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author:

Bu, Z. (Bu, Z..) [1] | Li, J. (Li, J..) [2] | Fang, S. (Fang, S..) [3] | Zhan, Y. (Zhan, Y..) [4] | He, W. (He, W..) [5] | Huang, Y. (Huang, Y..) [6]

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Scopus

Abstract:

The uniform and stable deposition of metal-organic frameworks (MOFs) onto membranes without compromising their performance presents a significant challenge. This study reports the fabrication of a photocatalytic self-cleaning membrane using hydrothermal and photochemical substitution methods. These methods enabled the uniform and stable deposition of β-FeOOH nanorods, m-MIL-100(Fe), and Ag nanoparticles (NPs) not only on the membranes surface but also throughout the interior of polyvinylidene fluoride (PVDF) membrane pores. The synergistic effect of these materials and their uniform and stable distribution within the PVDF membrane resulted in superior photocatalytic efficacy. The membrane's excellent photocatalytic performance facilitated the degradation of most pollutants, ensuring prolonged usage. Unlike other photocatalytic membranes requiring additional cocatalysts, our membrane degraded over 90 % of various dyes without H2O2, demonstrating a greener usage mode and higher photocatalytic efficiency. The valence band (VB) and conduction band (CB) of β-FeOOH nanorods and m-MIL-100(Fe) were calculated, confirming the existence of a type-II heterojunction for the first time. Free radical trapping experiments identified hydroxyl radicals (·OH) as the primary reactive species in the degradation process. This research provides a novel approach to uniformly and stably load MOFs on membranes, enhancing their properties and offering insights into fabricating multifunctional photocatalytic membranes. © 2025 Elsevier B.V.

Keyword:

Green usage mode Mental-organic frameworks Photocatalysis Synergistic effect

Community:

  • [ 1 ] [Bu Z.]College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Li J.]College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Fang S.]College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Zhan Y.]College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [He W.]College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Huang Y.]College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China

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Source :

Colloids and Surfaces A: Physicochemical and Engineering Aspects

ISSN: 0927-7757

Year: 2025

Volume: 718

4 . 9 0 0

JCR@2023

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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