Tungsten-induced oxygen vacancy in MOF-derived MnO2@carbon for solar-driven photothermal oxidation of formaldehyde

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F25%3A00641374" target="_blank" >RIV/68145535:_____/25:00641374 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.cej.2025.169913" target="_blank" >https://doi.org/10.1016/j.cej.2025.169913</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2025.169913" target="_blank" >10.1016/j.cej.2025.169913</a>

Result language

angličtina

Original language name

Tungsten-induced oxygen vacancy in MOF-derived MnO2@carbon for solar-driven photothermal oxidation of formaldehyde

Original language description

Formaldehyde is a major indoor pollutant that has attracted significant attention owing to its adverse effects, motivating extensive research efforts toward effective removal strategies. In this study, Mn-MIL-100 was employed as the precursor to synthesize manganese dioxide (MnO2), an abundant and cost-effective catalyst known for its efficiency in pollutant degradation. To enhance its catalytic performance, MnO2 was doped with tungsten (W) to optimize its morphology, surface area, electronic structure, and charge-transfer properties. These enhancements increased the availability of active sites and improved the photothermal catalytic performance of MnO2 for formaldehyde removal. The synthesized W-doped MnO2@carbon efficiently absorbed full-spectrum solar energy and converted light energy into thermal energy through synergistic photothermal effects, thereby enhancing catalytic efficiency. The findings demonstrate that MnO2 doped with 0.5 % tungsten exhibited optimal catalytic activity, removing 95 % of formaldehyde after 2 h of simulated sunlight exposure and reaching approximately the same removal efficiency within 1 h under combined light and thermal conditions at 60 °C. The high formaldehyde removal efficiency was attributed to the photothermal effects of nanographitic carbon and an increased amount of oxygen vacancies and enhanced electron density resulting from tungsten doping. This method effectively reduces energy consumption by converting light into heat energy, highlighting its significant potential for photothermal applications in pollutant abatement.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

1873-3212

Volume of the periodical

Volume 525

Issue of the periodical within the volume

December 2025

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

169913

UT code for WoS article

001616140500007

EID of the result in the Scopus database

2-s2.0-105020378482