Recent advancements in the use of novel piezoelectric materials for piezocatalytic and piezo-photocatalytic applications

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 341, P. 123335 - 123335

Published: Sept. 28, 2023

Language: Английский

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Doping Engineering to Modulate Lattice and Electronic Structure for Enhanced Piezocatalytic Therapy and Ferroptosis

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(38)

Published: July 12, 2023

Piezocatalytic therapy, which generates reactive oxygen species (ROS) under mechanical force, has garnered extensive attention for its use in cancer therapy owing to deep tissue penetration depth and less O2 -dependence. However, the piezocatalytic therapeutic efficiency is limited poor piezoresponse, low separation of electron-hole pairs, complicated tumor microenvironment (TME). Herein, a biodegradable, porous Mn-doped ZnO (Mn-ZnO) nanocluster with enhanced piezoelectric effect constructed via doping engineering. Mn-doping not only induces lattice distortion increase polarization but also creates rich vacancies (OV ) suppressing recombination leading high-efficiency generation ROS ultrasound irradiation. Moreover, shows TME-responsive multienzyme-mimicking activity glutathione (GSH) depletion ability mixed valence Mn (II/III), further aggravating oxidative stress. Density functional theory calculations show that can improve performance enzyme Mn-ZnO due presence OV . Benefiting from boosting GSH ability, significantly accelerate accumulation lipid peroxide inactivate peroxidase 4 (GPX4) induce ferroptosis. The work may provide new guidance exploring novel sonosensitizers therapy.

Language: Английский

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Mechanically driven water splitting over piezoelectric nanomaterials

Chem Catalysis, Journal Year: 2024, Volume and Issue: 4(2), P. 100901 - 100901

Published: Jan. 26, 2024

Language: Английский

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Unveiling the synergistic role of nitrogen vacancies and Z-scheme heterojunction in g-C3N4/β-Bi2O3 hybrids for enhanced CO2 photoreduction

Nano Energy, Journal Year: 2024, Volume and Issue: 124, P. 109494 - 109494

Published: March 13, 2024

Language: Английский

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Piezo‐catalysis in BiFeO₃@In₂Se₃ Heterojunction for High‐Efficiency Uranium Removal

Small, Journal Year: 2024, Volume and Issue: 20(20)

Published: Jan. 25, 2024

Abstract Piezo‐catalysis emerges as an efficient, safe, and affordable strategy for removing hazardous substances from aquatic environments. Here, the BiFeO 3 @In 2 Se heterojunction demonstrates remarkable prowess a piezo‐catalyst, enabling high‐efficiency removal of uranium (U) U(VI)‐containing water. A total U(VI) efficiency 94.6% can be achieved under ultrasonic vibration without any sacrificial agents. During entire catalytic process, piezo‐induced electrons, hydroxyl radicals, superoxide radicals play important roles in removal, while generated H O is responsive to transformation soluble into insoluble (UO )O •2H UO . Furthermore, auxiliary illumination accelerate increase free charges, piezo‐catalyst retain more charges. This leads improved 98.8% significantly increased reaction rate constant. study offers comprehensive analysis fabrication piezo‐catalysts or extraction

Language: Английский

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Structure-Tailored Superlattice Bi7Ti4NbO21: Coupling Octahedral Tilting and Rotation Induced High Ferroelectric Polarization for Efficient Piezo-photocatalytic CO2 Reduction

Advanced Powder Materials, Journal Year: 2025, Volume and Issue: unknown, P. 100265 - 100265

Published: Jan. 1, 2025

Language: Английский

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Piezoelectric Biomaterial with Advanced Design for Tissue Infection Repair

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 31, 2025

Abstract Bacterial infection has become the most dangerous factor in tissue repair, which strongly affects regeneration efficiency and wellness of patients. Piezoelectric materials exhibit outstanding advantage producing electrons without external power supply. The ability electron enrichment reactive oxygen species generation through noninvasive stimulations enables piezoelectric potential applications antibacterial. Many studies have proved feasibility as a functional addition antibacterial biomaterial. In fact, numerous with ingenious designs are reported to be effective processes. This review summarizes mechanisms piezoelectric, illuminating their combating bacteria. Recent advancement design construction biomaterial including defect engineering, heterojunction, synergy metal composite scaffold configuration thoroughly reviewed. Moreover, therapeutic effects common tissues requirements introduced, such orthopedics, dental, wound healing. Finally, development prospects points deserving further exploration listed. is expected provide valuable insight into relationship between processes materials, inspiring constructive this emerging scientific discipline.

Language: Английский

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Pulsed‐Laser‐Triggered Piezoelectric Photocatalytic CO₂ Reduction over Tetragonal BaTiO₃ Nanocubes

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(45)

Published: Aug. 2, 2023

Abstract The recombination of photoinduced carriers in photocatalysts is considered one the biggest barriers to increase photocatalytic efficiency. Piezoelectric open a new route realize rapid carrier separation by mechanically distorting lattice piezoelectric nanocrystals form potential within nanocrystals, generally requiring external force (e.g., ultrasonic radiation, mechanical stirring, and ball milling). In this study, low‐power UV pulsed laser (PL) (3 W, 355 nm) as light source can trigger CO 2 reduction tetragonal BaTiO 3 (BTO‐T) absence an applied force. tremendous transient pressure (5.7 × 10 7 Pa, 2.7 W) nm PL not only bends energy band BTO‐T, thus allowing reactions that cannot theoretically occur take place, but also induces built‐in electric field determine efficient separation. On basis, PL‐triggered realizes highest reported performance, reaching millimole level yield 52.9 mmol g −1 h achieving continuous catalytic system. method study promising contribute design reactions.

Language: Английский

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Integration of Single‐Atom Catalyst with Z‐Scheme Heterojunction for Cascade Charge Transfer Enabling Highly Efficient Piezo‐Photocatalysis

Advanced Science, Journal Year: 2023, Volume and Issue: 10(28)

Published: Aug. 6, 2023

Piezo-assisted photocatalysis (namely, piezo-photocatalysis), which utilizes mechanical energy to modulate spatial and distribution of photogenerated charge carriers, presents a promising strategy for molecule activation reactive oxygen species (ROS) generation toward applications such as environmental remediation. However, similarly photocatalysis, piezo-photocatalysis also suffers from inferior separation utilization efficiency. Herein, Z-scheme heterojunction composed single Ag atoms-anchored polymeric carbon nitride (Ag-PCN) SnO2-x is developed efficient carrier transfer/separation both within the catalyst between surface molecules (O2 ). As revealed by dynamics analysis theoretical simulations, synergy atoms initiates cascade electron transfer Ag-PCN then O2 adsorbed on Ag. With ultrasound irradiation, polarization field generated piezoelectric hybrid further accelerates regulates pathway. result, Ag-PCN/SnO2-x efficiently activates into ·O2- , ·OH, H2 under co-excitation visible light ultrasound, are consequently utilized trigger aerobic degradation refractory antibiotic pollutants. This work provides maneuver integrating single-atom catalysts (SACs) with heterojunction.

Language: Английский

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Physical mixing of piezo-electrocatalysts and graphene oxide to promote CO2 conversion

Nano Energy, Journal Year: 2023, Volume and Issue: 115, P. 108719 - 108719

Published: July 17, 2023

Language: Английский

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