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
期刊介绍: The journal Gels (ISSN 2310-2861) is an international, open access journal on physical (supramolecular) and chemical gel-based materials. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the maximum length of the papers, and full experimental details must be provided so that the results can be reproduced. Short communications, full research papers and review papers are accepted formats for the preparation of the manuscripts. Gels aims to serve as a reference journal with a focus on gel materials for researchers working in both academia and industry. Therefore, papers demonstrating practical applications of these materials are particularly welcome. Occasionally, invited contributions (i.e., original research and review articles) on emerging issues and high-tech applications of gels are published as special issues.
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