The Mg-Al oxide removed the BF4- and F- and H3BO3 from the NaBF4 solution. With increasing Mg-Al oxide quantity and time, the BF4- concentration decreased and the degree of BF4-, F-, and boron removal increased. The decrease in the BF4- concentration resulted from uptake by the Mg-Al oxide and not hydrolysis. The Mg-Al oxide took up F- from the solution preferentially. The Mg-Al oxide also converted the H3BO3 in the aqueous solution into H2 BO3-, which it took up.",

keywords = "Borate, Fluoride, Hydrotalcite-like compound, Magnesium-aluminum oxide, Removal, Tetrafluoroborate",

author = "Toshiaki Yoshioka and Tomohito Kameda and Motoya Miyahara and Miho Uchida and Tadaaki Mizoguchi and Akitsugu Okuwaki",

year = "2007",

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T1 - Removal of tetrafluoroborate ion from aqueous solution using magnesium-aluminum oxide produced by the thermal decomposition of a hydrotalcite-like compound

AU - Yoshioka, Toshiaki

AU - Kameda, Tomohito

AU - Miyahara, Motoya

AU - Uchida, Miho

AU - Mizoguchi, Tadaaki

AU - Okuwaki, Akitsugu

PY - 2007/10

Y1 - 2007/10

N2 - Magnesium-aluminum oxide (Mg-Al oxide) prepared by the thermal decomposition of a hydrotalcite-like compound was found to have potential for treating NaBF4 wastewater. The Mg-Al oxide removed the BF4- and F- and H3BO3 from the NaBF4 solution. With increasing Mg-Al oxide quantity and time, the BF4- concentration decreased and the degree of BF4-, F-, and boron removal increased. The decrease in the BF4- concentration resulted from uptake by the Mg-Al oxide and not hydrolysis. The Mg-Al oxide took up F- from the solution preferentially. The Mg-Al oxide also converted the H3BO3 in the aqueous solution into H2 BO3-, which it took up.

AB - Magnesium-aluminum oxide (Mg-Al oxide) prepared by the thermal decomposition of a hydrotalcite-like compound was found to have potential for treating NaBF4 wastewater. The Mg-Al oxide removed the BF4- and F- and H3BO3 from the NaBF4 solution. With increasing Mg-Al oxide quantity and time, the BF4- concentration decreased and the degree of BF4-, F-, and boron removal increased. The decrease in the BF4- concentration resulted from uptake by the Mg-Al oxide and not hydrolysis. The Mg-Al oxide took up F- from the solution preferentially. The Mg-Al oxide also converted the H3BO3 in the aqueous solution into H2 BO3-, which it took up.

KW - Borate

KW - Fluoride

KW - Hydrotalcite-like compound

KW - Magnesium-aluminum oxide

KW - Removal

KW - Tetrafluoroborate

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SN - 0045-6535

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JO - Chemosphere

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ER -

Removal of tetrafluoroborate ion from aqueous solution using magnesium-aluminum oxide produced by the thermal decomposition of a hydrotalcite-like compound

Abstract

Keywords

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