Generation of iron(VII) oxide in aqueous solution, a new oxidant in water treatment

Virender K. Sharma; Aliaksandra Lisouskaya; Tomer Zidki; Gayathri Jeevanandham; Dalya Gitin; Maxim Kolesnikov; Haya Kornwetz; Dan Meyerstein

doi:10.1007/s10311-026-01913-3

Generation of iron(VII) oxide in aqueous solution, a new oxidant in water treatment

Virender K. Sharma
, Aliaksandra Lisouskaya
, Tomer Zidki
, Gayathri Jeevanandham
, Dalya Gitin
, Maxim Kolesnikov
, Haya Kornwetz
, Dan Meyerstein

Department of Chemical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

Current oxidation methods for water treatment are limited due to the presence of recalcitrant contaminants such as pharmaceuticals and per- and polyfluoroalkyl substances, requiring new stronger and safe oxidants. Here we synthesized a novel iron oxide in oxidation state + 7, Fe^VIIO₄⁻, in water by one-electron oxidation of ferrate(VI) by an hydroxyl radical. The kinetics and spectral measurements were collected using a pulse radiolysis technique under mild alkaline condition. Fe^VIIO₄⁻can be produced in microseconds with a visible spectrum maximizing at 680 nm. The formation of Fe^VIIO₄⁻ in water is supported by density-functional theory calculations. The calculated standard redox potential of ~ 1.7 V suggests its potential in treating water efficiently.

Original language	English
Journal	Environmental Chemistry Letters
DOIs	https://doi.org/10.1007/s10311-026-01913-3
State	Accepted/In press - 2026

Keywords

Ferrate
High-valent iron species
Pulse radiolysis
Redox potential
Water treatment

Access to Document

10.1007/s10311-026-01913-3

Cite this

@article{18b8969a052d4ab294b7b6b7e9cb434e,

title = "Generation of iron(VII) oxide in aqueous solution, a new oxidant in water treatment",

abstract = "Current oxidation methods for water treatment are limited due to the presence of recalcitrant contaminants such as pharmaceuticals and per- and polyfluoroalkyl substances, requiring new stronger and safe oxidants. Here we synthesized a novel iron oxide in oxidation state + 7, FeVIIO4−, in water by one-electron oxidation of ferrate(VI) by an hydroxyl radical. The kinetics and spectral measurements were collected using a pulse radiolysis technique under mild alkaline condition. FeVIIO4−can be produced in microseconds with a visible spectrum maximizing at 680 nm. The formation of FeVIIO4− in water is supported by density-functional theory calculations. The calculated standard redox potential of \textasciitilde{} 1.7 V suggests its potential in treating water efficiently.",

keywords = "Ferrate, High-valent iron species, Pulse radiolysis, Redox potential, Water treatment",

author = "Sharma, \{Virender K.\} and Aliaksandra Lisouskaya and Tomer Zidki and Gayathri Jeevanandham and Dalya Gitin and Maxim Kolesnikov and Haya Kornwetz and Dan Meyerstein",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2026.",

year = "2026",

doi = "10.1007/s10311-026-01913-3",

language = "אנגלית",

journal = "Environmental Chemistry Letters",

issn = "1610-3653",

publisher = "Springer Nature",

}

TY - JOUR

T1 - Generation of iron(VII) oxide in aqueous solution, a new oxidant in water treatment

AU - Sharma, Virender K.

AU - Lisouskaya, Aliaksandra

AU - Zidki, Tomer

AU - Jeevanandham, Gayathri

AU - Gitin, Dalya

AU - Kolesnikov, Maxim

AU - Kornwetz, Haya

AU - Meyerstein, Dan

N1 - Publisher Copyright: © The Author(s) 2026.

PY - 2026

Y1 - 2026

N2 - Current oxidation methods for water treatment are limited due to the presence of recalcitrant contaminants such as pharmaceuticals and per- and polyfluoroalkyl substances, requiring new stronger and safe oxidants. Here we synthesized a novel iron oxide in oxidation state + 7, FeVIIO4−, in water by one-electron oxidation of ferrate(VI) by an hydroxyl radical. The kinetics and spectral measurements were collected using a pulse radiolysis technique under mild alkaline condition. FeVIIO4−can be produced in microseconds with a visible spectrum maximizing at 680 nm. The formation of FeVIIO4− in water is supported by density-functional theory calculations. The calculated standard redox potential of ~ 1.7 V suggests its potential in treating water efficiently.

AB - Current oxidation methods for water treatment are limited due to the presence of recalcitrant contaminants such as pharmaceuticals and per- and polyfluoroalkyl substances, requiring new stronger and safe oxidants. Here we synthesized a novel iron oxide in oxidation state + 7, FeVIIO4−, in water by one-electron oxidation of ferrate(VI) by an hydroxyl radical. The kinetics and spectral measurements were collected using a pulse radiolysis technique under mild alkaline condition. FeVIIO4−can be produced in microseconds with a visible spectrum maximizing at 680 nm. The formation of FeVIIO4− in water is supported by density-functional theory calculations. The calculated standard redox potential of ~ 1.7 V suggests its potential in treating water efficiently.

KW - Ferrate

KW - High-valent iron species

KW - Pulse radiolysis

KW - Redox potential

KW - Water treatment

UR - https://www.scopus.com/pages/publications/105041030536

U2 - 10.1007/s10311-026-01913-3

DO - 10.1007/s10311-026-01913-3

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:105041030536

SN - 1610-3653

JO - Environmental Chemistry Letters

JF - Environmental Chemistry Letters

ER -

Generation of iron(VII) oxide in aqueous solution, a new oxidant in water treatment

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this