Manel Machreki (Avtor), Artem V. Badasyan (Avtor), Dušan Žigon (Avtor), Georgi Tyuliev (Avtor), Saim Emin (Avtor)

Povzetek

Transformation of biomass into value-added chemicals and fuels is considered an upcycling process that is beneficial to resource utilization. In this study, we used a photoelectrochemical (PEC) approach for selective oxidation of propane-1,2,3-triol to dihydroxyacetone (DHA) with high efficiency and selectivity (99%) using Sn-doped -Fe2O3 (Sn:-Fe2O3) thin films with intrinsic oxygen vacancies (OVs). DHA is an essential compound utilized in the cosmetic industry. In a similar manner, we conducted the first study of the PEC oxidation of 4-hydroxy-3-methoxybenzyl alcohol under visible light. A kinetic model has been formulated and solved to find the time-dependent generation of the products. Electrochemical impedance analyses and PEC experiments demonstrated a correlation between the concentration of molecules and the catalytic performance of Sn:-Fe2O3. Studies using scavengers indicate that the photogenerated holes (h+), singlet oxygen (1O2), hydroxyl radicals (•OH), and superoxide radicals (•O2–) play key roles in achieving high PEC activity. This work provided a new perspective on designing efficient PEC systems for biomass conversion into energy and value-added chemicals.

Ključne besede

Sn-doped alpha-Fe2O3;oxygen vacancies;photoelectrochemical oxidation;propane-1,2,3-triol;4-hydroxy-3-methoxybenzyl alcohol;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UNG - Univerza v Novi Gorici
UDK: 54
COBISS: 221378563 Povezava se bo odprla v novem oknu
ISSN: 2213-3437
Št. ogledov: 79
Št. prenosov: 0
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Strani: str. 1-9
Letnik: ǂVol. ǂ13
Zvezek: ǂissue ǂ1, [article no.] 115363
Čas izdaje: Feb. 2025
DOI: 10.1016/j.jece.2025.115363
ID: 25646395