Fabrication of Cu2O/Au/BiPO4 Z-scheme photocatalyst to improve the photocatalytic activity under solar light

Li, Junqi; Yuan, Huan; Zhu, Zhiliang

doi:10.1016/j.molcata.2015.09.013

Cited by 36 publications

(5 citation statements)

References 29 publications

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“…In particular, great expectations have been placed on the Z-scheme photocatalytic mechanism-which includes two-step excitation and is illuminated by natural photosynthesis in plants [16]-for improving the utilization efficiency of sunlight [17][18][19][20][21][22][23][24]. Generally speaking, the Z-scheme photocatalytic system is made up of three parts: Catalysts for the hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and the redox mediator for carrier migration [25].…”

Section: Introductionmentioning

confidence: 99%

Bilayer MoSe2/HfS2 Nanocomposite as a Potential Visible-Light-Driven Z-Scheme Photocatalyst

Wang

et al. 2019

Nanomaterials

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Visible-light-driven photocatalytic overall water splitting is deemed to be an ideal way to generate clean and renewable energy. The direct Z-scheme photocatalytic systems, which can realize the effective separation of photoinduced carriers and possess outstanding redox ability, have attracted a huge amount of interest. In this work, we have studied the photocatalytic performance of the bilayer MoSe2/HfS2 van der Waals (vdW) heterojunction following the direct Z-scheme mechanism by employing the hybrid density functional theory. Our calculated results show that the HfS2 and MoSe2 single layers in this heterojunction are used for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), respectively. The charge transfer between the two layers brought about an internal electric field pointing from the MoSe2 layer to the HfS2 slab, which can accelerate the separation of the photoinduced electron–hole pairs and support the Z-scheme electron migration near the interface. Excitingly, the optical absorption intensity of the MoSe2/HfS2 heterojunction is enhanced in the visible and infrared region. As a result, these results reveal that the MoSe2/HfS2 heterojunction is a promising direct Z-scheme photocatalyst for photocatalytic overall water splitting.

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Section: Introductionmentioning

confidence: 99%

Bilayer MoSe2/HfS2 Nanocomposite as a Potential Visible-Light-Driven Z-Scheme Photocatalyst

Wang

et al. 2019

Nanomaterials

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“…19 It exhibits excellent photocatalytic performance because of its superior optical properties, non-toxicity, low costeffectiveness, and high catalytic efficiency. 20 However, the wide band gap (4.06 eV) of BiPO 4 limits its photocatalytic activity, making it only effective in a narrow range of light reactions (λ < 400 nm), 21 and its tendency to agglomerate also reduces its efficiency in the catalytic process. 22 Increasing the separation efficiency of photoinduced electron-hole pairs can further enhance the photocatalytic activity of BiPO 4 .…”

Section: Introductionmentioning

confidence: 99%

Tailored BiPO₄/Bi‐MOF heterostructure photocatalysts with diverse morphologies for highly efficient organic pollutant degradation

Liu,

Wang,

Dong

et al. 2024

Applied Organom Chemis

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Three distinct morphologies of Bi‐MOFs were innovatively employed as carriers, facilitating the formation of heterojunctions with BiPO4. Among these, the optimal photocatalytic performance was demonstrated by the type II heterojunction BiPO4/CAU‐17. Bi3+ competitively coordinated to crucially aid CAU‐17's transformation into a heterojunction, enhancing interfacial contact in BiPO4/CAU‐17. These photocatalysts effectively degraded dyes (RhB, MO, MB) and tetracycline (TC) under light exposure. RhB degradation was 3.33 times faster with BiPO4/CAU‐17 than BiPO4, 1.45 times faster than FCAU‐17, 1.36 times faster than FRCAU‐17, and 1.32 times faster than CAU‐17. Analyzing carrier density, Fermi level, and band structure through VB‐XPS, UV–VIS, and Mott–Schottky provided insights into enhanced separation of photoexcited electron–hole pairs. This study presents a novel approach to tackle the aggregation challenge of the wide‐bandgap material BiPO4 by using suitable MOFs as carriers. It offers valuable perspectives for the design and application of photocatalysts in environmental remediation.

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“…Z-scheme heterojunctions, in which the photogenerated charges follow a Z scheme transfer route, have attracted much attention because they can ensure a wide range of light response and improve the oxidation and reduction ability of semiconductors. ,− Li et al demonstrated the Z-scheme structured Cu 2 O/Au/BiPO 4 could effectively inhibit the recombination of photoinduced carriers. Zhang et al showed the Z-scheme charges transport in 3DOM-SrTiO 3 /Ag/Ag 3 PO 4 upon exposure to UV–vis light, which was the main reason for its enhanced activity and stability in photodegradation of RhB in comparison with the single components.…”

Section: Introductionmentioning

confidence: 99%

Z-scheme Ag₃PO₄/Ag/SrTiO₃ Heterojunction for Visible-Light Induced Photothermal Synergistic VOCs Degradation with Enhanced Performance

Rui

2019

Ind. Eng. Chem. Res.

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Z-scheme heterojunctions are an emerging kind of photocatalysts for environmental and energy applications due to their unique charges separation and transfer route as well as strong redox ability. Considering that the electron transport media used in Z-scheme, such as noble metal particles, are also potential thermal catalysts, herein, we propose the construction of Z-scheme photothermal synergistic catalysts and their applications in VOCs degradation. Z-scheme heterojunction Ag 3 PO 4 /Ag/SrTiO 3 (or AgPO/Ag/STO) was constructed and showed remarkably strong visible light response and improved redox ability for oxidative species (•OH and •O 2 − ) production in comparison with the single AgPO and STO. A cooperative effect between visible-light induced photocatalysis and thermocatalysis was proved in the degradation of VOCs over AgPO/Ag/STO, leading to an enhanced performance. Such a Zscheme photothermocatalyst concept provides a new catalyst design route for future environmental application.

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Fabrication of Cu2O/Au/BiPO4 Z-scheme photocatalyst to improve the photocatalytic activity under solar light

Cited by 36 publications

References 29 publications

Bilayer MoSe2/HfS2 Nanocomposite as a Potential Visible-Light-Driven Z-Scheme Photocatalyst

Bilayer MoSe2/HfS2 Nanocomposite as a Potential Visible-Light-Driven Z-Scheme Photocatalyst

Tailored BiPO₄/Bi‐MOF heterostructure photocatalysts with diverse morphologies for highly efficient organic pollutant degradation

Z-scheme Ag₃PO₄/Ag/SrTiO₃ Heterojunction for Visible-Light Induced Photothermal Synergistic VOCs Degradation with Enhanced Performance

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Fabrication of Cu2O/Au/BiPO4 Z-scheme photocatalyst to improve the photocatalytic activity under solar light

Cited by 36 publications

References 29 publications

Bilayer MoSe2/HfS2 Nanocomposite as a Potential Visible-Light-Driven Z-Scheme Photocatalyst

Bilayer MoSe2/HfS2 Nanocomposite as a Potential Visible-Light-Driven Z-Scheme Photocatalyst

Tailored BiPO4/Bi‐MOF heterostructure photocatalysts with diverse morphologies for highly efficient organic pollutant degradation

Z-scheme Ag3PO4/Ag/SrTiO3 Heterojunction for Visible-Light Induced Photothermal Synergistic VOCs Degradation with Enhanced Performance

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Tailored BiPO₄/Bi‐MOF heterostructure photocatalysts with diverse morphologies for highly efficient organic pollutant degradation

Z-scheme Ag₃PO₄/Ag/SrTiO₃ Heterojunction for Visible-Light Induced Photothermal Synergistic VOCs Degradation with Enhanced Performance