Fentonlike process for the synergistic degradation of bisphenol A in water by H2O2 and Cu-π electrostatic forces

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Journal of Guangzhou University(Natural Science Edition) ›› 2024, Vol. 23 ›› Issue (6) : 95-101.

Fentonlike process for the synergistic degradation of bisphenol A in water by H2O2 and Cu-π electrostatic forces

  • PENG Dan-dan,LIAO Wei-xiang,HU Chun
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Abstract

Abstract: Endocrine disruptors are difficult to remove from wastewater due to their stable chemical structure, and their continuous release in the aqueous environment remains a challenge of great concern in water treatment. In this paper, a copper-doped graphene like catalyst ( Cu@ IANC) synthesized from algae was constructed with Cu-centered electron-rich regions and Cu-centered electron-poor regions. In the reactive aqueous solution containing bisphenol A ( BPA) and 10 mM H2O2 , the degradation of BPA by Cu@ IANC exhibited excellent activity and stability. In the reactive aqueous solution, BPA was complexed in the electron-poor region on the Cu@ IANC surface by π-π and hydrogen bonding, while H2O2 was adsorbed in the electron-rich region on the Cu@ IANC surface, resulting in the formation of a multipoint adsorption pattern on the Cu@ IANC surface. In this adsorption mode, BPA was electronically delocalized by the Cu-π electrostatic force and captured by H2O2 to generate hydroxyl radicals ( · OH) . The generated · OH was free in aqueous solution to attack BPA and its intermediates. The synergistic interaction of H2O2 and Cu-π electrostatic forces over biochar-based Fen- ton-like catalysts is a low-cost option for the effective degradation of environmental endocrine.

Key words

endocrine disruptors / water treatment technology / dual-reaction center / biochar-based catalyst / Cu-π electrostatic forces

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Fentonlike process for the synergistic degradation of bisphenol A in water by H2O2 and Cu-π electrostatic forces. Journal of Guangzhou University(Natural Science Edition). 2024, 23(6): 95-101

References

[1] Liu J G, Yang W. Water sustainability for China and beyondJ]. Science, 2012, 337(6095): 649-650.
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