Visible-light photocatalytic performances of TiO<sub>2</sub>nanobelts decorated with iron oxide nanocrystals

Chaguetmi, Samiha; Sobti, N.; Decorse, Philippe; Mouton, Ludovic; Nowak, Sophie; Mammeri, Fayna; Achour, S.; Ammar, Souad

doi:10.1039/c6ra24415g

Cited by 12 publications

(2 citation statements)

References 56 publications

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“…Various formations of n-n or n-p heterojunction structures have been studied to promote solar water splitting in recent years. The commonly used narrow band gap semiconductors for n-n heterojunction structures include WO 3 , Fe 2 O 3 , , ZnCo 2 O 4 , and so on. That could enhance the solar light absorption and the PEC property .…”

Section: Introductionmentioning

confidence: 99%

Enhanced Charge Separation and Transfer by BiVO₄ Heterojunction and N-Doped for TiO₂ Nanotubes during Photoelectrochemical Water Splitting

Fu,

Lian,

Lin

et al. 2023

ACS Appl. Energy Mater.

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Photoelectrochemical water splitting for hydrogen and oxygen evolution by a TiO 2 photoanode is a promising strategy for clean energy generation. The BiVO 4 decorated N-Doped TiO 2 nanotubes (BiVO 4 /TiO 2 −N) were synthesized by the anodization and hydrothermal procedure. The physical and chemical characterization indicates that the BiVO 4 nanoparticles are successfully decorated on the surface of the TiO 2 −N nanotubes (∼600 nm) to form the heterojunction structure. After the nitrogen doping and BiVO 4 modification of TiO 2 , the UV−visible light absorption ability is broadened, the band gap energy shifts from 3.2 to around 2.82 eV, and the injection and separation efficiency of charge carriers is increased. Nitrogen doping and BiVO 4 modification have little effect on TiO 2 crystallization. The optimal photocurrent density of BiVO 4 /TiO 2 −N reached 1.02 mA/cm 2 at 1.23 V RHE , which is about 1.76-fold more than that of the TiO 2 photoanodes. The mechanism studies for BiVO 4 /TiO 2 −N indicate that the key factors for boosting PEC performance are the light absorption and the charge separation enhancement by the N-doping and the n−n heterojunction by BiVO 4 with the TiO 2 photoanode. The mechanism for the BiVO 4 /TiO 2 −N photoanode during the PEC water splitting process is proposed for further understanding and designation.

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Section: Introductionmentioning

confidence: 99%

Enhanced Charge Separation and Transfer by BiVO₄ Heterojunction and N-Doped for TiO₂ Nanotubes during Photoelectrochemical Water Splitting

Fu,

Lian,

Lin

et al. 2023

ACS Appl. Energy Mater.

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“…TiO 2 has four crystalline polymorphs, anatase, rutile, brookite and TiO 2 (B) (biphasic based on anatase). Anatase and anatase biphasic TiO 2 have been extensively investigated in photocatalysis 5 under various forms and morphologies: microspheres, nanoflows, nanotrees and nanobelts 6–8 .…”

Section: Introductionmentioning

confidence: 99%

Rutile RuxTi1-xO2 nanobelts to enhance visible light photocatalytic activity

Ștefănescu

Cursaru

Matei

et al. 2019

Sci Rep

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We herein report on the synthesis by a facile sol-gel method without templates for preparing rutile RuxTi1-xO2 (x = 0.16; 0.07; 0.01) nanobelts with exposed (001) facets. The rutile nanobelts with exposure (001) facets, favor the separation photogenerated electron-hole pairs and inhibit the recombination of the electron-hole pairs resulting in the increase of the number of main superoxide and hydroxyl radicals. The photocatalytic properties of the rutile RuxTi1-xO2 nanobelts were evaluated by discoloring of MB (methylene blue) dye under sunlight irradiation at an intensity of 40000 lx. It was also done a thorough interface analysis to determine the band energy.

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Enhanced electrical and photocatalytic properties of porous TiO2 thin films decorated with Fe2O3 nanoparticles

Landolsi

Assaker

Nunes

et al. 2020

J Mater Sci: Mater Electron

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Visible-light photocatalytic performances of TiO₂nanobelts decorated with iron oxide nanocrystals

Abstract: Anatase TiO2nanobelts supported on Ti sheet and decorated by hematite Fe2O3nanocrystals were prepared by an easy-to-achieve three-step soft chemistry route and evaluated for its visible-light photocatalytic performances.

Cited by 12 publications

References 56 publications

Enhanced Charge Separation and Transfer by BiVO₄ Heterojunction and N-Doped for TiO₂ Nanotubes during Photoelectrochemical Water Splitting

Enhanced Charge Separation and Transfer by BiVO₄ Heterojunction and N-Doped for TiO₂ Nanotubes during Photoelectrochemical Water Splitting

Rutile RuxTi1-xO2 nanobelts to enhance visible light photocatalytic activity

Enhanced electrical and photocatalytic properties of porous TiO2 thin films decorated with Fe2O3 nanoparticles

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Visible-light photocatalytic performances of TiO2nanobelts decorated with iron oxide nanocrystals

Abstract: Anatase TiO2nanobelts supported on Ti sheet and decorated by hematite Fe2O3nanocrystals were prepared by an easy-to-achieve three-step soft chemistry route and evaluated for its visible-light photocatalytic performances.

Cited by 12 publications

References 56 publications

Enhanced Charge Separation and Transfer by BiVO4 Heterojunction and N-Doped for TiO2 Nanotubes during Photoelectrochemical Water Splitting

Enhanced Charge Separation and Transfer by BiVO4 Heterojunction and N-Doped for TiO2 Nanotubes during Photoelectrochemical Water Splitting

Rutile RuxTi1-xO2 nanobelts to enhance visible light photocatalytic activity

Enhanced electrical and photocatalytic properties of porous TiO2 thin films decorated with Fe2O3 nanoparticles

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Resources

About

Visible-light photocatalytic performances of TiO₂nanobelts decorated with iron oxide nanocrystals

Enhanced Charge Separation and Transfer by BiVO₄ Heterojunction and N-Doped for TiO₂ Nanotubes during Photoelectrochemical Water Splitting

Enhanced Charge Separation and Transfer by BiVO₄ Heterojunction and N-Doped for TiO₂ Nanotubes during Photoelectrochemical Water Splitting