Department of Chemistry , Pukyong National University , Busan 48513 , Republic of Korea.
Agency for Defense Development , Yuseong P.O. Box 35, Daejeon 34186 , Republic of Korea.
ACS Appl Mater Interfaces. 2018 Nov 28;10(47):40651-40660. doi: 10.1021/acsami.8b15362. Epub 2018 Nov 8.
Sulfur mustard gas, also called HD, is one of the main chemical warfare agents and has claimed thousands of lives and left many more contaminated. The development of functional materials to promptly capture and detoxify sulfur mustard within a few minutes is extremely important to save the lives of the affected people. This has motivated us to explore excellent detoxification systems that can be deployed in the field to rapidly capture and hydrolyze mustard gas in a short time. To that end, we present a silver-ion-exchanged zeolite Y [(Ag) @Y, n = 5, 13, 21, 32, 43, and 55] that can rapidly capture mustard gas and its simulant (2-chloroethyl ethyl sulfide, CEES) in ambient conditions to enable the prompt hydrolysis of the CEES captured in its nanopores. The capture and hydrolysis ability of Ag@Y positively correlated with its number of Ag ions. In addition, 70% of CEES (2.5 μL in 1 mL) was captured by (Ag)@Y within 20 min at 25 °C in ambient conditions. Moreover, 100% CEES (2.5 μL in 1 mL aqueous ethanol cosolvent) was hydrolyzed in 1 min at 25 °C. The efficiency of Ag@Y in capturing and hydrolyzing CEES as well as mustard gas is thus a system with high detoxification efficiency for this dangerous chemical warfare agent.
硫芥气，又称 HD，是主要的化学战剂之一，已夺走了数千人的生命，并使更多人受到污染。开发能够在数分钟内迅速捕获和解毒硫芥气的功能材料对于挽救受影响人群的生命至关重要。这促使我们探索出色的解毒系统，可以在现场部署，以便在短时间内迅速捕获和水解芥子气。为此，我们提出了一种银离子交换沸石 Y [(Ag)@Y，n = 5、13、21、32、43 和 55]，它可以在环境条件下迅速捕获芥子气及其模拟物（2-氯乙基乙基硫醚，CEES），从而能够迅速水解在其纳米孔中捕获的 CEES。Ag@Y 的捕获和水解能力与其银离子数量呈正相关。此外，在 25°C 的环境条件下，（Ag）@Y 在 20 分钟内即可捕获 2.5 μL 的 CEES（1 mL 中）。此外，在 25°C 下，100%的 CEES（1 mL 水醇共溶剂中的 2.5 μL）在 1 分钟内水解。因此，Ag@Y 捕获和水解 CEES 以及芥子气的效率是一种对这种危险化学战剂具有高效解毒能力的系统。
