Enhanced catalytic oxidation of naproxen via activation of peroxymonosulfate by Fe-based metal–organic framework aerogels functionalized with Ag nanoparticles

Byungjun Cha, Yeonji Yea, Keunyoung Yun, Taeyeon Kim, Hyeonjeong Kim, Yeomin Yoon, Sewoon Kim, Chang Min Park

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

In this study, Ag3PO4 and Fe-based metal–organic frameworks (MOFs)-functionalized three-dimensional (3D) porous gelatin aerogels (Ag/Fe@GMA) were fabricated and used as adsorbents and catalysts for the activation of peroxymonosulfate (PMS) for naproxen (NPX) removal from water. The morphology, crystallinity, surface functional groups, and surface chemical element compositions of the fabricated Ag/Fe@GMA was evaluated using various analytical techniques. Our results showed that as an adsorbent, Ag/Fe@GMA showed a 18.0 % higher NPX adsorption capacity compared with the pristine aerogels. This can be attributed to the well-embedded Ag3PO4 and MOFs, indicating a stronger interaction between functionalized aerogels and NPX. After adsorption, 99.9 % of total NPX removal was achieved within 15 min by activating PMS and effectively generating OH and SO4 in water. The PMS/Ag/Fe@GMA aerogel system also showed high removal performance for rhodamine B (99.5 %) and tetracycline (93.7 %). Moreover, the Ag/Fe@GMA aerogels showed excellent reusability to achieve 95.7 % NPX removal efficiency after six times of recycling. This study revealed that the Ag/Fe@GMA aerogels had good potential for PMS activation and NPX removal. In particular, as an alternative to powdery materials, 3D shape of Ag/Fe@GMA with excellent reusability facilitates its application in the treatment of water contaminated with organic contaminants.

Original languageEnglish
Article number131847
JournalJournal of Hazardous Materials
Volume458
DOIs
StatePublished - 15 Sep 2023

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

Keywords

  • AgPO
  • Gelatin aerogel
  • Metal–organic frameworks
  • Naproxen
  • Peroxymonosulfate

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