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

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

Research output: Contribution to journalArticlepeer-review

2 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 languageEnglish
Pages (from-to)6793-6797
Number of pages5
JournalACS Applied Nano Materials
Volume2
Issue number11
DOIs
Publication statusPublished - 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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