Recent progress in metallic-oxygen semiconductors systems towards solar-hydrogen production and investigating mechanisms through different characterization techniques
Lingpu Jia , Jafar Hussain Shah , Yuan Luo , Lijuan Huang , Wenlong Liao , Kunping Liu , Zhiming Wang
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引用次数: 0
Abstract
Renewable energy is the only viable way to effectively address the global challenges of energy crisis and climate change. Among different resources of renewable energies, artificial photosynthesis is considered as the potential candidate to mitigate both challenges simultaneously by converting solar energy into chemical energy. Hydrogen (H2) energy is the first choice in the conversion and utilization of solar energy since it can be carried out at room temperature with the advantages of environmentally friendly and low-energy consuming. Up to now, numerous metallic-oxygen group semiconductors have been designed as photocatalyst to produce H2 from water under light irradiation. However, the conversion efficiency of solar energy to H2 energy is still very low, which is closely related to light absorption properties, electron hole separation, and surface reaction efficiency. Based on this, this review aims to summarize the strategies developed to improve the H2 production efficiency by photocatalytic water decomposition from the perspective of band structure regulation, photogenerated charges separation efficiency, and surface reactivity. Besides, the review highlights characterization methods involved in investigating and studying the photocatalytic mechanism trilogy. This review provides detailed understanding about designing photocatalytic systems and predicting the efficiency to researchers from different field of science. It also discusses that how to study the effective theoretical basis and analytical methods for selecting photocatalytic H2 production materials based on metallic-oxygen group semiconductors.
可再生能源是有效应对全球能源危机和气候变化挑战的唯一可行途径。在各种可再生能源中，人工光合作用被认为是通过将太阳能转化为化学能，同时缓解这两个挑战的潜在候选方案。氢（H）能是太阳能转化和利用的首选，因为它可以在室温下进行，具有环保和低能耗的优点。迄今为止，已有许多金属氧族半导体被设计成光催化剂，在光照射下从水中产生氢气。然而，太阳能到 H 能的转化效率仍然很低，这与光吸收特性、电子空穴分离和表面反应效率密切相关。基于此，本综述旨在从能带结构调控、光生电荷分离效率和表面反应活性的角度，总结提高光催化水分解产生 H 的效率的策略。此外，综述还重点介绍了调查和研究光催化机理三部曲所涉及的表征方法。这篇综述让不同科学领域的研究人员详细了解了光催化系统的设计和效率预测。它还讨论了如何研究有效的理论基础和分析方法，以选择基于金属氧族半导体的光催化制氢材料。
期刊介绍：
Materials Today Physics is a multi-disciplinary journal focused on the physics of materials, encompassing both the physical properties and materials synthesis. Operating at the interface of physics and materials science, this journal covers one of the largest and most dynamic fields within physical science. The forefront research in materials physics is driving advancements in new materials, uncovering new physics, and fostering novel applications at an unprecedented pace.
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