Granular Barium Titanate Nanowire-Based Adsorbents for the Removal of Strontium Ions from Contaminated Water

Teppei Saito; Norihito Shiraiwa; Yuta Morioka; Kazuto Akagi; Koji Nakayama; Tadafumi Adschiri; Naoki Asao

doi:10.1021/acsanm.9b01737

Granular Barium Titanate Nanowire-Based Adsorbents for the Removal of Strontium Ions from Contaminated Water

Teppei Saito, Norihito Shiraiwa, Yuta Morioka, Kazuto Akagi, Koji Nakayama, Tadafumi Adschiri, Naoki Asao

Advanced Institute for Materials Research (AIMR)

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

6 Citations (Scopus)

Abstract

Highly selective uptake of Sr²⁺ was achieved by the use of granulated barium titanate nanowires as a designed practical adsorbent, which is desirable for use in decontamination like at Fukushima. The adsorbents were produced by the fabrication of sodium titanate nanowires through the dealloying of TiZn₁₆ in a NaOH aqueous solution at room temperature, granulation followed by calcination, and ion exchange with BaCl₂. Furthermore, the uptake of Sr²⁺ proceeds with the suppression of elution of the exchanged Ba²⁺ by the formation of barium salt particles with sulfate ions contained in seawater.

Original language	English
Pages (from-to)	6793-6797
Number of pages	5
Journal	ACS Applied Nano Materials
Volume	2
Issue number	11
DOIs	https://doi.org/10.1021/acsanm.9b01737
Publication status	Published - 2019 Nov 22

Keywords

barium titanate nanowire
dealloying method
granular adsorbents
ion exchange
strontium ion
titanium-zinc alloy

ASJC Scopus subject areas

Materials Science(all)

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10.1021/acsanm.9b01737

Cite this

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title = "Granular Barium Titanate Nanowire-Based Adsorbents for the Removal of Strontium Ions from Contaminated Water",

abstract = "Highly selective uptake of Sr2+ was achieved by the use of granulated barium titanate nanowires as a designed practical adsorbent, which is desirable for use in decontamination like at Fukushima. The adsorbents were produced by the fabrication of sodium titanate nanowires through the dealloying of TiZn16 in a NaOH aqueous solution at room temperature, granulation followed by calcination, and ion exchange with BaCl2. Furthermore, the uptake of Sr2+ proceeds with the suppression of elution of the exchanged Ba2+ by the formation of barium salt particles with sulfate ions contained in seawater.",

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author = "Teppei Saito and Norihito Shiraiwa and Yuta Morioka and Kazuto Akagi and Koji Nakayama and Tadafumi Adschiri and Naoki Asao",

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T1 - Granular Barium Titanate Nanowire-Based Adsorbents for the Removal of Strontium Ions from Contaminated Water

AU - Saito, Teppei

AU - Shiraiwa, Norihito

AU - Morioka, Yuta

AU - Akagi, Kazuto

AU - Nakayama, Koji

AU - Adschiri, Tadafumi

AU - Asao, Naoki

PY - 2019/11/22

Y1 - 2019/11/22

N2 - Highly selective uptake of Sr2+ was achieved by the use of granulated barium titanate nanowires as a designed practical adsorbent, which is desirable for use in decontamination like at Fukushima. The adsorbents were produced by the fabrication of sodium titanate nanowires through the dealloying of TiZn16 in a NaOH aqueous solution at room temperature, granulation followed by calcination, and ion exchange with BaCl2. Furthermore, the uptake of Sr2+ proceeds with the suppression of elution of the exchanged Ba2+ by the formation of barium salt particles with sulfate ions contained in seawater.

AB - Highly selective uptake of Sr2+ was achieved by the use of granulated barium titanate nanowires as a designed practical adsorbent, which is desirable for use in decontamination like at Fukushima. The adsorbents were produced by the fabrication of sodium titanate nanowires through the dealloying of TiZn16 in a NaOH aqueous solution at room temperature, granulation followed by calcination, and ion exchange with BaCl2. Furthermore, the uptake of Sr2+ proceeds with the suppression of elution of the exchanged Ba2+ by the formation of barium salt particles with sulfate ions contained in seawater.

KW - barium titanate nanowire

KW - dealloying method

KW - granular adsorbents

KW - ion exchange

KW - strontium ion

KW - titanium-zinc alloy

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Granular Barium Titanate Nanowire-Based Adsorbents for the Removal of Strontium Ions from Contaminated Water

Abstract

Keywords

ASJC Scopus subject areas

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