针对神经毒剂和起泡剂模拟物的双功能解毒纳米织物,ACS Applied Materials & Interfaces

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针对神经毒剂和起泡剂模拟物的双功能解毒纳米织物
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2023-01-03 , DOI: 10.1021/acsami.2c19039
Ting Wu ₁ , Feng Qiu ₁ , Ran Xu ₁ , Qi Zhao ₁ , Longfei Guo ₁ , Dairong Chen ₁ , Cheng Li ₁ , Xiuling Jiao ₁

Affiliation

开发能够同时对多种化学战剂（CWA）进行解毒的功能材料对于应对现实世界中CWA使用的不确定性具有重要意义。尽管已经报道了许多能够解毒CWAs的催化剂，但仍然缺乏有效的手段将这些催化活性材料整合到实际的纤维/织物上以实现对多种CWAs共存的有效保护。在这项工作中，通过静电纺丝和原位溶剂热反应的结合，PAN@Zr(OH) ₄@MOF-808 纳米纤维膜用于神经毒剂和起泡剂模拟物磷酸二甲酯 (DMNP) 和 2-氯乙基乙基硫醚 (CEES) 的解毒。在MOF-808组分的催化作用下，实现了半衰期短至1.19 min的DMNP水解。_{同时，通过MOF-808和Zr(OH) 4}组分在环境条件下的吸附和催化，在12小时内获得了89.3%的CEES去除率。_{与裸露的 PAN 和 PAN@Zr(OH) 4}相比， PAN@Zr(OH) ₄ @MOF-808 纳米纤维膜对 CEES 也表现出优异的阻断效果纳米纤维膜。对 DMNP 和 CEES 的同时保护表明对这两种模拟物的有效抑制至少持续 2 小时。该制备方法还赋予了组分之间本质上良好的界面粘附力，有助于 PAN@Zr(OH) ₄ @MOF-808 纳米纤维膜具有出色的回收稳定性。因此，所制备的复合纳米织物具有巨大的应用潜力，为构建广谱防护解毒材料提供了新思路。

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Dual-Function Detoxifying Nanofabrics against Nerve Agent and Blistering Agent Simulants

The development of functional materials that can detoxify multiple chemical warfare agents (CWAs) at the same time is of great significance to cope with the uncertainty of CWA use in real-world situations. Although many catalysts capable of detoxifying CWAs have been reported, there is still a lack of effective means to integrate these catalytic-active materials on practical fibers/fabrics to achieve effective protection against coexistence of a variety of CWAs. In this work, by a combination of electrospinning and in situ solvothermal reaction, PAN@Zr(OH)₄@MOF-808 nanofiber membranes were prepared for detoxification of both nerve agent and blistering agent simulants dimethyl 4-nitrophenyl phosphate (DMNP) and 2-chloroethyl ethyl sulfide (CEES). Under the catalytic effect of the MOF-808 component, DMNP hydrolysis with a half-life as short as 1.19 min was achieved. Meanwhile, an 89.3% CEES removal rate was obtained within 12 h by adsorption and catalysis of MOF-808 and Zr(OH)₄ components at ambient conditions, respectively. PAN@Zr(OH)₄@MOF-808 nanofiber membranes also showed a superior blocking effect on CEES compared to bare PAN and PAN@Zr(OH)₄ nanofiber membranes. Simultaneous protection against DMNP and CEES showed effective inhibition of both simulants for at least 2 h. The preparation method also imparted intrinsically good interfacial adhesion between the components, contributing to the excellent recycling stability of PAN@Zr(OH)₄@MOF-808 nanofiber membranes. Therefore, the prepared composite nanofabrics have great application potential, which provides a new idea for the construction of broad-spectrum protective detoxification materials.

更新日期：2023-01-03

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