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High Energy Ball-Milling Synthesis of Nanostructured Ag-Doped and BiVO 4 -Based Photocatalysts

Abstract : Nanostructured composites based on plasmonic Ag metal nanoclusters with monoclinc-BiVO4 nanoparticles were prepared by high energy ball milling technique. The agglomerated morphology with a spherical shape of 50–100 nm sized BiVO4 particles associated with homogeneous distribution of 5–10 nm Ag clusters significantly enhanced the photocatalytic activity for the degradation of acid blue dyes. The Ag doping concentration with BiVO4 was optimized at 3 at. % leading to almost 10 folds faster photocatalytic degradation rate as compared to pristine form. Thus, Ag doped BiVO4 nanocomposites show efficient visible light driven photocatalytic activity due to charge distribution at the semiconducting-metal interfaces from band bending and the involvement of a radiation field enhanced by plasmon resonance effects at the surfaces of Ag-clusters.
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Contributeur : Sandrine Coste Connectez-vous pour contacter le contributeur
Soumis le : lundi 3 juin 2019 - 16:52:09
Dernière modification le : lundi 8 août 2022 - 17:38:05




Victor Ishrayelu Merupo, Subramaniam Velumani, Goldie Oza, Mohamed Tabellout, Monserrat Bizarro, et al.. High Energy Ball-Milling Synthesis of Nanostructured Ag-Doped and BiVO 4 -Based Photocatalysts. ChemistrySelect, Wiley, 2016, 1 (6), pp.1278-1286. ⟨10.1002/slct.201600090⟩. ⟨hal-02146231⟩



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