ZIF-8/Graphene Oxide Hybrid Membranes as Breathable and Protective Barriers against Chemical Warfare Agents

• DOI: 10.1021/acsami.3c08964
• Publication Date: 2023-08-23T07:25:46Z
• Authors: Kyubo Kim; Heesoo Jung; Kyeong Min Cho
• Keywords: Dimethyl methylphosphonate; Nanomaterials

Personal protective equipment against chemical warfare agents and other toxic chemicals must be protective, breathable, have a low thermal burden. Selectively permeable membranes are promising candidates for such equipment. In this study, hybrid membrane consisting of continuous thin zeolitic imidazolate framework (ZIF)-8 layer on an oxygen-rich small-flake graphene oxide was produced using simple scalable synthesis method. The small intrinsic pores ZIF-8 allow it to selectively separate via size exclusion while permitting water vapor permeate out. ZIF-8/graphene had high selectivity the penetration over nerve agent simulants (ratio dimethyl methylphosphonate transmittance rates ∼312) with rate 3000 g m-2 day-1. This barrier is material next-generation clothing enhanced comfort operability.