September 10, 2025ChemCatChem

Interfacial Hydroxylation of ZnSn(OH)₆/TiO₂ Enhances Charge Separation for Stable and Efficient Photocatalytic Toluene Mineralization

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Toluene mineralization efficiency reached 90.51% under simulated sunlight, showcasing substantial degradation potential.
The band gap of ZnSn(OH)6/TiO2 composites was reduced to 3.10 eV, improving visible light absorption capabilities.
An interfacial charge transfer mechanism effectively suppressed photogenerated electron–hole pair recombination, enhancing stability.
Radical trapping experiments indicated that hydroxyl radicals were key to the photocatalytic activity of the composites.

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This study demonstrates how ZnSn(OH)6 and TiO2 improve toluene degradation, enhancing charge separation and stability.

Tian et al. (2025) studied this question.

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