A novel strategy to enhance the visible light driven photocatalytic activity of CuBi2O4 through its piezoelectric response

Cao, Yongfan; He, Tufeng; Li, Meijia; Cao, Zhenzhu; Gao, Yanfang; Liu, Jinrong; Li, Guorong

doi:10.1016/j.jpcs.2022.110732

Cited by 13 publications

(4 citation statements)

References 63 publications

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“…The other experimental details were the same as the photocatalytic activity characterization. 45 which was significantly inferior to our CuBi 2 O 4 / AgNbO 3 heterojunction. To measure the extent of RhB decolorization, the Langmuir−Hinshelwood kinetic model 48 was utilized to calculate the apparent reaction rate constant (k).…”

Section: Trapping Measurementsmentioning

confidence: 57%

“…Among all the samples, the 10%CuBi 2 O 4 /AgNbO 3 composite showed the highest degradation efficiency for the RhB solution, and 95% RhB was decomposed within 90 min, which is significantly higher than that of individual AgNbO 3 (the degradation rate of 80% within 90 min). In fact, the photocatalytic degradation performances of individual CuBi 2 O 4 have been studied, and CuBi 2 O 4 degraded ∼40% of RhB within 80 min under the illumination of a 300 W Xe lamp, which was significantly inferior to our CuBi 2 O 4 /AgNbO 3 heterojunction. To measure the extent of RhB decolorization, the Langmuir–Hinshelwood kinetic model was utilized to calculate the apparent reaction rate constant ( k ).…”

Section: Resultsmentioning

confidence: 96%

“…Recently, piezocatalysis was realized in hydrothermally derived CuBi 2 O 4 nanorods for the first time. By piezo-photocatalysis, 98.1% rhodamine B (RhB) was decomposed within 80 min, which was significantly higher than photocatalysis (∼38.7%) and piezo-catalysis (∼72.8%) . However, no direct evidence, such as piezoelectric response force microscopy (PFM), has been provided to confirm the piezoelectricity of CuBi 2 O 4 .…”

Section: Introductionmentioning

confidence: 99%

“…By piezo-photocatalysis, 98.1% rhodamine B (RhB) was decomposed within 80 min, which was significantly higher than photocatalysis (∼38.7%) and piezo-catalysis (∼72.8%). 45 However, no direct evidence, such as piezoelectric response force microscopy (PFM), has been provided to confirm the piezoelectricity of CuBi 2 O 4 . More importantly, the energy band matching of CuBi 2 O 4 with E CB = −0.54 eV and E VB = 1.04 eV 46 and AgNbO 3 with E CB = −0.80 eV and E VB = 2.40 eV 47 is most likely to trigger the formation of a CuBi 2 O 4 /AgNbO 3 Z-scheme heterojunction.…”

Section: Introductionmentioning

confidence: 99%

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Piezo-Phototronic Coupling Effect in CuBi₂O₄/AgNbO₃ Z-Scheme Heterojunction for High-Efficiency Decomposition of Organic Dye

Huang,

Liu,

Yang

et al. 2023

ACS Appl. Electron. Mater.

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Silver niobate (AgNbO 3 ) has been widely studied as a new photocatalyst for the degradation of organic pollutants. However, the fast recombination of photoinduced carriers in AgNbO 3 material and its wider band gap are the main factors that restrict the improvement of its photocatalytic performance. Herein, the construction of heterojunction and polarization engineering as effective strategies were used to modulate the migration and separation of photoinduced carriers. CuBi 2 O 4 /AgNbO 3 Z-scheme heterojunction was successfully designed and fabricated, and its outstanding piezo-photocatalytic performances have been demonstrated. CuBi 2 O 4 /AgNbO 3 composites exhibited better degradation performances for RhB solution under visible light irradiation than individual AgNbO 3 . Inspiringly, the RhB could be completely degraded within 60 min by the P-10%CuBi 2 O 4 /AgNbO 3 composite under ultrasonic-assisted illumination, and its reaction rate constant reached 0.0577 min −1 , which is 3.52 times that of AgNbO 3 (0.0164 min −1 ). The synergistic effects of heterojunction, polarization engineering, and ultrasonic vibration in the CuBi 2 O 4 /AgNbO 3 composite were confirmed, and the piezo-phototronic coupling effect in the polarized CuBi 2 O 4 /AgNbO 3 heterojunction significantly enhanced carrier separation, thereby promoting piezo-photocatalysis for organic dye. This work provides broad prospects for enhancing photocatalytic/piezo-photocatalytic performance by combining a narrow band gap semiconductor with ferroelectric materials.

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Section: Trapping Measurementsmentioning

confidence: 57%

Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Piezo-Phototronic Coupling Effect in CuBi₂O₄/AgNbO₃ Z-Scheme Heterojunction for High-Efficiency Decomposition of Organic Dye

Huang,

Liu,

Yang

et al. 2023

ACS Appl. Electron. Mater.

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Piezocatalysts and Piezo‐Photocatalysts: From Material Design to Diverse Applications

Jia,

Li,

Huang

2024

Adv Funct Materials

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Piezocatalysis and piezo‐photocatalysis technology is a continuously developing catalytic technology based on the piezoelectric effect of catalysts, which breaks the barrier between mechanical and chemical energy. The piezoelectric polarization field formed by the mechanical deformation of piezoelectric materials is proven to effectively manipulate band structures, improve the separation of electron‐hole pairs and enhance the catalytic activity, thus alleviating energy crises and environmental issues. Herein, this review first introduces the technology of piezocatalysis and piezo‐photocatalysis, comprehensively summarizes the synthesis methods of piezo(photo)catalysis materials, and analyzes and discusses the measures to optimize the performance of piezo(photo)catalysts. The following systematically summarizes the characteristics and development of the current main piezo(photo)catalytic systems, and discusses the application of first principles calculations in piezo(photo)catalysis in combination with practical researches. Subsequently, the main application progress of piezo(photo)catalysis in environmental remediation, energy conversion, and biomedical therapy fields is presented. In the end, the current challenges, development direction, and future prospects are prospected.

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A response surface modeling and optimization of photocatalytic degradation of 2,4-dichlorophenol in water using hierarchical nano-assemblages of CuBi2O4 particles

Rakshitha

Chethan

Gurupadayya

et al. 2023

Environ Sci Pollut Res

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A novel strategy to enhance the visible light driven photocatalytic activity of CuBi2O4 through its piezoelectric response

Cited by 13 publications

References 63 publications

Piezo-Phototronic Coupling Effect in CuBi₂O₄/AgNbO₃ Z-Scheme Heterojunction for High-Efficiency Decomposition of Organic Dye

Piezo-Phototronic Coupling Effect in CuBi₂O₄/AgNbO₃ Z-Scheme Heterojunction for High-Efficiency Decomposition of Organic Dye

Piezocatalysts and Piezo‐Photocatalysts: From Material Design to Diverse Applications

A response surface modeling and optimization of photocatalytic degradation of 2,4-dichlorophenol in water using hierarchical nano-assemblages of CuBi2O4 particles

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A novel strategy to enhance the visible light driven photocatalytic activity of CuBi2O4 through its piezoelectric response

Cited by 13 publications

References 63 publications

Piezo-Phototronic Coupling Effect in CuBi2O4/AgNbO3 Z-Scheme Heterojunction for High-Efficiency Decomposition of Organic Dye

Piezo-Phototronic Coupling Effect in CuBi2O4/AgNbO3 Z-Scheme Heterojunction for High-Efficiency Decomposition of Organic Dye

Piezocatalysts and Piezo‐Photocatalysts: From Material Design to Diverse Applications

A response surface modeling and optimization of photocatalytic degradation of 2,4-dichlorophenol in water using hierarchical nano-assemblages of CuBi2O4 particles

Contact Info

Product

Resources

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Piezo-Phototronic Coupling Effect in CuBi₂O₄/AgNbO₃ Z-Scheme Heterojunction for High-Efficiency Decomposition of Organic Dye

Piezo-Phototronic Coupling Effect in CuBi₂O₄/AgNbO₃ Z-Scheme Heterojunction for High-Efficiency Decomposition of Organic Dye