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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