Anchoring lead-free halide Cs3Bi2I9 perovskite on UV100–TiO2 for enhanced photocatalytic performance

Bianca Maria Bresolin, Narmina O. Balayeva, Luis I. Granone, Ralf Dillert, Detlef W. Bahnemann, Mika Sillanpää

Результат исследований: Научные публикации в периодических изданияхстатья

Выдержка

Halide perovskites have shown great potential in photocatalytic applications. In order to enhance the charge transportation efficiency, the chemical stability, and the light absorption ability, we anchored a lead-free halide perovskite (Cs3Bi2I9) on UV100–TiO2 nanoparticles to build a visible-light active photocatalysts. The as-prepared material exhibited excellent stability and a remarkable yield for photocatalytic oxidation of methanol to formaldehyde under visible light irradiation. The photocatalyst was characterized using X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Transmission electron microscopy, X-ray photoelectron spectroscopy, ultraviolet–visible diffuse reflectance spectroscopy, Brunauer–Emmett–Teller surface area measurement, and photoelectrochemical properties. The analyses confirmed a remarkable improvement of visible-light absorption, a favorable decrease in the recombination of photoinduced charge carriers, and a suitable bandgap for visible-light photocatalytic applications. Recycle experiments showed that the composites still presented significant photocatalytic activity after three successive cycles. A possible underlying mechanism of the composite accounting for the enhanced photocatalytic activity under visible light irradiation was proposed. Our study aims to open new possibilities of using lead-free halide perovskites for photocatalytic applications.

Язык оригиналаанглийский
Номер статьи110214
ЖурналSolar Energy Materials and Solar Cells
Том204
Ранняя дата в режиме онлайн24 окт 2019
DOI
СостояниеЭлектронная публикация перед печатью - 24 окт 2019

Отпечаток

Perovskite
Lead
Photocatalysts
Light absorption
Irradiation
Transportation charges
Chemical stability
Composite materials
Charge carriers
Formaldehyde
Methanol
Energy gap
X ray photoelectron spectroscopy
Spectroscopy
Nanoparticles
Transmission electron microscopy
X ray diffraction
Oxidation
Scanning electron microscopy
perovskite

Предметные области Scopus

  • Электроника, оптика и магнитные материалы
  • Возобновляемые источники энергии и окружающая среда
  • Поверхности, слои и пленки

Цитировать

Bresolin, B. M., Balayeva, N. O., Granone, L. I., Dillert, R., Bahnemann, D. W., & Sillanpää, M. (2020). Anchoring lead-free halide Cs3Bi2I9 perovskite on UV100–TiO2 for enhanced photocatalytic performance. Solar Energy Materials and Solar Cells, 204, [110214]. https://doi.org/10.1016/j.solmat.2019.110214
Bresolin, Bianca Maria ; Balayeva, Narmina O. ; Granone, Luis I. ; Dillert, Ralf ; Bahnemann, Detlef W. ; Sillanpää, Mika. / Anchoring lead-free halide Cs3Bi2I9 perovskite on UV100–TiO2 for enhanced photocatalytic performance. В: Solar Energy Materials and Solar Cells. 2020 ; Том 204.
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abstract = "Halide perovskites have shown great potential in photocatalytic applications. In order to enhance the charge transportation efficiency, the chemical stability, and the light absorption ability, we anchored a lead-free halide perovskite (Cs3Bi2I9) on UV100–TiO2 nanoparticles to build a visible-light active photocatalysts. The as-prepared material exhibited excellent stability and a remarkable yield for photocatalytic oxidation of methanol to formaldehyde under visible light irradiation. The photocatalyst was characterized using X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Transmission electron microscopy, X-ray photoelectron spectroscopy, ultraviolet–visible diffuse reflectance spectroscopy, Brunauer–Emmett–Teller surface area measurement, and photoelectrochemical properties. The analyses confirmed a remarkable improvement of visible-light absorption, a favorable decrease in the recombination of photoinduced charge carriers, and a suitable bandgap for visible-light photocatalytic applications. Recycle experiments showed that the composites still presented significant photocatalytic activity after three successive cycles. A possible underlying mechanism of the composite accounting for the enhanced photocatalytic activity under visible light irradiation was proposed. Our study aims to open new possibilities of using lead-free halide perovskites for photocatalytic applications.",
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Anchoring lead-free halide Cs3Bi2I9 perovskite on UV100–TiO2 for enhanced photocatalytic performance. / Bresolin, Bianca Maria; Balayeva, Narmina O.; Granone, Luis I.; Dillert, Ralf; Bahnemann, Detlef W.; Sillanpää, Mika.

В: Solar Energy Materials and Solar Cells, Том 204, 110214, 01.2020.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Anchoring lead-free halide Cs3Bi2I9 perovskite on UV100–TiO2 for enhanced photocatalytic performance

AU - Bresolin, Bianca Maria

AU - Balayeva, Narmina O.

AU - Granone, Luis I.

AU - Dillert, Ralf

AU - Bahnemann, Detlef W.

AU - Sillanpää, Mika

PY - 2019/10/24

Y1 - 2019/10/24

N2 - Halide perovskites have shown great potential in photocatalytic applications. In order to enhance the charge transportation efficiency, the chemical stability, and the light absorption ability, we anchored a lead-free halide perovskite (Cs3Bi2I9) on UV100–TiO2 nanoparticles to build a visible-light active photocatalysts. The as-prepared material exhibited excellent stability and a remarkable yield for photocatalytic oxidation of methanol to formaldehyde under visible light irradiation. The photocatalyst was characterized using X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Transmission electron microscopy, X-ray photoelectron spectroscopy, ultraviolet–visible diffuse reflectance spectroscopy, Brunauer–Emmett–Teller surface area measurement, and photoelectrochemical properties. The analyses confirmed a remarkable improvement of visible-light absorption, a favorable decrease in the recombination of photoinduced charge carriers, and a suitable bandgap for visible-light photocatalytic applications. Recycle experiments showed that the composites still presented significant photocatalytic activity after three successive cycles. A possible underlying mechanism of the composite accounting for the enhanced photocatalytic activity under visible light irradiation was proposed. Our study aims to open new possibilities of using lead-free halide perovskites for photocatalytic applications.

AB - Halide perovskites have shown great potential in photocatalytic applications. In order to enhance the charge transportation efficiency, the chemical stability, and the light absorption ability, we anchored a lead-free halide perovskite (Cs3Bi2I9) on UV100–TiO2 nanoparticles to build a visible-light active photocatalysts. The as-prepared material exhibited excellent stability and a remarkable yield for photocatalytic oxidation of methanol to formaldehyde under visible light irradiation. The photocatalyst was characterized using X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Transmission electron microscopy, X-ray photoelectron spectroscopy, ultraviolet–visible diffuse reflectance spectroscopy, Brunauer–Emmett–Teller surface area measurement, and photoelectrochemical properties. The analyses confirmed a remarkable improvement of visible-light absorption, a favorable decrease in the recombination of photoinduced charge carriers, and a suitable bandgap for visible-light photocatalytic applications. Recycle experiments showed that the composites still presented significant photocatalytic activity after three successive cycles. A possible underlying mechanism of the composite accounting for the enhanced photocatalytic activity under visible light irradiation was proposed. Our study aims to open new possibilities of using lead-free halide perovskites for photocatalytic applications.

KW - Heterostructure

KW - Perovskite

KW - Photocatalysis

KW - Titanium dioxide

KW - Visible light

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