Enhance antimony adsorption from aquatic environment by microwave-assisted prepared Fe 3 O 4 nanospherolites.

Autor: Yu SH; School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China. yushenghui@sust.edu.cn., Wang Y; School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China., Wan YY; School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China., Guo JK; School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2023 Sep; Vol. 30 (41), pp. 94401-94413. Date of Electronic Publication: 2023 Aug 02.
DOI: 10.1007/s11356-023-29060-0
Abstrakt: A novel hierarchically nanostructured magnetite (Fe 3 O 4 ) was manufactured using microwave-assisted reflux method without surfactants. The nanostructured Fe 3 O 4 is formed via the co-precipitation of Fe(III) and Fe(II), followed by a nanocrystal aggregation-based mechanism. Moreover, the effects of solution pH, contact time, initial Sb concentration, coexisting anions, and recycle numbers on the adsorption of nanostructured Fe 3 O 4 toward Sb were extensively examined in the batch adsorption tests. The results demonstrated that the obtained Fe 3 O 4 exhibited excellent adsorption ability toward Sb with the maximum adsorption capacities of 154.2 and 161.1 mg.g -1 for Sb(III) and Sb(V), respectively. The prepared Fe 3 O 4 could be easily regenerated and reused for adsorption/desorption studies multiple times without compromising the Sb adsorption ability. Further exploration indicated that the oxidation or reduction reactions infrequently occurred during Sb adsorption processes. The proposed hierarchically nanostructured Fe 3 O 4 thus could be potentially used for sustainable and efficient antimony removal.
(© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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