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| Study on Removal of U(Ⅵ) from Aqueous Solution by Cornstarch-loaded Nanoscale Zero-valent Iron |
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Received:April 20, 2020
Revised:April 22, 2020
Accepted:April 26, 2020
Published Online:July 17, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.08.017 |
| KeyWord:nanometer zero-valent iron; cornstarch; load; U(Ⅵ); removal |
| Author | Institution |
| SANG Wei-xuan |
东华理工大学 |
| CHEN Rong |
东华理工大学 |
| LI Xiao-yan |
东华理工大学 |
| HE Deng-wu |
东华理工大学 |
| WANG Yang |
东华理工大学 |
| CAO Xiao-gang |
东华理工大学 |
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| Abstract: |
| Cornstarch-loaded nanometer zero-valent iron (CS-NZVI) was prepared by liquid phase reduction method. CS-NZVI was characterized by SEM and XRD. Effects of pH value of solution, initial concentrations of U(Ⅵ), CS-NZVI concentration, temperature, and contact time on removal of U (Ⅵ) were investigated. The results show that dispersion of CS-NZVI is better than that of NZVI. Removal rate and adsorption capacity of U(Ⅵ) is 95.05% and 24.86 mg/g respectively under the optimum conditions including pH value of solution of 6.0, initial concentration of U(Ⅵ) of 10.0 mg/L, CS-NZVI concentration of 0.4 g/L, temperature of 30 ℃, and contact time of 140 min. CS-NZVI has an excellent adsorption effect on U(VI). |
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