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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-.
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.
ISSN: 2215-0382
DOI: 10.1016/j.colcom.2021.100387
Rights: © 2021 Elsevier B.V. This is an open access article under the CC BY-NC-ND license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
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