Catalytic wet air oxidation of high BPA concentration over iron-based catalyst supported on orthophosphate - Université de Poitiers Access content directly
Journal Articles Environmental Science and Pollution Research Year : 2020

Catalytic wet air oxidation of high BPA concentration over iron-based catalyst supported on orthophosphate

Abstract

The catalytic performance of Fe supported on nickel phosphate (NiP) was evaluated for the removal of bisphenol A (BPA) by catalytic wet air oxidation (CWAO) at 140 °C and 25 bar of pure oxygen pressure. The prepared NiP and Fe/NiP materials were fully characterized by XRD, N2-physisorption, H2-TPR, TEM, and ICP analysis. Iron (Fe/NiP) impregnation of NiP support enhanced the BPA removal efficiency from 37.0 to 99.6% when CWAO was performed. This catalyst was highly stable given the operating conditions of acidic medium, high temperature, and high pressure. The Fe/NiP catalyst showed an outstanding catalytic activity for oxidation of BPA, achieving almost complete removal of BPA in 180 min at a concentration of 300 mg/L, using 4 g/L of Fe/NiP. No iron leaching was detected after the CWAO of BPA. The stability of Fe/NiP was performed over three consecutive cycles, noting that BPA conversion was not affected and iron leaching was negligible. Therefore, this catalyst (Fe/NiP) could be considered as an innocuous and effective long-lasting catalyst for the oxidation of harmful organic molecules
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Dates and versions

hal-03533602 , version 1 (22-03-2023)

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Fatiha Kaissouni, Rachid Brahmi, Mohamed Zbair, Gwendoline Lafaye, Zouhair El Assal, et al.. Catalytic wet air oxidation of high BPA concentration over iron-based catalyst supported on orthophosphate. Environmental Science and Pollution Research, 2020, 27 (26), pp.32533-32543. ⟨10.1007/s11356-020-09176-3⟩. ⟨hal-03533602⟩
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