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Sulfonated perylene-based conjugated microporous polymer as a high-performance adsorbent for photo-enhanced uranium extraction from seawater
Polymer Chemistry ( IF 4.1 ) Pub Date : 2021-1-9 , DOI: 10.1039/d0py01656j Fengtao Yu 1, 2, 3, 4, 5 , Fangru Song 1, 2, 3, 4, 5 , Runze Wang 1, 2, 3, 4, 5 , Mei Xu 1, 2, 3, 4, 5 , Feng Luo 1, 2, 3, 4, 5
Polymer Chemistry ( IF 4.1 ) Pub Date : 2021-1-9 , DOI: 10.1039/d0py01656j Fengtao Yu 1, 2, 3, 4, 5 , Fangru Song 1, 2, 3, 4, 5 , Runze Wang 1, 2, 3, 4, 5 , Mei Xu 1, 2, 3, 4, 5 , Feng Luo 1, 2, 3, 4, 5
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Uranium extraction from seawater employing chemical adsorbents is considered to be a promising strategy to conquer the scarcity of uranium resources. Regrettably, shortcomings of poor adsorption performance and saturated adsorption hinder the development of adsorption strategies to extract uranium from natural seawater where the environment is complicated. Herein, a sulfonated perylene-based conjugated microporous polymer adsorbent (PyB-SO3H) is prepared. The excellent photocatalytic activity of PyB-SO3H ensures the effective generation of active oxygen species (˙O2− and 1O2), which have high antibacterial activity. Moreover, it also promotes photoelectrons to reduce the adsorbed hexavalent uranium to insoluble tetravalent uranium, and facilitate electrostatic attraction of the photogenerated holes to the negative [UO2(CO3)3]4−, thus greatly enhancing the uranium extraction capacity. Owing to this photo-enhanced synergistic effect, the uranium extraction capacity of PyB-SO3H in 500 ppm uranium(VI)-spiked seawater reaches 1.989 g g−1, with a nearly 90% extraction efficiency. This research provides a unique perspective for the development of high-efficiency adsorbents for uranium extraction from seawater.
中文翻译：
磺化per基共轭微孔聚合物作为高性能吸附剂，用于海水中光增强铀的提取
使用化学吸附剂从海水中提取铀被认为是解决铀资源短缺的一种有前途的策略。遗憾的是，吸附性能差和饱和吸附的缺点阻碍了从环境复杂的天然海水中提取铀的吸附策略的发展。在此，制备磺化per基共轭微孔聚合物吸附剂（PyB-SO 3 H）。PYB-SO的优异的光催化活性的3 ħ确保有效生成活性氧种（O 2 -和1 Ò 2），具有很高的抗菌活性。此外，它还促进光电子将吸附的六价铀还原为不溶性四价铀，并促进光生空穴对负[UO 2（CO 3）3 ] 4-的静电吸引，从而大大提高了铀的提取能力。由于这种光增强的协同作用，PyB-SO 3 H在500 ppm铀（VI）掺入的海水中的铀提取能力达到1.989 gg -1，提取效率接近90％。该研究为开发从海水中提取铀的高效吸附剂提供了独特的见解。
更新日期：2021-01-20
中文翻译：
磺化per基共轭微孔聚合物作为高性能吸附剂，用于海水中光增强铀的提取
使用化学吸附剂从海水中提取铀被认为是解决铀资源短缺的一种有前途的策略。遗憾的是，吸附性能差和饱和吸附的缺点阻碍了从环境复杂的天然海水中提取铀的吸附策略的发展。在此，制备磺化per基共轭微孔聚合物吸附剂（PyB-SO 3 H）。PYB-SO的优异的光催化活性的3 ħ确保有效生成活性氧种（O 2 -和1 Ò 2），具有很高的抗菌活性。此外，它还促进光电子将吸附的六价铀还原为不溶性四价铀，并促进光生空穴对负[UO 2（CO 3）3 ] 4-的静电吸引，从而大大提高了铀的提取能力。由于这种光增强的协同作用，PyB-SO 3 H在500 ppm铀（VI）掺入的海水中的铀提取能力达到1.989 gg -1，提取效率接近90％。该研究为开发从海水中提取铀的高效吸附剂提供了独特的见解。
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