Crystal OH boosting piezocatalytic H2O2 synthesis by Bi3O(PO4)2OH from pure water for atrazine degradation

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132786 - 132786

Published: April 1, 2025

Language: Английский

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FeIII-Driven Self-Cycled Fenton via Contact-Electro-Catalysis for Water Purification

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

While Self-cycled Fenton (SC-Fenton) systems represent an innovative advancement in water purification technologies, their practical implementation remains constrained by inefficient in-situ H2O2 generation. To address this limitation, we developed a mechano-driven contact-electro-catalysis (CEC) platform employing fluorinated ethylene propylene (FEP) as triboelectric catalyst. Under ultrasound irradiation, system achieves exceptional generation rate of 7.67 mmol·gcat–1·h–1, outperforming conventional piezo-catalysis systems. Mechanistic studies reveal that built interfacial electric field generated on FEP surface effectively reduces the free energy for indirect 2e– oxidation pathway. This unique characteristic promotes hydroxyl radical (*OH) and enhances its subsequent recombination into H2O2. The strategic integration FeIII catalytic initiator with CEC enables establishment SC-Fenton reaction (FeIII/FEP/CEC). Notably, contact-electrification electrons accumulated interface drive efficient FeIII/FeII redox cycling, achieving remarkable degradation sulfadiazine at 0.125 min–1. enhanced performance stems from FeIII-mediated amplification dissociative (•OH) study provides fundamental insights underlying mechanisms mediated FeIII-initiated reaction, offering new possibilities sustainable processes.

Language: Английский

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Molten-salt-induced structural heterogeneity of carbon nitride for efficient photocatalytic H2O2 production

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(77), P. 10732 - 10735

Published: Jan. 1, 2024

A molten-salt-induced structural heterogeneity strategy was developed to construct molecular heterostructured carbon nitride with intimately connected heptazine and triazine units, which effectively accelerate charge transport suppress carrier recombination. Consequently, the prepared CN-2 exhibits significantly enhanced photocatalytic H

Language: Английский

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Ultrasound-Activated Near-Infrared-II Afterglow Luminescence for Precise Cancer Imaging

ACS Applied Bio Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Afterglow fluorescence imaging has been extensively assessed in ultrasensitive bioimaging. Since it eliminates the need for real-time excitation light and thereby circumvents autofluorescence background of tissue, holds tremendous potential accurate biomedical imaging. However, current afterglow probes are rare emit only visible to near-infrared (NIR) range, which is inadequate vivo To resolve this issue, an ultrasound (US)-activated NIR-II luminescence probe (NPs-Ce4-SN) emitting with a peak at ∼1100 nm was developed. This nearly 400 red-shifted compared other reported probes. Of note, after US termination, NPs-Ce4-SN undergoes energy transformation produce 1O2 subsequently internal oxidation-reduction reaction afterglow, generating high signal-to-noise ratio high-penetration depth In vitro experiments revealed that good biocompatibility deep tissue penetration depth, suggesting diagnostic strategy tumor ratio.

Language: Английский

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Dual-Channel hydrogen peroxide Piezo-Photosynthesis over BaTiO3-CdS S-scheme heterojunction by the polarization electric field

Applied Surface Science, Journal Year: 2024, Volume and Issue: 685, P. 162064 - 162064

Published: Dec. 10, 2024

Language: Английский

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