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- Title
Adsorption performance and mechanism of U(VI) in aqueous solution by hollow microspheres Bi<sub>2</sub>WO<sub>6</sub>.
- Authors
Zheng, Zhouhao; Liu, Jinxiang; Yu, Hengyi; Wang, Yue; Chen, Chunning; Wang, Jinsong; Wang, Shuiyun
- Abstract
Hollow microspheres Bi2WO6 (HBWO) were prepared by the solvothermal method for the adsorption of U(VI) from aqueous solutions. Batch experiments and characterization analysis investigated the adsorption performance and mechanism. The results showed that the adsorption equilibrium could be reached in 30 min at T = 303 K, pH = 6, CU(VI) = 10 mg/L, m/V = 0.1 g/L. The removal efficiency of HBWO for U(VI) in solution was 95.53%, which was about 20% higher than Bi2WO6 nanosheets. The maximum Langmuir adsorption capacity could reach 523.13 mg/g. FTIR and XPS analysis indicated that the interaction mechanism of U(VI) with HBWO is mainly surface complexation of strong ionic bond (M–O) and hydroxyl (–OH) groups. In addition, HBWO has strong ion selectivity for U(VI) and good regeneration and reuse performance. These results demonstrated that HBWO might potentially remediate actual uranium-containing wastewater.
- Subjects
AQUEOUS solutions; IONIC bonds; MICROSPHERES; ADSORPTION (Chemistry); ADSORPTION capacity
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2023, Vol 332, Issue 6, p1755
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-023-08842-3