Solar-driven degradation of methyl orange over polyaniline/montmorillonite nanocomposite photocatalysts - Université de Lille
Article Dans Une Revue Research on Chemical Intermediates Année : 2024

Solar-driven degradation of methyl orange over polyaniline/montmorillonite nanocomposite photocatalysts

Résumé

The photocatalytic degradation of methyl orange has been studied under visible light. The combination of polyaniline and montmorillonite doped by cobalt and nickel cations enhanced the photocatalytic activity compared to pristine polyaniline. Kinetic measurements have been tentatively explained on the basis of their composition, electronic structures, structural and textural properties. Separate experiments performed on doped montmorillonites show weak performances, reflecting their insulating behaviour, altered by diffusion limitations. A pseudo-first order agrees with a weak methyl orange adsorption. More open porosity of composite materials led to improved efficiency. Their superiority compared to doped montmorillonites has been preferentially related to surface heterogeneity, stronger methyl orange adsorption and lower band gap energy.

Domaines

Chimie
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Dates et versions

hal-04601645 , version 1 (05-06-2024)

Identifiants

Citer

Mohammed El Amine Siali, Madani Ghelamallah, Pascal Granger, Nouria Bouchikhi. Solar-driven degradation of methyl orange over polyaniline/montmorillonite nanocomposite photocatalysts. Research on Chemical Intermediates, 2024, Research on Chemical Intermediates, -, ⟨10.1007/s11164-024-05272-y⟩. ⟨hal-04601645⟩
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