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Updated: Jun 7, 2025

Light-driven Enzymatic Decarboxylation
Published on: May 22, 2016
Ultrasound-assisted bisphenol AF degradation using in situ generated hydrogen peroxide
1Department of Chemistry, School of Physical and Chemical Sciences, Queen Mary University of London, London, E1 4NS, UK.
Abstract:
Bisphenol AF (BPAF) is degraded through the ultrasound-assisted in situ generation and activation of hydrogen peroxide (H2O2) by the copper(II) catalysed oxidation of hydroxylamine (NH2OH) with dioxygen (O2). Compared to added H2O2, in situ generated H2O2 significantly improves the degradation of BPAF from 46.7% to 94.8% in ∼15 min. The reaction follows a pseudo-first-order kinetic model. This study examines the influence of solution pH, anions, humic acid, and different concentrations of the reactants on BPAF degradation. Mass spectrometry was used to identify the BPAF degradation products, and a degradation pathway is proposed. This work advances the understanding of in situ hydrogen peroxide generation and activation in advanced oxidation (Fenton-like) processes (AOPs).
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