著者

Fumiya Matsuzawa Yoshimasa Amano Motoi Machida

出版者

Japan Society of Ion Exchange

雑誌

日本イオン交換学会誌 (ISSN:0915860X)

巻号頁・発行日

vol.34, no.1, pp.7-10, 2023 (Released:2023-01-21)

参考文献数

11

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Activated carbon fiber (ACF) with enhanced phosphates ion adsorption performance was prepared by cellulose-based activated carbon fiber (KF1500LDA) modified with amines. The raw material KF1500LDA was oxidized with hydrogen peroxide solution for 2 h and then reacted with diethylenetriamine (N1-(2-aminoethyl)-1,2-ethenediamine) at 10°C for 6 hours to maximize the phosphates ion adsorption amount. The maximum adsorption amount achieved 0.13 mmol/g when the equilibrium pH (pHe) was 3.0. The specific surface area of the diethylenetriamine-modified sample was 1603 m2/g. Elemental analysis showed that the nitrogen content increased to 2.8 wt%, about 1.8 times greater than that of the raw material.