Abatement of clofibric acid by Fenton-like process using iron oxide supported sulfonated-ZrO 2 : Efficient heterogeneous catalysts
Journal
Journal of Water Process Engineering
Journal Volume
26
Pages
92-99
Date Issued
2018
Author(s)
Abstract
Catalytic oxidative degradation and mineralization of emerging contaminant, clofibric acid (CFA) was investigated by iron impregnated sulfonated-ZrO2 catalyst for the first time in Fenton-like process. 4%Fe/sulfonated-ZrO2 exhibited superior performance in achieving a total CFA conversion in an hour and high mineralization efficiency of 57% in 6 h. Beneficially, no leaching of Fe was observed during the process thereby demonstrating the stability of the catalyst. The sulfonation of zirconia has shown a positive effect in this process. Furthermore, the effects of various operating parameters, including initial solution pH, catalyst load, H2O2 concentration, and reaction temperature, were evaluated for the optimization of the process. The possible mechanism of CFA oxidation during Fenton-like process is also proposed based on detected intermediates.
SDGs
Type
journal article