Demonstration of High Detoxification Efficiency of Glassy Polymer–Metal Hydroxide Composites toward Chemical Warfare Agent Simulants
Demonstration of High Detoxification Efficiency of Glassy Polymer–Metal Hydroxide Composites toward Chemical Warfare Agent Simulants
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玻璃状聚合物-金属氢氧化物复合材料对化学战剂模拟物的高解毒效率的演示
DOI：
10.1021/acsapm.3c00918
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发表时间：
2023
影响因子：
5
通讯作者：
Rezaei, Fateme
中科院分区：
文献类型：
--
作者：
Aina, Peter O.;Mondal, Sukanta K.;Costain, Joshua;Rownaghi, Ali A.;Rezaei, Fateme
设计和开发能够以快速解毒速度有效捕获和破坏有毒化学物质的聚合物复合材料，对于保护军队、急救人员和平民具有重要意义。本文报道了氢氧化锆(Zr(OH)4)掺杂的Ultem、Matrimid和PIM-1复合材料的合成和评价，用于对G型毒性神经毒剂二甲基苯基膦酸二甲酯(DMNP)的解毒。为了保持均匀，在聚合物中加入了3种不同含量(8、20、30wt%)的Zr(OH)4，并制备了复合材料薄膜，用于后续的水解试验。结果表明，随着氢氧化锆负载量的增加，三种聚合物的水解率和DMNP转化率都有所提高。随着担载量的增加，PIM-1的比表面积和孔隙率减小，但30%-Zr(OH)4@PIM-1的∼转化率在2 h内达到100%，室温下的水解率为5.5×10-3μ/S。实验还发现，在60℃时，30%-Zr(OH)4@PIM-1的转化率可达4.9moL/S，并且几乎在瞬间(5μS以内)实现了100%的转化率，大大提高了催化剂的性能。我们的发现表明，与之前报道的聚合物-金属氢氧化物复合材料相比，这类材料在有毒气体的解毒方面有了实质性的改进。
The design and development of polymeric composites that can effectively capture and destruct toxic chemicals with a fast detoxification rate is of high importance for protecting the military, first responders, and civilians. Here we report the synthesis and assessment of zirconium hydroxide (Zr(OH)4)-incorporated Ultem, Matrimid, and PIM-1 composites for detoxification of dimethyl 4-nitrophenylphosphonate (DMNP), as a type G toxic nerve agent simulant. Maintaining homogeneity, three different loadings (8, 20, 30 wt %) of Zr(OH)4were incorporated into the polymers, and the thin films of composite materials were developed for subsequent hydrolysis tests. Our results indicated that increasing the Zr(OH)4loading enhances the hydrolysis rate and the amount of DMNP converted for all three polymers. While the surface area and porosity of PIM-1 reduced upon increasing Zr(OH)4loading, 30%-Zr(OH)4@PIM-1 was found to be the best performing material to achieve ∼100% conversion in 2 h with a hydrolysis rate of 5.5 × 10–3μmol/s at room temperature. It was also observed that the performance of 30%-Zr(OH)4@PIM-1 is drastically improved at 60 °C by exhibiting a conversion rate of 4.9 μmol/s, while achieving 100% conversion almost instantaneously (within 5 s). Our findings represent a substantial improvement of this class of materials over previously reported polymer-metalhydroxide composites toward the detoxification of toxic gases.
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影响因子：
3.7
作者：
Chen, Haoyuan;Liao, Peilin;Snurr, Randall Q.
通讯作者：
Snurr, Randall Q.
影响因子：
5.5
作者：
Mason, Christopher R.;Maynard-Atem, Louise;Jansen, Johannes C.
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Jansen, Johannes C.
有机磷神经毒剂的环境暴露。
影响因子：
4.3
作者：
S. Vučinić;B. Antonijević;A. Tsatsakis;Loukia Vassilopoulou;A. Docea;A. Nosyrev;B. Izotov;H. Thiermann;N. Drakoulis;D. Brkić
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影响因子：
3.9
作者：
Robert B. Balow;M. McEntee;I. Schweigert;Seokmin Jeon;G. Peterson;P. Pehrsson
通讯作者：
P. Pehrsson
影响因子：
4.9
作者：
Okada, Keisuke;Nandi, Mahasweta;Uyama, Hiroshi
通讯作者：
Uyama, Hiroshi