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https://hdl.handle.net/10356/152943
Title: | Preparation of porous carbon materials by polyphosphazene as precursor for sorption of U(VI) | Authors: | Liu, Xiaopeng Liu, Yan Wang, Yun Yuan, Dingzhong Liu, Jinbiao Chew, Jia Wei |
Keywords: | Engineering::Chemical engineering | Issue Date: | 2021 | Source: | Liu, X., Liu, Y., Wang, Y., Yuan, D., Liu, J. & Chew, J. W. (2021). Preparation of porous carbon materials by polyphosphazene as precursor for sorption of U(VI). Colloid and Interface Science Communications, 41, 100387-. https://dx.doi.org/10.1016/j.colcom.2021.100387 | Journal: | Colloid and Interface Science Communications | Abstract: | Polyphosphazene was synthesized by ultrasonic using 4,4-diaminodiphenyl ether and hexachlorocyclotriphosphazene (HCCP) as precursors. Next, it was further carbonized and functionalized to prepare the carboxylic-acid functionalized N, P co-doped carbon materials (NPCs-COOH). The structure of NPCs-COOH was characterized by FTIR, SEM and XPS. The sorption performance of NPCs-COOH for U(VI) in solution were determined under diverse factors including pH values, initial concentration, equilibrium time and reaction temperature. The results indicated that the optimal pH value was 5.0 and the equilibrium time was 60.0 min. The maximum sorption capacity from experimental results was 425.16 mg/g. The analysis results of the sorption thermodynamics and kinetics showed that the NPCs-COOH had excellent sorption performance so that it can be utilized on removal of U(VI) effectively in aqueous solution. | URI: | https://hdl.handle.net/10356/152943 | ISSN: | 2215-0382 | DOI: | 10.1016/j.colcom.2021.100387 | Schools: | School of Chemical and Biomedical Engineering | Research Centres: | Nanyang Environment and Water Research Institute Singapore Membrane Technology Center |
Rights: | © 2021 Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | NEWRI Journal Articles SCBE Journal Articles |
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Preparation of porous carbon materials by polyphosphazene as precursor for sorption of U(VI).pdf | 2.6 MB | Adobe PDF | View/Open |
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