Robust Nanocellulose/Metal-Organic Framework Aerogel Composites: Superior Performance for Static and Continuous Disposal of Chemical Warfare Agent Simulants

Jin Young Seo, Younghan Song, Jung Hyun Lee, Hyungsup Kim, Sangho Cho, Kyung Youl Baek

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Environment-friendly and robust nanocellulose/metal-organic framework aerogel composites were prepared for effective detoxification of chemical warfare agent simulants both in static and dynamic continuous flow systems. For this, we fabricated a durable porous composite of the UiO-66 catalyst and TEMPO-oxidized cellulose nanofibers (TOCN) to examine as a detoxification filter. Even with over 50 wt % UiO-66, the obtained cellulose aerogel composites exhibited high stability without leaking of UiO-66 for 4 weeks under an aqueous state. The cellulose aerogel composite with 54 wt % UiO-66 showed a quite high surface area (483 m2 g-1) despite the presence of TOCN, which caused fast degradation of methyl paraoxon (MPO), a nerve agent simulant, with a 0.7 min half-life in an aqueous solution with N-ethylmorpholine buffer. This aerogel composite was then examined as the detoxification filter in the continuous flow system under a 7.2 mL h-1 flow rate, which surprisingly decomposed 53.7 g of MPO within 1 h with 1 m2 of the effective area.

Original languageEnglish
Pages (from-to)33516-33523
Number of pages8
JournalACS Applied Materials and Interfaces
Volume13
Issue number28
DOIs
Publication statusPublished - 2021 Jul 21

Keywords

  • aerogel composite
  • chemical warfare agents
  • detoxification
  • metal-organic framework
  • TEMPO-oxidized cellulose nanofiber

ASJC Scopus subject areas

  • Materials Science(all)

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