In-situ generation of oxygen vacancies and metallic bismuth from (BiO)2CO3 via N2-assisted thermal-treatment for efficient selective photocatalytic NO removal

Rao, Fei; Zhu, Gangqiang; Zhang, Wei-Bin; Gao, Jianzhi; Zhang, Fuchun; Huang, Yu; Hojamberdiev, Mirabbos

doi:10.1016/j.apcatb.2020.119481

Cited by 105 publications

(32 citation statements)

References 44 publications

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“…Whereas, the photocatalytic property of the single ZnIn 2 S 4 is unsatisfying because of the serious carrier recombination. For pursuing the higher photocatalytic activity of ZnIn 2 S 4 , researchers have thrown tremendous efforts, including phase and morphology regulating, elements doping, cocatalystloading, defect engineering, and heterojunction constructing [11][12][13][14][15] . Among these strategies, defect engineering and heterojunction constructing are the two-effective means.…”

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confidence: 99%

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

et al. 2021

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Construction of Z-scheme heterostructure is of great significance for realizing efficient photocatalytic water splitting. However, the conscious modulation of Z-scheme charge transfer is still a great challenge. Herein, interfacial Mo-S bond and internal electric field modulated Z-scheme heterostructure composed by sulfur vacancies-rich ZnIn2S4 and MoSe2 was rationally fabricated for efficient photocatalytic hydrogen evolution. Systematic investigations reveal that Mo-S bond and internal electric field induce the Z-scheme charge transfer mechanism as confirmed by the surface photovoltage spectra, DMPO spin-trapping electron paramagnetic resonance spectra and density functional theory calculations. Under the intense synergy among the Mo-S bond, internal electric field and S-vacancies, the optimized photocatalyst exhibits high hydrogen evolution rate of 63.21 mmol∙g−1·h−1 with an apparent quantum yield of 76.48% at 420 nm monochromatic light, which is about 18.8-fold of the pristine ZIS. This work affords a useful inspiration on consciously modulating Z-scheme charge transfer by atomic-level interface control and internal electric field to signally promote the photocatalytic performance.

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confidence: 99%

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

et al. 2021

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“…The semiconductor photocatalytic technology has been widely used for the photocatalytic oxidation of ppb-level NO owing to its green and environmental protection characteristics. Bi-based semiconductor materials, − TiO 2 , − g-C 3 N 4 , − and spinel oxides , have shown excellent performance in the photocatalytic degradation of NO.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Photocatalytic Oxidation of Nitric Oxide to MOF-derived Hollow Bimetallic Oxide Microcubes Supported on g-C₃N₄ Nanosheets via p–n Heterojunction

Wang

Chen

et al. 2021

Ind. Eng. Chem. Res.

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A unique Prussian blue analog-derived three-dimensional (3D) hollow Ni−Co bimetal oxide compound supported on two-dimensional (2D) g-C 3 N 4 nanosheets was successfully prepared using a low-temperature annealing method. A spatial conductive frame was formed owing to formation of a p−n heterojunction between the Ni−Co bimetallic oxide and g-C 3 N 4 , which accelerated photogenerated carrier migration and inhibited recombination. The hollow Ni−Co bimetallic oxide had pores that allowed facile gas circulation. After g-C 3 N 4 recombination, the synergistic effect of the two catalysts degraded NO (600 ppb) under visible light with an extremely high conversion rate of up to 59.1%. Cycling experiments and X-ray diffraction results confirmed the stability of the composite catalyst, which has broad application prospects in environmental science.

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“…However, for mono-component semiconductor, it is impossible to satisfy all of these demands at the same time. Over the past decades, researchers have developed various strategies to improve photocatalytic property, including phase and morphology regulating, elements doping, cocatalyst-loading, defect engineering and heterojunction constructing [7][8][9][10][11] . Among these strategies, defect engineering and heterojunction constructing are the two-effective means.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Chemical Bond and Internal Electric Field Modulated Z-Scheme Vs-ZnIn2S4/MoSe2 Photocatalyst for Efficient Hydrogen Evolution

Wang

Huang

et al. 2021

Preprint

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Construction of Z-scheme heterostructure is of momentous significance for realizing efficient photocatalytic water splitting. However, the consciously modulate of Z-scheme charge transfer is still a great challenge. Herein, interfacial Mo-S bond and internal electric field modulated Z-Scheme heterostructure composed by sulfur vacancies-rich ZnIn2S4 (Vs-ZIS) and MoSe2 was rationally fabricated for efficient photocatalytic hydrogen evolution. Systematic investigations reveal that Mo-S bond and internal electric field induce the Z-scheme charge transfer mechanism as confirmed by the SPS and DMPO spin-trapping EPR spectra. Under the intense synergy among the Mo-S bond, internal electric field and S-vacancies, the optimized photocatalyst exhibits ultrahigh hydrogen evolution rate of 63.21 mmol∙g-1·h-1 with an apparent quantum yield of 76.48% at 420 nm monochromatic light, which is about 18.8-fold of the pristine ZIS. This work affords a new inspiration on consciously modulating Z-scheme charge transfer by atomic-level interface control and internal electric field to signally promote the photocatalytic performance.

show abstract

In-situ generation of oxygen vacancies and metallic bismuth from (BiO)2CO3 via N2-assisted thermal-treatment for efficient selective photocatalytic NO removal

Cited by 105 publications

References 44 publications

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

Enhanced Photocatalytic Oxidation of Nitric Oxide to MOF-derived Hollow Bimetallic Oxide Microcubes Supported on g-C₃N₄ Nanosheets via p–n Heterojunction

Interfacial Chemical Bond and Internal Electric Field Modulated Z-Scheme Vs-ZnIn2S4/MoSe2 Photocatalyst for Efficient Hydrogen Evolution

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In-situ generation of oxygen vacancies and metallic bismuth from (BiO)2CO3 via N2-assisted thermal-treatment for efficient selective photocatalytic NO removal

Cited by 105 publications

References 44 publications

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

Enhanced Photocatalytic Oxidation of Nitric Oxide to MOF-derived Hollow Bimetallic Oxide Microcubes Supported on g-C3N4 Nanosheets via p–n Heterojunction

Interfacial Chemical Bond and Internal Electric Field Modulated Z-Scheme Vs-ZnIn2S4/MoSe2 Photocatalyst for Efficient Hydrogen Evolution

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Enhanced Photocatalytic Oxidation of Nitric Oxide to MOF-derived Hollow Bimetallic Oxide Microcubes Supported on g-C₃N₄ Nanosheets via p–n Heterojunction