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The Z-Scheme of Electron Transport in Photosynthesis01:34

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Advancing Photocatalytic Overall Water Splitting with Z-Scheme Heterojunctions by Interfacial Manipulation.

Jie Chen1,2,3, Xiangjiu Guan1,2, Daming Zhao4

  • 1International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.

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This review explores interfacial manipulation in Z-scheme heterojunctions for efficient photocatalytic overall water splitting (POWS). Optimizing interfaces is key to enhancing solar hydrogen production via advanced photocatalysts.

Keywords:
Z‐scheme heterojunctioncharge extractioncharge separationinterfacial manipulationphotocatalytic overall water splitting

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Area of Science:

  • Materials Science
  • Photocatalysis
  • Renewable Energy

Background:

  • Photocatalytic overall water splitting (POWS) is crucial for solar hydrogen production.
  • Z-scheme heterojunctions offer advantages like broad solar spectrum absorption and suitable redox potentials for POWS.
  • Interfacial charge transfer processes significantly impact POWS efficiency in Z-scheme heterojunctions.

Purpose of the Study:

  • To review interfacial manipulation strategies in Z-scheme heterojunctions for enhanced POWS.
  • To explore semiconductor-semiconductor and semiconductor-water interfaces in Z-scheme systems.
  • To provide insights into characterization techniques, challenges, and future directions in POWS.

Main Methods:

  • Review of existing literature on Z-scheme heterojunctions for POWS.
  • Analysis of interfacial charge transfer mechanisms.
  • Discussion of advanced characterization techniques for interfacial studies.

Main Results:

  • Interfacial manipulation is critical for improving charge transfer and POWS performance.
  • Strategies for optimizing semiconductor-semiconductor and semiconductor-water interfaces are summarized.
  • Advanced characterization methods aid in understanding interfacial processes.

Conclusions:

  • Effective interfacial engineering is essential for developing efficient Z-scheme photocatalysts for POWS.
  • Further research should focus on overcoming current challenges and exploring new directions in interface design.
  • Optimized Z-scheme heterojunctions hold significant promise for scalable solar hydrogen production.