BiVO4 /Bi4Ti3O12 heterojunction enabling efficient photocatalytic reduction of CO2 with H2O to CH3OH and CO

Wang, Ding; Wang, Yingshu; Gao, Meichao; Shen, Jinni; Pu, Xipeng; Zhang, Zizhong; Lin, Huaxiang; Wang, Xuxu

doi:10.1016/j.apcatb.2020.118876

Cited by 202 publications

(75 citation statements)

References 48 publications

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“…Moreover, Figure 6c,d shows the comparison of the photocatalytic capability of CH 4 and CO evolution in this work with those in previous studies. It can be obviously found that our hierarchical BiOI/MoS 2 /CdS‐0.03 heterostructured microsphere catalysts exhibit significantly higher CH 4 and CO production rates than most reported catalysts (such as the bismuth‐based catalysts, [ 2,19,20,60 ] TiO 2 composite catalysts, [ 61–63 ] C 3 N 4 composite catalysts, [ 5,64,65 ] and other catalysts [ 1,66,67 ] ). The results further demonstrate that our composite catalysts have potential application in using solar energy for photocatalytic CO 2 reduction.…”

Section: Resultsmentioning

confidence: 92%

“…The excessive consumption fossil energy and a continuous increase in CO 2 concentration in atmosphere have caused the growing energy crisis and the greenhouse effect. [ 1–3 ] Therefore, converting CO 2 into valuable organics to eliminate it and solve growing energy demands and environmental challenges is urgent. Among numerous solutions, photocatalytic conversion of CO 2 into clean chemical fuels (including CO, CH 4 , and CH 3 OH) by utilizing renewable sunlight has been considered to be one of the most attractive and sustainable strategies to solve global warming and future energy supply problems.…”

Section: Introductionmentioning

confidence: 99%

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Construction of Hierarchical BiOI/MoS₂/CdS Heterostructured Microspheres for Boosting Photocatalytic CO₂ Reduction Under Visible Light

Luo

Bao

et al. 2021

Solar RRL

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Efficient photocatalytic CO2 reduction into clean chemical fuels using visible light remains an enormous challenge. Construction of hierarchical heterostructured photocatalysts has gained tremendous popularity due to their distinctive structural characteristics and synergetic effect that they can boost the visible‐light photoactivities. Based on this, a three‐step solvothermal method is proposed to construct hierarchical BiOI/MoS2/CdS heterostructured microspheres. The addition of MoS2 and CdS not only plays a significant role in the improvement of visible‐light absorption, but also works as a carrier electron mediator, inhibiting the recombination of electrons–holes effectively. High CH4 yield (46.22 μmol h−1 g−1) and CO yield (36.98 μmol h−1 g−1) are achieved for BiOI/MoS2/CdS‐0.03 heterostructured microspheres under simulated sunlight irradiation because of the wide solar light‐driven response, abundant active sites and high charge separation ability. Therefore, this study provides an efficient strategy for constructing heterostructured catalysts with remarkable visible‐light response photocatalytic CO2 reduction activity.

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Section: Resultsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Construction of Hierarchical BiOI/MoS₂/CdS Heterostructured Microspheres for Boosting Photocatalytic CO₂ Reduction Under Visible Light

Luo

Bao

et al. 2021

Solar RRL

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“…As a result, much improved photocatalytic reactivity and product selectivity were achieved in the visible light-driven reduction of CO 2 to CH 4 . Very recently, a composite of BiVO 4 and Bi 4 Ti 3 O 12 with type II heterojunction was reported by Wang et al [75]. Compared to pristine Bi 4 Ti 3 O 12 , the photocatalytic ä Fig.…”

Section: Hybrid Nanostructure Constructionmentioning

confidence: 94%

Nanostructured Semiconductors for Photocatalytic CO2 Reduction

Zhang¹,

Tsang²,

Lee³

2020

Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications

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The excessive use of fossil fuels during rapid industrialization of world has inevitably led to the continuous increase in the atmospheric CO 2 level, which became one of the major concerns worldwide. Using solar energy to convert CO 2 into useful fuels is a promising approach to address both energy shortage and environmental crisis, and this has recently emerged as one of the most important research areas. However, the stable nature of CO 2 molecule under ambient conditions and the complicated reaction mechanism involved in its reduction reaction pose great challenges in both aspects of thermodynamics and kinetics for realizing the practical transformation of CO 2. Nanostructured materials with large surface areas and unique optical and electronic properties are one of core elements in the development of photocatalytic CO 2 conversion platform. In this chapter, a comprehensive understanding on photocatalytic CO 2 reduction, including the reaction mechanism, challenges in both thermodynamic and kinetic aspect, the design principles of a photocatalytic CO 2 reduction system, and the detection methods for various reduction products will be discussed. In addition, recent research developments in high-performance photocatalytic CO 2 conversion systems based on nanomaterials design and their hybrids will be summarized with an outlook on the research trend.

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“…Photocatalysis technology based on semiconductors can convert solar energy to chemical fuels and utilize sunlight to degrade organic pollutants. It is believed to be a promising technique toward solving the increasing crisis of energy shortage and environmental pollution 1‐6 . However, almost all photocatalysts suffer a high recombination of photoinduced electron–hole (e − –h + ) pairs, and this causes lower photoactivity 7‐11 .…”

Section: Introductionmentioning

confidence: 99%

“…It is believed to be a promising technique toward solving the increasing crisis of energy shortage and environmental pollution. [1][2][3][4][5][6] However, almost all photocatalysts suffer a high recombination of photoinduced electron-hole (e − -h + ) pairs, and this causes lower photoactivity. [7][8][9][10][11] To address this problem, coupling with other semiconductors to construct a heterostructure is a promising technique.…”

Section: Introductionmentioning

confidence: 99%

Magnetically separable NiFe₂O₄/Ag₃VO₄/Ag₂VO₂PO₄ direct Z‐scheme heterostructure with enhanced visible‐light photoactivity

Zhang

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND The occurrence of organic contaminants in surface water has drawn great concern in recent years. The construction of a heterostructure has been shown to improve photoactivity by boosting the separation of photogenerated charge carriers. In this work, magnetically separable NiFe2O4/Ag3VO4/Ag2VO2PO4 (NFO/AVO/AVPO) heterojunction photocatalysts were synthesized via a chemical etching method in ammonia solution of different concentrations, using NFO/AVPO as the source material. The magnetic NFO/AVO/AVPO not only endows magnetic recoverability using an external magnetic field, but also possesses a heterojunction, boosting the separation of photoinduced charges. RESULTS Compared with NFO, AVPO and NFO/AVPO, NFO/AVO/AVPO composites as synthesized show improved visible‐light photoactivities. At the optimum concentration (0.15 mol L−1) of ammonia solution, the NFO/AVO/AVPO shows 8.5 and 10.7 times improved photodegradation efficiency for methylene blue and imidacloprid than that of pristine NFO/AVPO, respectively. Due to the presence of magnetic NiFe2O4, the NFO/AVO/AVPO can be magnetically separated easily from the photoreaction system using a magnet. The improved photoactivity can be attributed to the formation of a direct Z‐scheme heterojunction, which boosts the separation of photoinduced electron–hole pairs. CONCLUSION This work not only opens up a new method to fabricate heterojunction photocatalysts, but also paves the way for designing advanced magnetically separable photocatalysts with improved photoactivity. © 2021 Society of Chemical Industry (SCI).

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BiVO4 /Bi4Ti3O12 heterojunction enabling efficient photocatalytic reduction of CO2 with H2O to CH3OH and CO

Cited by 202 publications

References 48 publications

Construction of Hierarchical BiOI/MoS₂/CdS Heterostructured Microspheres for Boosting Photocatalytic CO₂ Reduction Under Visible Light

Construction of Hierarchical BiOI/MoS₂/CdS Heterostructured Microspheres for Boosting Photocatalytic CO₂ Reduction Under Visible Light

Nanostructured Semiconductors for Photocatalytic CO2 Reduction

Magnetically separable NiFe₂O₄/Ag₃VO₄/Ag₂VO₂PO₄ direct Z‐scheme heterostructure with enhanced visible‐light photoactivity

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BiVO4 /Bi4Ti3O12 heterojunction enabling efficient photocatalytic reduction of CO2 with H2O to CH3OH and CO

Cited by 202 publications

References 48 publications

Construction of Hierarchical BiOI/MoS2/CdS Heterostructured Microspheres for Boosting Photocatalytic CO2 Reduction Under Visible Light

Construction of Hierarchical BiOI/MoS2/CdS Heterostructured Microspheres for Boosting Photocatalytic CO2 Reduction Under Visible Light

Nanostructured Semiconductors for Photocatalytic CO2 Reduction

Magnetically separable NiFe2O4/Ag3VO4/Ag2VO2PO4 direct Z‐scheme heterostructure with enhanced visible‐light photoactivity

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Construction of Hierarchical BiOI/MoS₂/CdS Heterostructured Microspheres for Boosting Photocatalytic CO₂ Reduction Under Visible Light

Construction of Hierarchical BiOI/MoS₂/CdS Heterostructured Microspheres for Boosting Photocatalytic CO₂ Reduction Under Visible Light

Magnetically separable NiFe₂O₄/Ag₃VO₄/Ag₂VO₂PO₄ direct Z‐scheme heterostructure with enhanced visible‐light photoactivity