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

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(44)

Published: June 19, 2024

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

Language: Английский

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Bimetal doping enhanced polarization electric field in BiFeO3 for piezocatalytic U(Ⅵ) reduction and hydrogen production

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125113 - 125113

Published: Jan. 1, 2025

Language: Английский

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Tip effect and structural disordering in Bi2WO6 for enhanced piezo-photocatalytic nitrogen oxidation to nitric acid

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 339, P. 123148 - 123148

Published: Aug. 9, 2023

Language: Английский

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Review of Bi-based catalysts in piezocatalytic, photocatalytic and piezo-photocatalytic degradation of organic pollutants

Nanoscale, Journal Year: 2023, Volume and Issue: 15(46), P. 18571 - 18580

Published: Jan. 1, 2023

Photocatalysis, as an effective advanced oxidation process, has been widely carried out in water waste treatment, especially the degradation of organic pollutants. However, photocatalytic process is limited by high recombination rate photo-generated carriers. To improve efficiency, piezocatalysis attracted increasing attention, that using lead-free piezoelectric materials, which avoids secondary pollution lead toxicity environment. Bi-based materials have both activity and piezocatalytic activity, can perfectly combine advantages these two catalytic processes to promote Under external mechanical action, catalyst produces a polarized electric field due effect, carriers be effectively separated under electrostatic attraction, thus obtaining more efficient performance. there are still many gaps design, reaction mechanism, development prospects piezo-photocatalysts. Therefore, acquire deeper understanding research status piezo-photocatalysts, we summarize existing literature provide ways piezo-photocatalytic Moreover, this paper points developmental direction piezo-photocatalysis future. Last but not least, also look forward prospect

Language: Английский

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Enhanced piezoelectricity and spectral absorption in Nd-doped bismuth titanate hierarchical microspheres for efficient piezo-photocatalytic H₂ production and pollutant degradation

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 12(3), P. 1753 - 1763

Published: Dec. 20, 2023

Experiments and calculations reveal the key role of Nd in piezoelectric property enhancement bandgap reduction, which unveil piezo-photocatalysis mechanisms.

Language: Английский

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Dissolved oxygen enhanced piezo-photocatalytic performance in Ag dots-modified BaTiO3 nanoparticles for efficient degradation of multiple organic pollutants

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 346, P. 127548 - 127548

Published: April 17, 2024

Language: Английский

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Achieving remarkable piezo-photocatalytic performances in Bi6Fe2Ti3O18/BiOCl S-scheme heterojunction through ferroelectric polarization effect

Applied Materials Today, Journal Year: 2024, Volume and Issue: 39, P. 102308 - 102308

Published: July 1, 2024

Language: Английский

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Harvesting Vibration Energy to Produce Hydrogen Peroxide with Bi₃TiNbO₉ Nanosheets through a Water Oxidation Dominated Dual-Channel Pathway

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(9), P. 3595 - 3607

Published: Feb. 16, 2024

Developing green, efficient, and sustainable techniques to synthesize hydrogen peroxide has always been the challenge faced by researchers. The rising-star piezocatalysis demonstrated be capable of drive redox reactions based on piezoelectric effect therefore may provide novel solutions for H2O2 production through mechanical energy conversion. Herein, bismuth layered compound Bi3TiNbO9 (BTNO) was utilized produce harvesting ultrasound vibration in a pure water system first time. A yield rate 407.05 μmol·g–1·h–1 achieved under ultrasonic conditions (40 kHz, 50 W) without any cocatalysts scavengers, surpassing majority reported piezocatalysts with similar mechanisms. Furthermore, satisfied circulation long-term running stability piezocatalyst BTNO were proved, accumulated concentration could reach 1127 μM after 5 h reaction. response piezoresponse force microscopy (PFM), electrochemical characterization, piezodeposition experiments. On basis band structure analysis, possible pathway generating proposed according radical-trapping atmosphere control experiment results. It found that both oxidation reaction (WOR) oxygen reduction (ORR) contributed H2O2, but direct WOR plays an absolute dominant role. In addition, Ar sparging verified able efficiently enhance generation due enlarged cavitation effect, superior its photocatalysis synthesizing H2O2. is hoped this work can deep insights into offer clues synthesis peroxide.

Language: Английский

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Intentionally Introducing Oxygen Vacancies and Ti³⁺ Defects on the Surface of Bi₄Ti₃O₁₂ Nanosheets for Promoting the Photoreduction of CO₂ to CH₃OH

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(3), P. 3012 - 3023

Published: Jan. 29, 2024

Using perovskite photocatalytic reduction of CO2 and H2O to produce hydrocarbon fuels offers an attractive method solve the energy crisis greenhouse effect. Bi4Ti3O12 (BTO) has received much attention in field photocatalysis due its unique layered structure, but it still faces many challenges such as weak photoresponse severe photogenerated carrier recombination. In this paper, nanosheets with different concentrations surface oxygen vacancies (VO) Ti3+ defect were prepared by molten salt NaBH4 high-temperature (HBTO). Surface defects formed obvious traps on HBTO surface, reduced recombination rate electrons holes, adjusted band gap structure (from 3.09 2.62 eV), which improved visible light utilization HBTO. The decrease photoinduced improvement response significantly enhanced activity under light. CH3OH yield optimized HBTO-4 (NaBH4:Bi4Ti3O12 = 1:5) was 4.90 μmol·g–1·h–1, about 3.5 times that original BTO. Meanwhile, electronic density states (DOS), work function calculated functional theory (DFT). This study provided effective strategy for designing preparing photocatalysts rich efficient conversion solar energy.

Language: Английский

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Synergistic polarity interaction and structural reconstruction in Bi2MoO6/C3N4 heterojunction for enhancing piezo-photocatalytic nitrogen oxidation to nitric acid

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 351, P. 123977 - 123977

Published: April 24, 2024

Language: Английский

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