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Updated: Sep 27, 2026

Light-driven Enzymatic Decarboxylation
Published on: May 22, 2016
The reaction mechanism of catalytic oxidation with hydrogen peroxide and ozone in aqueous solution
1Department of Environment Science and Engineering, Kwangju Institute of Science and Technology (K-JIST), Oryong-dong, Puk-gu, Kwangju 500-712, South Korea.
Abstract:
The sorption and catalytic oxidation of model compounds (pCBA and phenanthrene) and NOM on FeOOH were investigated using hydrogen peroxide and ozone, respectively. After oxidation with ozone, the hydrophobic, transphilic, and hydrophilic NOM fractions were isolated using XAD-8 and -4 resins to analyze the reaction characteristics. The sorption of pCBA was strongly dependent upon the pH, but phenanthrene exhibited a sorption behavior that was independent of the pH. In the case of NOM, the hydrophobic portion showed higher sorption affinity than hydrophilic and transphilic at pH 7.2. The concentrations of model compounds and oxidants were measured during the oxidations and the efficiency was compared for tests done with ozone alone and those using catalytic ozonation. Through the comparison of the sorption and decomposition of the model compounds, along with the effects of bicarbonate addition, mechanisms for catalytic oxidation with hydrogen peroxide or ozone were proposed, respectively.
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