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September 23, 2025The Journal of Physical Chemistry Letters

Unlocking Tetravalent Iron Reactivity at Mildly Acidic pH through Decay Kinetics Technique

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Authors

HSHuixin ShaoNorth China Electric Power UniversityCGChengyu GuState Key Laboratory of Pollution Control and Resource ReuseSWShuchang WangSoutheast University

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Implication

Modified decay kinetics method reveals selective reactivity of tetravalent iron toward contaminants, suggesting its potential in wastewater treatment.

Key Points

  • Tetravalent iron exhibits selective reactivity towards sulfonamides and phenols, advancing wastewater treatment methods.
  • The measured second-order rate constants at pH 3.0 indicate reactions at rates of up to 8.24 × 10^5 M–1 s–1 for sulfonamides.
  • The modified decay kinetics method allows monitoring of tetravalent iron without interference from Fe(III) at 425 nm.
  • Understanding tetravalent iron's behavior in mildly acidic conditions highlights its utility in catalysis and environmental applications.

Cite This Study

Shao et al. (2025) studied this question.

synapsesocial.com/papers/68d4739d31b076d99fa6bb10https://doi.org/10.1021/acs.jpclett.5c02491
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