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author:

Wu, Yourong (Wu, Yourong.) [1] | Dong, Gaolei (Dong, Gaolei.) [2] | Zhang, Yangdong (Zhang, Yangdong.) [3] | Huang, Xi (Huang, Xi.) [4] | Jiang, Xingan (Jiang, Xingan.) [5] | Lin, Mei (Lin, Mei.) [6] | Gao, Min (Gao, Min.) [7] (Scholars:高旻) | Zhao, Chunlin (Zhao, Chunlin.) [8] (Scholars:赵纯林) | Lin, Cong (Lin, Cong.) [9] (Scholars:林枞) | Wu, Xiao (Wu, Xiao.) [10] (Scholars:吴啸)

Indexed by:

Scopus SCIE

Abstract:

The intricate composition of real-world aquatic systems significantly constrains the improved overall performance of powder catalysts, meanwhile their recyclability is inferior to the bulk counterparts (e.g. aerogels). Herein, by loading BiOBr onto g-C3N4 nanosheets and combining them with agarose, an S-scheme heterojunction aerogel (abbreviated as BCA) was synthesized, whose structure was confirmed by the density functional theory calculation. Importantly, the BCA could activate peroxymonosulfate (PMS) under simulated sunlight for degrading multi-pollutant. And the BCA/PMS/Light system efficiently degraded various organic contaminants in aqueous environments, achieving a high degradation rate constant of 0.1503 min- 1 for rhodamine B (RhB), significantly surpassing the performance of CA/PMS/Light (0.0378 min- 1) and BCA/PMS (0.0763 min- 1) systems. Free radical quenching experiment and electron paramagnetic resonance analysis reveal that 1O2, center dot O2-, center dot OH and SO4 center dot- in the BCA/PMS/Light system were pivotal in RhB degradation, with a dominant non-radical mechanism. Additionally, Fukui function analysis pinpointed the primary reaction sites within the RhB molecule. The photocatalytic heterojunction aerogel exhibits outstanding stability, environmental sustainability and versatility, which can guide the development of simulated sunlight-driven PMS activation for multi-pollutant degradation, catering for scalable water treatment applications.

Keyword:

Aerogel heterojunction BiOBr PMS activation Pollutant degradation

Community:

  • [ 1 ] [Wu, Yourong]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 2 ] [Dong, Gaolei]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 3 ] [Zhang, Yangdong]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 4 ] [Huang, Xi]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 5 ] [Gao, Min]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 6 ] [Zhao, Chunlin]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 7 ] [Lin, Cong]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 8 ] [Wu, Xiao]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 9 ] [Jiang, Xingan]Ningbo Univ Technol, Inst Micro Nano Mat & Devices, Ningbo 315211, Peoples R China
  • [ 10 ] [Lin, Mei]Fujian Normal Univ, Coll Environm & Resource Sci, Fuzhou 350007, Fujian, Peoples R China

Reprint 's Address:

  • 吴啸

    [Wu, Xiao]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China;;[Lin, Mei]Fujian Normal Univ, Coll Environm & Resource Sci, Fuzhou 350007, Fujian, Peoples R China

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Source :

JOURNAL OF COLLOID AND INTERFACE SCIENCE

ISSN: 0021-9797

Year: 2025

Volume: 691

9 . 4 0 0

JCR@2023

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: 3

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