Magnetic solid-phase extraction of U(VI) in aqueous solution by Fe3O4@hydroxyapatite

Magnetic solid-phase extraction of U(VI) in aqueous solution by Fe3O4@hydroxyapatite
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Fe3O4@羟基磷灰石磁性固相萃取水溶液中的U(VI)

DOI:
10.1007/s10967-020-07148-y
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发表时间:
2020-04
影响因子:
1.6
通讯作者:
Liu Yunhai
Liu Yunhai
中科院分区:
化学4区
文献类型:
--
作者:
Zeng Dejun;Dai Ying;Zhang Zhibing;Wang Youqun;Cao Xiaohong;Liu Yunhai

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本文制备了磁性羟基磷灰石复合材料(Fe3O4@HAP),并将其用于U(VI)的去除。透射电子显微镜和振动样品磁强计的表征表明,Fe3O4@HAP的平均粒径为360 nm,饱和磁化强度(M-s)为20.89 emu g(-1)。固相萃取结果表明,在pH 5.0时,20 min内Fe3O4@HAP对水中重金属的去除率大于95%,最大吸附量(q(m))为789.58 mg g(-1)。因此,Fe3O4@HAP可能是一种快速、高效的磁性吸附剂。
In this work, the magnetic hydroxyapatite composite (Fe3O4@HAP) was prepared and used to remove of U(VI). The characterizations of transmission electron microscope and vibrating sample magnetometer indicated that the average size and saturation magnetizations (M-s) of Fe3O4@HAP was about 360 nm and 20.89 emu g(-1), respectively. The results of solid-phase extraction indicated that at pH 5.0, the removal efficiency of Fe3O4@HAP was more than 95% within 20 min. The maximum adsorption capacity (q(m)) of Fe3O4@HAP was 789.58 mg g(-1). Therefore, Fe3O4@HAP may be a rapid and highly efficient magnetic adsorbent to remove of U(VI) from water.
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