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

In this work, the magnetic hydroxyapatite composite (Fe 3 O 4 @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 Fe 3 O 4 @HAP was about 3...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2020-06, Vol.324 (3), p.1329-1337
Main Authors: Zeng, Dejun, Dai, Ying, Zhang, Zhibing, Wang, Youqun, Cao, Xiaohong, Liu, Yunhai
Format: Article
Language:English
Subjects:
Aqueous solutions
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Hydroxyapatite
Inorganic Chemistry
Iron oxides
Magnetometers
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Solid phases
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Summary:In this work, the magnetic hydroxyapatite composite (Fe 3 O 4 @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 Fe 3 O 4 @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 Fe 3 O 4 @HAP was more than 95% within 20 min. The maximum adsorption capacity ( q m ) of Fe 3 O 4 @HAP was 789.58 mg g −1 . Therefore, Fe 3 O 4 @HAP may be a rapid and highly efficient magnetic adsorbent to remove of U(VI) from water.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-020-07148-y