用于从海水中高度萃取铀的抗生物污染聚齐聚醚-聚(脒肟)复合水凝胶。

IF 5 3区 化学 Q1 POLYMER SCIENCE
Gels Pub Date : 2024-09-22 DOI:10.3390/gels10090603
Lang Yang, Ye Sun, Yue Sun, Jiawen Wang, Lin Chen, Xueliang Feng, Jinggang Wang, Ning Wang, Dong Zhang, Chunxin Ma
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引用次数: 0

摘要

脒肟功能化水凝胶是从海水中高效提取铀(U)的最有前途的吸附剂之一,但其表面的生物粘附会严重降低其吸附效率,并大大缩短其使用寿命。在此,我们通过紫外线聚合将 PAO 聚合物引入聚[3-(二甲基-4-乙烯基苄基氨基)丙基磺酸](PDVBAP)聚齐聚醚(PZW)网络,探索了一种半互穿性的齐聚醚-聚(氨基肟)(ZW-PAO)水凝胶。由于 PZW 网络的抗聚电解质效应,这种 ZW-PAO 水凝胶可以在海水中提供出色的超亲水性,从而高效吸附海水中的铀。此外,ZW-PAO 水凝胶还具有出色的抗生物污损性能,既能增强对铀的吸附,又能延长在天然海水中的工作寿命。因此,该 ZW-PAO 水凝胶在海水中仅 25 天(不含过滤细菌)的铀吸附量就能达到 9.38 mg/g,平均吸附率达到 0.375 mg/(g∙day),在已报道的吸附剂中表现优异。这项工作探索出了一种从天然海水中高效回收铀的水凝胶,并将启发吸附铀材料的新策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Anti-Biofouling Polyzwitterion-Poly(amidoxime) Composite Hydrogel for Highly Enhanced Uranium Extraction from Seawater.

Amidoxime-functionalized hydrogels are one of most promising adsorbents for high-efficiency uranium (U) extraction from seawater, but bioadhesion on their surface seriously decreases their adsorption efficiency and largely shortens their service life. Herein, a semi-interpenetrating zwitterion-poly(amidoxime) (ZW-PAO) hydrogel was explored through introducing a PAO polymer into a poly [3-(dimethyl 4-vinylbenzyl amino) propyl sulfonate] (PDVBAP) polyzwitterionic (PZW) network via ultraviolet (UV) polymerization. Owing to the anti-polyelectrolyte effect of the PZW network, this ZW-PAO hydrogel can provide excellent super-hydrophilicity in seawater for high-efficiency U-adsorption from seawater. Furthermore, the ZW-PAO hydrogel had outstanding anti-biofouling performance for both highly enhanced U-adsorption and a relatively long working life in natural seawater. As a result, during only 25 days in seawater (without filtering bacteria), the U-uptake amount of this ZW-PAO hydrogel can reach 9.38 mg/g and its average rate can reach 0.375 mg/(g∙day), which is excellent among reported adsorbents. This work has explored a promising hydrogel for high-efficiency U-recovery from natural seawater and will inspire new strategy for U-adsorbing materials.

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来源期刊
Gels
Gels POLYMER SCIENCE-
CiteScore
4.70
自引率
19.60%
发文量
707
审稿时长
11 weeks
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