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基于g-C3N4异质结的光催化制氢技术研究进展

Research Progress of Photocatalytic Hydrogen Production Technology Based on g-C3N4 Heterojunction Photocatalysts

  • 摘要:
    目的 化石燃料的使用对地球气候环境与能源造成了巨大威胁。为缓解环境污染、应对气候变化、节约地球能源,亟需发展可再生绿色能源的生成技术。
    方法 氢能源是一种零碳排放的清洁能源,利用不竭的太阳光驱动的光催化制氢技术被视为绿色的能源制造技术,具有减少碳排放与满足能源需要的双重应用潜力。高活性光催化剂是光催化产氢技术的核心研究内容。
    结果 文章阐述了基于石墨相氮化碳(g-C3N4)光催化剂产氢技术的研究进展,讨论了g-C3N4的结构、合成、优缺点及其改性策略。重点分析了基于金属氧化物、金属硫化物、金属氧酸盐、金属有机框架材料与g-C3N4构建异质结的方法及其产氢性能与机理。
    结论 对g-C3N4异质结光催化剂的制氢性能进行了总结与展望,以期为未来氢能源建设方向提供一定参考。

     

    Abstract:
    Objective The use of fossil fuels poses a significant threat to the earth's climate and energy. To mitigate environmental pollution, address climate change, and conserve earth's energy resources, there is an urgent need to develop renewable green energy generation technologies.
    Method Hydrogen energy is a zero-carbon emission clean energy source. Photocatalytic hydrogen production technology driven by inexhaustible sunlight was regarded as a green energy generation technology, which has the dual application potential of reducing carbon emissions and meeting energy needs. High-activity photocatalysts were the core of research in photocatalytic hydrogen production technology.
    Result The paper focuses on recent research progress on hydrogen production made on graphitic nitrogen carbide (g-C3N4) photocatalysts, and discusses the structure, synthesis, advantages, disadvantages, and modification strategies of g-C3N4 photocatalysts. The methods of heterojunction construction based on metal oxides, metal sulfides, oxometallates, metal-organic framework materials and g-C3N4 and their hydrogen production properties and mechanisms are analyzed.
    Conclusion The hydrogen production properties of g-C3N4 heterojunction photocatalysts are summarized and prospected in order to provide some reference for the future hydrogen energy construction direction.

     

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