書誌事項
- タイトル別名
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- Hydrothermal Synthesis of Seaweed-Like Sodium Titanate Mat and Its Sr<sup>2+</sup> Sorption Property
抄録
<p>Titanates are one of promising sorbents for toxic heavy metal ions and radionuclides due to various chemical formulas and crystal structures, and their functional properties. Herein, we present a unique seaweed-like sodium titanate mat (SST) with randomly distributed layered sodium dititanate nanofibers synthesized by a simple hydrothermal process. We focused on the effect of NaOH concentration during the hydrothermal process on crystallographic properties and investigated the synthesis conditions for SST. Furthermore, Sr2+ sorption properties of SST and related titanates, which were synthesized by hydrothermal process, was studied by batch tests. SST, which consist of a dititanate phase, was synthesized at 10 mol/L NaOH concentration and trititanate phase was formed when the NaOH concentration was increased to 15 mol/L. The SST showed a high ion-exchange selectivity of Sr2+ against H+ and a high maximum sorption capacity (2 mmol/g), compared with the case of trititanate phase (0.49 mmol/g), which shows the precipitation of SrCO3. This was presumably due to the difference of crystal structure of two titanates. This study demonstrates that the design of the crystal structure is important for controlling the sorption mechanism of sorbents for water treatment.</p>
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 71 (5), 167-174, 2024-05-15
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390863041926269312
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- ISSN
- 18809014
- 05328799
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
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- 抄録ライセンスフラグ
- 使用不可