Piezo-photocatalysis over phase-engineered MoSe2 modified Bi2WO6 hierarchical microspheres: Utilizing piezoelectric effect to enhance photocatalytic performance

Li, Nan; Zuo, Shixiang; Shen, Wenjing; Wu, Mianmian; Li, Qingfei; Shi, Minghao; Ma, Jiangquan

doi:10.1016/j.ceramint.2022.08.302

Cited by 21 publications

(14 citation statements)

References 43 publications

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“…For example, Ma et al synthesized novel 1T/2H MoSe 2 /Bi 2 WO 6 and 2H MoSe 2 /Bi 2 WO 6 hierarchical microspheres. 1T/2H MoSe 2 showed larger surface area, better light absorption, more active sites, and more favorable energy band positions for better photocatalytic degradation of diclofenac than 2H MoSe 2 . Similarly, Tao et al.…”

Section: Introductionmentioning

confidence: 89%

“…1T/2H MoSe 2 showed larger surface area, better light absorption, more active sites, and more favorable energy band positions for better photocatalytic degradation of diclofenac than 2H MoSe 2 . 24 Similarly, Tao et al reported a multiphasic (1T/2H) MoSe 2 integrated CdS (1T/2H-MC) for photocatalytic HER, with the HER performance achieved over optimized 1T/2H-MC about 3.07times higher than the 2H-MC, which was mainly attributed to narrower bandgap, more active sites, and better conductivity of 1T/2H phase relative to 2H MoSe 2 . 25 Although some progress has been made in employing 2D MoSe 2 as cocatalyst in the HER, phase engineering to optimize the cocatalytic effect is the focus of current research and is still urgently required.…”

Section: ■ Introductionmentioning

confidence: 94%

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Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO₂/1T-Rich MoSe₂ Heterostructures for Efficient Photocatalytic Hydrogen Evolution

Sun

Dong

et al. 2023

ACS Sustainable Chem. Eng.

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Phase engineering and interface regulation are effective tactics to improve photocatalytic performance. Combining these two effects in one photocatalytic heterostructure is challenging but has yet to be achieved. In this paper, a 0D/2D photocatalytic heterostructure targeting efficient visible-light-driven H2 generation was constructed via a facile in situ hydrothermal approach, where 2D MoSe2 nanosheets with rich 1T-phase were tightly grown on the surface of 0D TiO2 nanoparticles. The synergy of the maximized cocatalytic effect of 1T-rich MoSe2 via phase engineering and the optimized contact interface with suitable interfacial barrier between the 1T-rich MoSe2 and TiO2 can accelerate the charge carrier separation to promote photocatalysis efficiency. Consequently, the H2 yield from pure water of the optimal TiO2/1T-rich MoSe2 hybrid was 17.0 mmol g–1, which was 77.6- and 20.0-times higher than that of pure TiO2 or a physical mixture of TiO2 and 1T-rich MoSe2, respectively. The H2 yield from seawater of the optimal TiO2/1T-rich MoSe2 also can reach 1.05 mmol g–1 h–1. This study proclaims the considerable synergistic effect of phase engineering and interface regulation in a photocatalytic system and provides a valuable thread for the construction of an efficient photocatalysts.

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Section: Introductionmentioning

confidence: 89%

Section: ■ Introductionmentioning

confidence: 94%

Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO₂/1T-Rich MoSe₂ Heterostructures for Efficient Photocatalytic Hydrogen Evolution

Sun

Dong

et al. 2023

ACS Sustainable Chem. Eng.

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“…15 Therefore, a reasonable BWO-based heterostructure could be designed to further improve the piezo-photocatalytic degradation efficiency of pure BWO. 16 Notably, cadmium indium sulfide (CdIn 2 S 4 , abbreviated as CIS), a typical ternary metal chalcogenide photocatalyst, has received extensive attention in the field of photocatalysis due to its strong light absorption capability and suitable band gap. 17 However, the practical applications of CIS are still limited due to its fast recombination rate of photogenerated charges.…”

Section: Introductionmentioning

confidence: 99%

“…More precisely, the internal electric field established at the heterojunction interface of the catalyst plays an important role . Therefore, a reasonable BWO-based heterostructure could be designed to further improve the piezo-photocatalytic degradation efficiency of pure BWO …”

Section: Introductionmentioning

confidence: 99%

Z-Scheme CdIn₂S₄/Bi₂WO₆ Heterojunction for High Piezo-Photo Synergetic Performance

Shi

et al. 2023

Inorg. Chem.

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The piezoelectric effect triggered by mechanical energy could establish an internal electric field to effectively modulate the separation behavior of carriers. Herein, a novel CdIn2S4/Bi2WO6 (CIS/BWO) piezo-photocatalyst for removing diclofenac (DCF) from water was constructed for the first time. Encouragingly, the photocatalytic degradation activity of CIS/BWO was effectively promoted through the piezoelectric effect. Specifically, 10% CIS/BWO exhibited promising DCF degradation performance under co-excitation of light irradiation and ultrasonic vibration, with a degradation efficiency of 99.9% within 40 min, much higher than that of pure photocatalysts (72.3%) and piezocatalysts (60.3%). Meanwhile, an in-depth study of the charge carrier separation mechanism of the CIS/BWO composite under the piezo-photo synergy condition was proposed. Both the built-in electric field induced by the piezoelectric effect in BWO and the Z-scheme transfer path of the CIS/BWO heterojunction are beneficial to interfacial charge transfer. Moreover, the Z-scheme mechanism was further demonstrated by trapping experiments and the electron spin resonance (ESR) technique. Finally, the corresponding intermediates of DCF over CIS/BWO composites and possible degradation pathways were also investigated by DFT calculations and liquid chromatography–mass spectrometry.

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“…9,10 Thus, a clever combination of light and mechanical energies is employed to achieve excellent piezo-photocatalytic activity. 11…”

Section: Introductionmentioning

confidence: 99%

Fabrication of multiphase MoSe₂ modified BiOCl nanosheets for efficient piezo-photoelectric hydrogen evolution and antibiotic degradation

Wu¹,

Li²,

Shi³

et al. 2023

Dalton Trans.

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Piezo-photocatalysis over phase-engineered MoSe2 modified Bi2WO6 hierarchical microspheres: Utilizing piezoelectric effect to enhance photocatalytic performance

Cited by 21 publications

References 43 publications

Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO₂/1T-Rich MoSe₂ Heterostructures for Efficient Photocatalytic Hydrogen Evolution

Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO₂/1T-Rich MoSe₂ Heterostructures for Efficient Photocatalytic Hydrogen Evolution

Z-Scheme CdIn₂S₄/Bi₂WO₆ Heterojunction for High Piezo-Photo Synergetic Performance

Fabrication of multiphase MoSe₂ modified BiOCl nanosheets for efficient piezo-photoelectric hydrogen evolution and antibiotic degradation

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Piezo-photocatalysis over phase-engineered MoSe2 modified Bi2WO6 hierarchical microspheres: Utilizing piezoelectric effect to enhance photocatalytic performance

Cited by 21 publications

References 43 publications

Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO2/1T-Rich MoSe2 Heterostructures for Efficient Photocatalytic Hydrogen Evolution

Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO2/1T-Rich MoSe2 Heterostructures for Efficient Photocatalytic Hydrogen Evolution

Z-Scheme CdIn2S4/Bi2WO6 Heterojunction for High Piezo-Photo Synergetic Performance

Fabrication of multiphase MoSe2 modified BiOCl nanosheets for efficient piezo-photoelectric hydrogen evolution and antibiotic degradation

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Product

Resources

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Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO₂/1T-Rich MoSe₂ Heterostructures for Efficient Photocatalytic Hydrogen Evolution

Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO₂/1T-Rich MoSe₂ Heterostructures for Efficient Photocatalytic Hydrogen Evolution

Z-Scheme CdIn₂S₄/Bi₂WO₆ Heterojunction for High Piezo-Photo Synergetic Performance

Fabrication of multiphase MoSe₂ modified BiOCl nanosheets for efficient piezo-photoelectric hydrogen evolution and antibiotic degradation