<p>This study presents the synthesis of a ternary CeO<sub>2</sub>-AuNR-Cu<sub>2</sub>O Janus structure with dual Schottky junctions, achieved by sequential growth of CeO<sub>2</sub> and Cu<sub>2</sub>O crystal domains on AuNR seeds. The dual Schottky junctions and the Janus-type CeO<sub>2</sub>-Cu<sub>2</sub>O P-N heterostructure led to significant enhancement in charge separation and suppress of the electron-hole recombination. The localized surface plasmon resonance (LSPR) effect of AuNR and the Z-scheme electron transfer pathway further boost the photocatalytic performance. This enhancement was demonstrated through the model photocatalytic degradation of methylene blue (MB) in aqueous solution. The proposed strategy not only improves photocatalytic efficiency but also provides insights into electron migration mechanisms, offering new opportunities for advanced nanostructure development in various applications.</p>

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Synthesis of highly-ordered ternary CeO2-AuNR-Cu2O Janus structure with dual Schottky junctions for highly efficient photocatalysis

  • Baowei Shen,
  • Yu Xia,
  • Yefan Zhou,
  • Junsheng Wang,
  • Yuhua Feng,
  • Wenjia Xu

摘要

This study presents the synthesis of a ternary CeO2-AuNR-Cu2O Janus structure with dual Schottky junctions, achieved by sequential growth of CeO2 and Cu2O crystal domains on AuNR seeds. The dual Schottky junctions and the Janus-type CeO2-Cu2O P-N heterostructure led to significant enhancement in charge separation and suppress of the electron-hole recombination. The localized surface plasmon resonance (LSPR) effect of AuNR and the Z-scheme electron transfer pathway further boost the photocatalytic performance. This enhancement was demonstrated through the model photocatalytic degradation of methylene blue (MB) in aqueous solution. The proposed strategy not only improves photocatalytic efficiency but also provides insights into electron migration mechanisms, offering new opportunities for advanced nanostructure development in various applications.