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Journal of Nanoparticle Research

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01.01.2018 | Research Paper

Photocatalytic ability of Bi₆Ti₃WO₁₈ nanoparticles with a mix-layered Aurivillius structure

verfasst von: Longqing Mi, Yongyi Feng, Lei Cao, Mingqiang Xue, Chuanxiang Qin, Yanlin Huang, Lin Qin, Hyo Jin Seo

Erschienen in: Journal of Nanoparticle Research | Ausgabe 1/2018

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Abstract

Aurivillius phase layered perovskites Bi₆Ti₃WO₁₈ was prepared by the sol-gel citrate-complexation synthesis. The sample developed into the plate-like nanoparticles with the exposed (001) facets. The phase formation and structure have been verified via X-ray polycrystalline powder diffraction (XRD) Rietveld refinements. The nanoparticles were investigated via the measurements such as FE-SEM, TEM, EDS, and the surface analyses. UV–Vis absorption data revealed that the Aurivillius compound has a direct band characteristic with the band energy of 2.214 eV. The band structure of Bi₆Ti₃WO₁₈ nanoparticles was discussed on the base of the experiments and theoretical calculation. Bi³⁺-containing Aurivillius Bi₆Ti₃WO₁₈ shows efficient photocatalytic degradation for rhodamine B dye (RhB) with the visible light irradiation (λ > 420 nm). Dynamic characteristic of the light-created excitons was measured by the luminescence and decay lifetime. The multivalent properties of W and Ti ions in the Aurivillius-like lattices of Bi₆Ti₃WO₁₈ photocatalyst were discussed.

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Titel: Photocatalytic ability of Bi6Ti3WO18 nanoparticles with a mix-layered Aurivillius structure
verfasst von: Longqing Mi
Yongyi Feng
Lei Cao
Mingqiang Xue
Chuanxiang Qin
Yanlin Huang
Lin Qin
Hyo Jin Seo
Publikationsdatum: 01.01.2018
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 1/2018
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-017-4101-6

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