This study introduces a new and previously unconsidered fast abiotic formation of Mn(IV) oxides. We report photochemically assisted fast abiotic oxidation of Mn2+ (aq) to Mn(IV) (s) by superoxide radicals generated from nitrate photolysis. This photochemical pathway generates randomly stacked layered birnessite (δ-MnO2) nanosheets.
H. Jung, T. S. Chadha, D. Kim, P. Biswas and Y. Jun, Chem. Commun., 2017, 53, 4445 DOI: 10.1039/C7CC00754J
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