Construction of a Visible-Light-Response Photocatalysis–Self-Fenton Degradation System of Coupling Industrial Waste Red Mud to Resorcinol–Formaldehyde Resin

Molecules, Journal Year: 2024, Volume and Issue: 29(7), P. 1514 - 1514

Published: March 28, 2024

Heterogeneous photocatalysis–self-Fenton technology is a sustainable strategy for treating organic pollutants in actual water bodies with high-fluent degradation and high mineralization capacity, overcoming the limitations of safety risks caused by adding external iron sources hazardous chemicals homogeneous Fenton reaction injecting high-intensity energy fields photo-Fenton reaction. Herein, photo-self-Fenton system based on resorcinol–formaldehyde (RF) resin red mud (RM) was established to generate hydrogen peroxide (H2O2) situ transform into hydroxy radical (•OH) efficient tetracycline (TC) under visible light irradiation. The capturing experiments electron spin resonance (ESR) confirmed that hinge enhanced performance this superior H2O2 yield (499 μM) through oxygen reduction process (ORR) two-step single-electron over concentration •OH due activation effect RM. In addition, Fe2+/Fe3+ cycles are accelerated photoelectrons effectively initiate Finally, possible pathways were proposed via liquid chromatography-mass spectrometry (LC-MS). This study provides new idea environmental recovery waste-based heterogeneous photocatalytic self-Fenton system.

Language: Английский

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Photocatalytic production of H2O2 and its in-situ environmental applications

Research on Chemical Intermediates, Journal Year: 2024, Volume and Issue: 50(7), P. 2917 - 2969

Published: July 1, 2024

Language: Английский

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Synergistic redox reactions toward co‐production of H₂O₂ and value‐added chemicals: Dual‐functional photocatalysis to achieving sustainability

SusMat, Journal Year: 2024, Volume and Issue: 4(3)

Published: April 11, 2024

Abstract Integrating H 2 O evolution with oxidative organic synthesis in a semiconductor‐driven photoredox reaction is highly attractive since and high‐value chemicals can be concurrently produced using solar light as the only energy input. The dual‐functional photocatalytic approach, free from sacrificial agents, enables simultaneous production of chemicals. This strategy promises green sustainable minimal greenhouse gas emissions. In this review, we first elucidate fundamental principles cooperative integration selective oxidation utilization photoexcited electrons holes over semiconductor‐based photocatalysts. Afterwards, thorough review on recent advancements value‐added presented. Notably, in‐depth discussions insights into techniques for unravelling mechanisms are elucidated. Finally, critical challenges prospects thriving field comprehensively discussed. It envisioned that will serve pivotal guidance rational design such system, thereby further stimulating development economical environmentally benign production.

Language: Английский

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Bioinspired artificial antioxidases for efficient redox homeostasis and maxillofacial bone regeneration

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 20, 2025

Abstract Reconstructing large, inflammatory maxillofacial defects using stem cell-based therapy faces challenges from adverse microenvironments, including high levels of reactive oxygen species (ROS), inadequate oxygen, and intensive inflammation. Here, inspired by the reaction mechanisms intracellular antioxidant defense systems, we propose de novo design an artificial antioxidase Ru-doped layered double hydroxide (Ru-hydroxide) for efficient redox homeostasis bone regeneration. Our studies demonstrate that Ru-hydroxide consists hydroxyls-synergistic monoatomic Ru centers, which efficiently react with collaborate hydroxyls rapid proton electron transfer, thus exhibiting efficient, broad-spectrum, robust ROS scavenging performance. Moreover, can effectively sustain cell viability osteogenic differentiation in elevated environments, modulating microenvironment during tissue regeneration male mice. We believe this development offers a promising avenue designing antioxidase-like materials to treat various inflammation-associated disorders, arthritis, diabetic wounds, enteritis, fractures.

Language: Английский

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Regulating Benzothiadiazole-Based Covalent–Organic Frameworks to Boost Hydrogen Peroxide Photosynthesis and Pathogenic Bacterial Elimination

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 811 - 819

Published: Jan. 31, 2025

Language: Английский

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