Solvothermal synthesis of nanostructured BiVO4 with highly exposed (0 1 0) facets and enhanced sunlight-driven photocatalytic properties

Liu, Wei; Zhao, Guosheng; Liu, Anmin; Chang, Limin

doi:10.1016/j.apsusc.2015.09.117

Cited by 63 publications

(9 citation statements)

References 56 publications

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“…The m BiVO 4 sample prepared at pH 5 with the highest intensity of highly active {040} facet exhibited the optimal photocatalytic performance for MB degradation due to more efficient charge separation and faster charge transfer. Likewise, nanostructured m BiVO 4 sheets with a highly exposed {010} facet were obtained through a solvothermal process using 15% glycerol as solvent and directing agent at pH 6 …”

Section: Synthetic Methods For Facet Tailor Of Mbivo4 Based On Surfac...mentioning

confidence: 99%

“…Likewise, nanostructured mBiVO 4 sheets with a highly exposed {010} facet were obtained through a solvothermal process using 15% glycerol as solvent and directing agent at pH 6. 72 As mentioned before, the key to achieving selective exposure of the active facets is to change the relative stability of each facet during crystal growth. Some organic or inorganic additives can be used as capping agents to selectively cover the facets with higher surface energies, which reduces the surface energy of materials with more active sites, thereby inhibiting the crystal growth along the corresponding direction.…”

Section: Synthetic Methods For Facet Tailor Of Mbivo 4 Based On Surfa...mentioning

confidence: 99%

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Facet-Engineered Surface and Interface Design of Monoclinic Scheelite Bismuth Vanadate for Enhanced Photocatalytic Performance

et al. 2019

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Monoclinic scheelite bismuth vanadate (mBiVO 4 ) has gradually been in the limelight in recent years because of its great potential in energy conversion and environmental remediation. However, the rapid recombination of photogenerated electron−hole pairs in mBiVO 4 have impeded the improvement of its photocatalytic performance and stability. Therefore, important issues are increasingly focused on finetuning the physicochemical properties of mBiVO 4 at the atomic level based on facetengineered surface and interface design to optimize its selectivity and activity. Herein, the review begins with the fundamental aspects of mBiVO 4 semiconductor, including crystal structure, optical properties, electronic structure, and photocatalytic principles. Then the synthetic methods based on surface and interface design that develop to tailor the facet of mBiVO 4 , along with the discussion of the mechanisms for facet-dependent photocatalytic performance, are presented. Most importantly, the latest advances in facet engineering that have been performed to regulate the surface of single mBiVO 4 and to design the interface structures that are directly involved in the photocatalytic reaction for mBiVO 4based composites are encompassed. Moreover, the photocatalytic application achievements with mBiVO 4 as photocatalysts in energy conversion and environmental remediation are also summarized. Finally, perspectives on the existing challenges and future research directions for this emerging frontier are discussed.

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Section: Synthetic Methods For Facet Tailor Of Mbivo4 Based On Surfac...mentioning

confidence: 99%

Section: Synthetic Methods For Facet Tailor Of Mbivo 4 Based On Surfa...mentioning

confidence: 99%

Facet-Engineered Surface and Interface Design of Monoclinic Scheelite Bismuth Vanadate for Enhanced Photocatalytic Performance

et al. 2019

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“…Control and desirable structures, as well as morphology of BiVO 4 for photocatalytic activities are necessary here [115,116]. Photocatalytic activity is shown to vary depending on the exposed facets of BiVO 4 [117]. Synthesis of various types of BiVO 4 morphologies has been studied including single crystal microspheres [118], heterophase microspheres [119], octahedra and decahedra [105], peanut-like and needle-like [107], star-like nanoplates [108], spindly hollow microtubes [120], leaf-like [121], hyperbranched-like [122], flower-like [123], porous olive-like [124], fusiform-like [116], and butterfly-like shapes [125].…”

Section: Photocatalytic Conditionmentioning

confidence: 99%

Photocatalytic Water Splitting—The Untamed Dream: A Review of Recent Advances

et al. 2016

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Photocatalytic water splitting using sunlight is a promising technology capable of providing high energy yield without pollutant byproducts. Herein, we review various aspects of this technology including chemical reactions, physiochemical conditions and photocatalyst types such as metal oxides, sulfides, nitrides, nanocomposites, and doped materials followed by recent advances in computational modeling of photoactive materials. As the best-known catalyst for photocatalytic hydrogen and oxygen evolution, TiO 2 is discussed in a separate section, along with its challenges such as the wide band gap, large overpotential for hydrogen evolution, and rapid recombination of produced electron-hole pairs. Various approaches are addressed to overcome these shortcomings, such as doping with different elements, heterojunction catalysts, noble metal deposition, and surface modification. Development of a photocatalytic corrosion resistant, visible light absorbing, defect-tuned material with small particle size is the key to complete the sunlight to hydrogen cycle efficiently. Computational studies have opened new avenues to understand and predict the electronic density of states and band structure of advanced materials and could pave the way for the rational design of efficient photocatalysts for water splitting. Future directions are focused on developing innovative junction architectures, novel synthesis methods and optimizing the existing active materials to enhance charge transfer, visible light absorption, reducing the gas evolution overpotential and maintaining chemical and physical stability.

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“…Despites the works attempting to discuss photocatalytic mechanism based on experimental observations in presence of BiVO 4 , many other published works often base their discussion on assumptions, calculations, already published data or even speculations (Hofmann et al 2015;Liu et al 2015). But without further experimental data to complete these theoretical results, a reliable mechanism cannot be determined.…”

Section: Fig 5 Sensitization Of a Photocatalyst By A Dye And Its Submentioning

confidence: 99%

Bismuth vanadate-based semiconductor photocatalysts: a short critical review on the efficiency and the mechanism of photodegradation of organic pollutants

Monfort

Plesch

2018

Environ Sci Pollut Res

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The number of publications on photocatalytic bismuth vanadate-based materials is constantly increasing. Indeed, bismuth vanadate is gaining stronger interest in the photochemical community since it is a solar-driven photocatalyst. However, the efficiency of BiVO-based photocatalyst under sunlight is questionable: in most of the studies investigating the photodegradation of organic pollutants, only few works identify the by-products and evaluate the real efficiency of BiVO-based materials. This short review aims to (i) present briefly the principles of photocatalysis and define the photocatalytic efficiency and (ii) discuss the formation of reactive species involved in the photocatalytic degradation process of pollutants and thus the corresponding photodegradation mechanism could be determined. All these points are developed in a comprehensive discussion by focusing especially on pure, doped, and composite BiVO. Therefore, this review exhibits a critical overview on different BiVO-based photocatalytic systems with their real efficiency. This is a necessary knowledge for potential implementation of BiVO materials in environmental applications at larger scale than laboratory conditions.

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Solvothermal synthesis of nanostructured BiVO4 with highly exposed (0 1 0) facets and enhanced sunlight-driven photocatalytic properties

Cited by 63 publications

References 56 publications

Facet-Engineered Surface and Interface Design of Monoclinic Scheelite Bismuth Vanadate for Enhanced Photocatalytic Performance

Facet-Engineered Surface and Interface Design of Monoclinic Scheelite Bismuth Vanadate for Enhanced Photocatalytic Performance

Photocatalytic Water Splitting—The Untamed Dream: A Review of Recent Advances

Bismuth vanadate-based semiconductor photocatalysts: a short critical review on the efficiency and the mechanism of photodegradation of organic pollutants

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