Fenton-mediated thermocatalytic conversion of CO2 to acetic acid by industrial waste-derived magnetite nanoparticles

Abstract

Iron oxide dust, discarded as industrial waste, has been used here to fabricate magnetic iron oxide nanoparticles (Fe₃O₄-NPs). We have proposed the thermo-catalytic reduction of carbon dioxide (CO₂) using Fe₃O₄-NPs in the presence of H₂O₂ to get acetic acid (AcOH) at near ambient conditions (100 °C, 10 bar) with a maximum yield of ∼0.4 M in a batch-reactor. The importance of H₂O₂ can be described as it facilitates the production of higher concentrations of OH˙ and H^+/˙, which consequently supports the synthesis of AcOH.