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Ultrahigh Water Permeance of Reduced Graphene Oxide Membrane for Radioactive Liquid Waste Treatment
| Content Provider | MDPI |
|---|---|
| Author | Xia, Xinming Zhou, Feng Yu, Risheng Cao, Longsheng Chen, Liang |
| Copyright Year | 2021 |
| Description | Membrane methods exhibit great potential for application in radioactive liquid waste treatment. In this work, we prepared a reduced graphene oxide using the amino-hydrothermal method (AH-rGO) that exhibited effective rejection rates of 99.9% for $CoCl_{2}$, $ZnCl_{2}$, $NiCl_{2}$, and radionuclide$ ^{60}$Co solutions with an ultrahigh water permeance of >71.9 L $m^{−2}$ $h^{−1}$ $bar^{−1}$. The thickness of the AH-rGO membranes affects the water permeance, as the membrane with a thickness of ≈250 nm has the highest water permeance of up to 125.1 L $m^{−2}$ $h^{−1}$ $bar^{−1}$ with the corresponding rejection rate of 86.8%. Importantly, this is the most permeable membrane with a satisfactory level of the rejection rate for typical radioactive ions of $Co^{2+}$, $Zn^{2+}$, and $Ni^{2+}$. Moreover, the AH-rGO membranes presented excellent stability. These findings demonstrate the potential of reduced graphene oxide (rGO) membranes for radioactive liquid waste treatment. |
| Starting Page | 809 |
| e-ISSN | 20770375 |
| DOI | 10.3390/membranes11110809 |
| Journal | Membranes |
| Issue Number | 11 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-10-24 |
| Access Restriction | Open |
| Subject Keyword | Membranes Environmental Engineering Environmental Sciences Reduced Graphene Oxide Membrane Radioactive Liquid Waste Nanofiltration Permeance |
| Content Type | Text |
| Resource Type | Article |
