Accumulation of Long‐Lived Photogenerated Holes at Copper Yolk‐Shell Heterojunctions via Heterogeneous Contraction and Reduction Strategies for Enhanced Photocatalytic Oxidation DOI Creative Commons
Tiancheng Li,

Lingxiang Zhao,

Faze Chen

et al.

Energy & environment materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Active holes outperform photoelectron‐mediated oxygen reduction in degrading recalcitrant organics under anaerobic conditions, yet their utilization is limited by rapid charge recombination. This challenge was addressed through Cu‐based yolk‐double‐shell microspheres (Cu/Cu 2 O@C‐2shell) engineered via heterogeneous contraction and strategies. Work function analyses confirm Schottky junction‐driven electron transfer from Cu O to Cu, generating an internal electric field that suppresses backflow. Density functional theory reveals Cu‐mediated enhancement of near‐Fermi states (Cu 3d orbitals) a directional → C pathway, spatially isolating O. Finite‐difference time‐domain simulations reveal light‐induced gradients the dual‐shell architecture: 0 ‐mediated localized surface plasmon resonance effect enhances concentration, while hierarchical interfaces create outward‐to‐inward gradient, directing migration inward stabilizing oxidative at surface. The optimized O)@C‐2shell exhibits 38‐fold higher tetracycline degradation sunlight versus benchmarks, with treated water supporting Escherichia coli survival wheat growth. study provides design strategy for accumulation long‐lived on semiconductor photocatalysts.

Language: Английский

Accumulation of Long‐Lived Photogenerated Holes at Copper Yolk‐Shell Heterojunctions via Heterogeneous Contraction and Reduction Strategies for Enhanced Photocatalytic Oxidation DOI Creative Commons
Tiancheng Li,

Lingxiang Zhao,

Faze Chen

et al.

Energy & environment materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Active holes outperform photoelectron‐mediated oxygen reduction in degrading recalcitrant organics under anaerobic conditions, yet their utilization is limited by rapid charge recombination. This challenge was addressed through Cu‐based yolk‐double‐shell microspheres (Cu/Cu 2 O@C‐2shell) engineered via heterogeneous contraction and strategies. Work function analyses confirm Schottky junction‐driven electron transfer from Cu O to Cu, generating an internal electric field that suppresses backflow. Density functional theory reveals Cu‐mediated enhancement of near‐Fermi states (Cu 3d orbitals) a directional → C pathway, spatially isolating O. Finite‐difference time‐domain simulations reveal light‐induced gradients the dual‐shell architecture: 0 ‐mediated localized surface plasmon resonance effect enhances concentration, while hierarchical interfaces create outward‐to‐inward gradient, directing migration inward stabilizing oxidative at surface. The optimized O)@C‐2shell exhibits 38‐fold higher tetracycline degradation sunlight versus benchmarks, with treated water supporting Escherichia coli survival wheat growth. study provides design strategy for accumulation long‐lived on semiconductor photocatalysts.

Language: Английский

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