Interface Engineering in 2D/2D Heterogeneous Photocatalysts

Yu, Huijun; Meng, Dong; Zhang, Jing; Chen, Wenhan; Qiu, Jin; Wang, Shuguang; He, Zuoli

doi:10.1002/smll.202205767

Cited by 39 publications

(21 citation statements)

References 297 publications

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“…It is worth noting that stacking nonferroelectric materials can also produce unexpected ferroelectricity, which have been discovered in bilayer BN, bilayer TMDs, or h-BN/bilayer graphene/h-BN vdW heterostructure . The construction of heterogeneous structure can be obtained by growth, mechanical stacking or folding, , in which the ferroelectrity is strongly dependented on the stacking order, stacking direction, as well the layer number.…”

Section: Synthesis Of 2d Ferroicsmentioning

confidence: 99%

Ferroic Phases in Two-Dimensional Materials

Man,

Huang,

Zhao

et al. 2023

Chem. Rev.

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Two-dimensional (2D) ferroics, namely ferroelectric, ferromagnetic, and ferroelastic materials, are attracting rising interest due to their fascinating physical properties and promising functional applications. A variety of 2D ferroic phases, as well as 2D multiferroics and the novel 2D ferrovalleytronics/ferrotoroidics, have been recently predicted by theory, even down to the single atomic layers. Meanwhile, some of them have already been experimentally verified. In addition to the intrinsic 2D ferroics, appropriate stacking, doping, and defects can also artificially regulate the ferroic phases of 2D materials. Correspondingly, ferroic ordering in 2D materials exhibits enormous potential for future high density memory devices, energy conversion devices, and sensing devices, among other applications. In this paper, the recent research progresses on 2D ferroic phases are comprehensively reviewed, with emphasis on chemistry and structural origin of the ferroic properties. In addition, the promising applications of the 2D ferroics for information storage, optoelectronics, and sensing are also briefly discussed. Finally, we envisioned a few possible pathways for the future 2D ferroics research and development. This comprehensive overview on the 2D ferroic phases can provide an atlas for this field and facilitate further exploration of the intriguing new materials and physical phenomena, which will generate tremendous impact on future functional materials and devices.

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Section: Synthesis Of 2d Ferroicsmentioning

confidence: 99%

Ferroic Phases in Two-Dimensional Materials

Man,

Huang,

Zhao

et al. 2023

Chem. Rev.

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“…In recent years, the construction of 2D/2D heterostructure photocatalysts has been proven to effectively improve the photocatalytic activity . This is because the 2D/2D heterostructure can greatly increase the interface contact between the two; morphological engineering can facilitate the rapid migration and separation of photogenerated carriers, thus greatly reducing the recombination rate of photogenerated carriers and thereby improving the photocatalytic activity. , In view of this, herein, cotton fiber biochar (CFB) nanosheets were used to modify the BWO nanosheets by a simple hydrothermal process, and the CFB–BWO 2D/2D heterostructure photocatalysts were thus obtained.…”

Section: Introductionmentioning

confidence: 99%

2D/2D Biochar/Bi₂WO₆ Hybrid Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities for Organic Pollutants Degradation

Li¹,

Qu²,

Xu³

et al. 2023

ACS Omega

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In this work, a novel two-dimensional/two-dimensional (2D/2D) hybrid photocatalyst consisting of Bi 2 WO 6 (BWO) nanosheets and cotton fibers biochar (CFB) nanosheets was successfully prepared via a facile hydrothermal process. The as-prepared photocatalysts were characterized by a variety of techniques, including X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and UV−vis diffuse reflectance spectroscopy. It was revealed that amorphous CFB nanosheets were uniformly immobilized on the surface of crystalline BWO nanosheets, and an intimate contact between CFB and BWO was constructed. The photocatalytic activities of the prepared BWO and CFB−BWO photocatalysts were evaluated by photocatalytic degradation of rhodamine B (RhB) and tetracycline hydrochloride (TC-HCl) in aqueous solutions under visible-light irradiation. Compared to the pristine BWO, the CFB−BWO composite photocatalysts exhibited significant enhancement in photocatalytic activities. Among all CFB−BWO samples, the 9CFB−BWO sample with the CFB mass ratio of 9% exhibited optimal photocatalytic activities for RhB or TC-HCl degradation, which was ca. 1.8 times or 2.4 times that of the pristine BWO, respectively. The improvement in photocatalytic activities of the CFB−BWO photocatalysts could be ascribed to the enhanced migration and separation of photogenerated charge carriers due to the formation of a 2D/2D interfacial heterostructure between CFB and BWO. Meanwhile, the possible mechanism of CFB−BWO for enhanced photocatalytic performance was also discussed. This work may provide a new approach to designing and developing novel BWO-based photocatalysts for the highly efficient removal of organic pollutants.

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“…20–24 It has been reported that 2D/2D hybrids possess a high charge separation rate due to the large interfacial contact area and short transfer distance, showing great promise in photocatalysis. 25–28 2D MXenes show unique thickness-dependent physicochemical features, a high specific surface area, and abundant active sites and can be regarded as ideal components to construct 2D/2D hybrids. 29,30 Moreover, the synergistic effect of photocatalysis and photothermal conversion can greatly improve the water purification efficiency, and MXene-based materials can be regarded as ideal substrates enabling the synergetic effect for water evaporation.…”

Section: Introductionmentioning

confidence: 99%

Synergistic photothermal conversion and photocatalysis in 2D/2D MXene/Bi₂S₃ hybrids for efficient solar-driven water purification

Liu,

Qu,

Zhou

et al. 2023

Nanoscale

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Interface Engineering in 2D/2D Heterogeneous Photocatalysts

Cited by 39 publications

References 297 publications

Ferroic Phases in Two-Dimensional Materials

Ferroic Phases in Two-Dimensional Materials

2D/2D Biochar/Bi₂WO₆ Hybrid Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities for Organic Pollutants Degradation

Synergistic photothermal conversion and photocatalysis in 2D/2D MXene/Bi₂S₃ hybrids for efficient solar-driven water purification

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Interface Engineering in 2D/2D Heterogeneous Photocatalysts

Cited by 39 publications

References 297 publications

Ferroic Phases in Two-Dimensional Materials

Ferroic Phases in Two-Dimensional Materials

2D/2D Biochar/Bi2WO6 Hybrid Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities for Organic Pollutants Degradation

Synergistic photothermal conversion and photocatalysis in 2D/2D MXene/Bi2S3 hybrids for efficient solar-driven water purification

Contact Info

Product

Resources

About

2D/2D Biochar/Bi₂WO₆ Hybrid Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities for Organic Pollutants Degradation

Synergistic photothermal conversion and photocatalysis in 2D/2D MXene/Bi₂S₃ hybrids for efficient solar-driven water purification