チタンケイ酸ナトリウム担持繊維の作製と得られた繊維の海水からのストロンチウムの除去

鈴木 祐人; 成毛 翔子; 片桐 瑞基; 藤原 邦夫; 須郷 高信; 小島 隆; 河合（野間） 繁子; 梅野 太輔; 斎藤 恭一

doi:10.11457/swsj.72.1_36

Note

Preparation of Sodium Titanium Silicate-Impregnated Fiber and Its Strontium Removal Performance from Seawater

Yuto SUZUKI, Shoko NARUKE, Mizuki KATAGIRI, Kunio FUJIWARA, Takanobu SUGO, Takashi KOJIMA, Shigeko KAWAI-NOMA, Daisuke UMENO, Kyoichi SAITO

Author information

Yuto SUZUKI
Department of Applied Chemistry and Biotechnology, Chiba University
Shoko NARUKE
Department of Applied Chemistry and Biotechnology, Chiba University
Mizuki KATAGIRI
Department of Applied Chemistry and Biotechnology, Chiba University
Kunio FUJIWARA
KJK Co., Ltd.
Takanobu SUGO
KJK Co., Ltd.
Takashi KOJIMA
Department of Applied Chemistry and Biotechnology, Chiba University
Shigeko KAWAI-NOMA
Department of Applied Chemistry and Biotechnology, Chiba University
Daisuke UMENO
Department of Applied Chemistry and Biotechnology, Chiba University
Kyoichi SAITO
Department of Applied Chemistry and Biotechnology, Chiba University

Keywords: Sodium titanium silicate, Adsorptive fiber, Seawater, Strontium removal, Selectivity of Sr to Ca

JOURNAL FREE ACCESS

2018 Volume 72 Issue 1 Pages 36-40

DOI https://doi.org/10.11457/swsj.72.1_36

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Abstract

To raise the adsorption capacity of the adsorptive fiber for strontium ions in seawater, sodium titanium silicate was impregnated onto an anion-exchange fiber. Peroxotitanium complex anions were immobilized onto N, N-dimethylaminopropylacrylamide（DMAPAA）-grafted nylon-6 fiber, followed by a reaction with sodium orthosilicate. The resultant fiber exhibited a strontium removal percentage of 83 ％ and a selectivity of Sr to Ca of 4.3 in artificial seawater, which were 1.1- and two-fold, respectively, higher than those of the sodium-titanate-impregnated fiber.

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