A New Method for the Preparation of Fe(Ⅳ) and Comparison with the performance of FeO42-

haoda guo; linhao fan; naidong zhang

Just Accepted

This article has been peer reviewed and accepted for publication. It is in production and has not been edited, so may differ from the final published form.

A New Method for the Preparation of Fe(Ⅳ) and Comparison with the performance of FeO42-

haoda guo, linhao fan, naidong zhang

Abstract

FeO32- acted as a highly effective water-purifying agent and exhibited superior performance compared with FeO42-, the traditional synthesis method of FeO32- requires challenging reaction conditions. This study focused on the environmentally friendly synthesis of green Na2FeO3 crystals using sodium hypochlorite as a medium via a concentration method under depressurization. In an alkaline hypochlorite system, infrared spectroscopy, ultraviolet-visible spectroscopy, X-ray diffraction, and Mössbauer spectroscopy revealed that, under different OH- concentrations and temperatures, hypochlorite can oxidize Fe (III) to FeO32-. Na2FeO3 served as a highly effective water-purifying agent and was superior to K2FeO4 in the treatment of oil-recovery wastewater. Na2FeO3 and K2FeO4 reacted similarly to organic compounds as determined by UV-visible spectroscopy. Additionally, it is less expensive to synthesize Na2FeO3 compared with K2FeO4.

CH24156 Accepted 09 January 2025