酰亚胺
氮化物
材料科学
海水
吸附
铀
化学工程
萃取(化学)
核化学
纳米技术
无机化学
化学
冶金
有机化学
高分子化学
工程类
地质学
图层(电子)
海洋学
作者
Lin Zhao,Shiyong Wang,Gang Wang,Lirong Cai,Lingna Sun,Jieshan Qiu
出处
期刊:ACS Nano
[American Chemical Society]
日期:2024-04-23
卷期号:18 (18): 11804-11812
被引量:2
标识
DOI:10.1021/acsnano.4c00344
摘要
Nuclear power plays a pivotal role in the global energy supply. The adsorption-based extraction of uranium from seawater is crucial for the rapid advancement of nuclear power. The phosphorus nitride imide (PN) nanotubes were synthesized in this study using a solvothermal method, resulting in chemically stable cross-linked tubular hollow structures that draw inspiration from the intricate snowflake fractal pattern. Detailed characterization showed that these nanotubes possess a uniformly distributed five-coordinated nanopocket, which exhibited great selectivity and efficiency in binding uranium. PN nanotubes captured 97.34% uranium from the low U-spiked natural seawater (∼355 μg L–1) and showed a high adsorption capacity (435.58 mg g–1), along with a distribution coefficient, KdU > 8.71 × 107 mL g–1. In addition, PN nanotubes showed a high adsorption capacity of 7.01 mg g–1 in natural seawater. The facile and scalable production of PN nanotubes presented in this study holds implications for advancing their large-scale implementation in the selective extraction of uranium from seawater.
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