Magnesium( <scp>ii</scp> )-bicarbonate complexes catalyze the Fenton-like reaction under nearly neutral conditions: kinetics and mechanism
The results reported herein indicate that solutions containing Mg(H<sub>2</sub>O)<sub>6</sub><sup>2+</sup> + HCO<sub>3</sub><sup>-</sup> + H<sub>2</sub>O<sub>2</sub> can replace Fe(H<sub>2</sub>O)<sub>6</sub><sup>2+</sup> + H<sub>2</sub>O<sub>2</sub>, or the use of other transition metal complexes, as catalysts of the Fenton-like processes. The reactive oxidizing intermediate formed in this system is the CO<sub>3</sub>˙<sup>-</sup> anion radical. Detailed experimental and density functional theory (DFT) calculations point out that CO<sub>3</sub>˙<sup>-</sup> is formed <i>via</i> the decomposition of [(H<sub>2</sub>O)<sub>4</sub>Mg<sup>II</sup>(CO<sub>3</sub><sup>2-</sup>)(H<sub>2</sub>O<sub>2</sub>)]. Implications of this new and green, advanced oxidation process are briefly discussed.
Authors
- Virender K. Sharma (ORCID: https://orcid.org/0000-0002-5980-8675)
- Antonio de Lucas (ORCID: https://orcid.org/0000-0001-6351-1594)
- Yael Albo (ORCID: https://orcid.org/0000-0002-9873-0161)
- Prashant Desai (ORCID: https://orcid.org/0000-0002-2493-8218)
- Dalia Gitin
- Dan Meyerstein (ORCID: https://orcid.org/0000-0002-5429-8901)
- Alexander I. Shames (ORCID: https://orcid.org/0000-0002-0574-1911)
- Haya Kornweitz (ORCID: https://orcid.org/0000-0002-3562-0141)
- Tomer Zidki (ORCID: https://orcid.org/0000-0001-5103-6239)
Institutions
- Ben-Gurion University of the Negev (IL)
- University of Miami (US)
- Ariel University (IL)
- Florida Memorial University (US)
Publication Details
- Journal
- Physical Chemistry Chemical Physics
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cp01582k
- Primary Topic
- Advanced oxidation water treatment
- Type
- article
- Field-Weighted Citation Impact
- 0.00