M. Fan, N. Li
Arsenite [As(III)] is much more toxic and difficult to remove than arsenate [As(V)], making the development of an effective removal method for As(III) urgent. This study investigates the oxidation ability of ferrate (Fe(VI)) under various pH conditions, different initial concentrations of As(III), and varying dosages of Fe(VI). Results show that Fe(VI) acts as an effective oxidizer for As(III) particularly under basic conditions. Although theoretical redox analyses suggest that Fe(VI) might perform better under acidic conditions, experimental findings reveal that basic conditions yield better oxidization efficiency due to acid-catalyzed redox reactions with H2O. Furthermore, initial concentrations of As(III) do not significantly influence the oxidation efficiency. The study concludes with the identification of Fe(III) as the final product of the reaction and establishes that the required mole ratio for complete oxidation of As(III) to As(V) under basic conditions is 2:3 for Fe(VI) to As(III).
@article{da91d2a5-5b39-4a30-9db4-460624c0eda7,
title={Chapter 24 Arsenite oxidation by ferrate},
author={M. Fan and N. Li},
year={2026},
language={en}
}TY - JOUR TI - Chapter 24 Arsenite oxidation by ferrate AU - M. Fan AU - N. Li PY - 2026 LA - en ER -
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