Efficient Degradation of Methylene Blue by Heterogeneous Fenton Reaction Using FeWO4 Nanocatalysts
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00142259" target="_blank" >RIV/00216224:14310/25:00142259 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s41742-025-00905-5" target="_blank" >https://link.springer.com/article/10.1007/s41742-025-00905-5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s41742-025-00905-5" target="_blank" >10.1007/s41742-025-00905-5</a>
Alternative languages
Result language
angličtina
Original language name
Efficient Degradation of Methylene Blue by Heterogeneous Fenton Reaction Using FeWO4 Nanocatalysts
Original language description
Iron-based catalysts show great promise for Fenton reactions in water treatment applications; however, the predominance of Fe(III) species in most iron catalysts limits their scalability. Although iron tungstate oxide (FeWO4) is commonly employed as a photocatalyst for environmental treatment, its role as a heterogeneous catalyst containing majority of Fe(II) species for the Fenton reaction under dark conditions has not yet been explored. Herein, FeWO4 was synthesized through a straightforward hydrothermal process, achieving a high methylene blue degradation efficiency of 96.1% in the presence of hydrogen peroxide (H2O2) within 30 min. The large surface area of FeWO4 enhanced the availability of Fe(II) active sites for methylene blue degradation, while its magnetic properties enabled convenient separation and recycling of the nanoparticles. Mechanistic investigations indicated that the formation of Fe(IV), likely generated through interactions between Fe(II) and H2O2 on the FeWO4 surface, played a crucial role in the degradation process. Analysis of the electrospray ionization-mass spectrometry suggested the formation of twelve degradation byproducts. The methylene blue degradation efficiency remained stable over six repeated cycles and was minimally impacted by the presence of inorganic anions and humic acid in the water. X-ray diffraction analysis verified that the crystal structure of FeWO4 was preserved post-reaction, while inductively coupled plasma optical emission spectroscopy indicated minimal iron leaching, collectively affirming the catalyst's stability. Consequently, this study introduces novel catalysts for water remediation via Fenton reactions, expanding the potential for advanced treatment approaches.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20700 - Environmental engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH
ISSN
1735-6865
e-ISSN
2008-2304
Volume of the periodical
19
Issue of the periodical within the volume
6
Country of publishing house
CH - SWITZERLAND
Number of pages
14
Pages from-to
1-14
UT code for WoS article
001574651300001
EID of the result in the Scopus database
2-s2.0-105016745125