Catalytic Mechanism of Nanocrystalline and Amorphous Matrix in Fe‐Based Microwires for Advanced Oxidation

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Abstract The sustainable management of water resources is a critical global challenge, with advanced oxidation processes emerging as promising solution for addressing environmental pollution. However, the clear trade‐off between catalytic activity and stability in existing catalysts hinders their broader application. In this study, nanocrystalline/amorphous (N/A) microwire catalyst developed, featuring design that regulates nanocrystal size while preserving pure amorphous matrix. Unlike brittle annealed N/A microwires subjected to structural relaxation, as‐cast demonstrate outstanding performance oxidation. They can completely degrade pollutants within 60 s maintain up 40 reuse cycles. Theoretical calculations material characterizations reveal exceptional properties arise from combined effects residual stresses stored matrix synergistic effect nanocrystals phases. Moreover, optimally sized nanocrystalline phase optimizes atomic arrangement induces an structure low coordination number, providing abundant active sites. This also enhances adsorption characteristics persulfate accelerates electron transfer. These findings offer novel framework developing efficient stable wastewater treatment.

Language: Английский

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Organic‐inorganic CdS/CBT S‐scheme heterojunction with enhanced charge transfer for efficient photocatalytic hydrogen production

InfoScience., Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Abstract Owing to its ability reduce charge recombination and enhance redox capability, the step‐scheme (S‐scheme) heterojunction has manifested appealing prospect for photocatalysis. In this work, an organic‐inorganic S‐scheme based on CdS nanorods conjugated polymer 2‐hexyl‐carbazole‐benzothiadiazole (CBT) is constructed. The obtained catalyst exhibited impressive photocatalytic hydrogen production performance (14.02 mmol g −1 h ) with a high apparent quantum efficiency of 5.4% at 420 nm. transfer mechanism enhancement in heterojunctions were investigated by density functional theory calculations, situ X–ray photoelectron spectroscopy, Kelvin probe force microscopy. successful construction formation Cd–S bonds interface effectively promoted separation carriers.

Language: Английский

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N-doped BC/Ferrite collaborative degradation of antibiotics: Synthesis and mechanism research

Materials Science in Semiconductor Processing, Journal Year: 2025, Volume and Issue: 194, P. 109527 - 109527

Published: April 4, 2025

Language: Английский

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Integrated catalytic membranes for advanced antibiotic wastewater treatment: Synergistic separation-degradation mechanisms and next-generation design

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133440 - 133440

Published: May 1, 2025

Language: Английский

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