摘要
使用单一光催化剂一步激发实现水分解是大规模生产可持续氢气的一种简单且具有成本效益的方法,为实现“碳中和”提供了重要动力。技术经济研究表明,必须达到最低5%的太阳能-氢气能量转换效率,该工艺在经济上才具有竞争力。要实现这一目标,就需要制造在阳光下具有足够活性的光催化剂,一般由具有半导体性质的无机金属氧化物构成。本工作综述了应用于光催化剂相关的半导体和共催化剂的研究进展、开发窄带隙光催化剂的必要性、研究目标和研究现状、现有窄带隙光催化剂设计的不足之处并作出该研究方向的展望。
Using a single photocatalyst for a one-step excitation to achieve water decomposition is a simple and cost-effective method for large-scale production of sustainable hydrogen and provides an vital impetus for achieving"carbon neutrality".Technical and economic studies have shown that a minimum 5%solar-to-hydrogen energy conversion efficiency is required for the process to be economically competitive.To achieve this goal,it is necessary to create photocatalysts that are sufficiently active in sunlight,typically composed of inorganic metal oxides with semiconducting properties.In this work,the progress of research on semiconductors and catalysts applied in photocatalysts,the necessity of developing narrow-band gap photocatalysts,the research objectives and status of research,the shortcomings of existing narrow-band gap photocatalysts designs,and the prospects of this research direction are reviewed.
作者
白咫杜
杨妍
贺旭溪
张童童
张立琛
Bai Zhidu;Yang Yan;He Xuxi;Zhang Tongtong;Zhang Lichen(Chemical Science&Engineering College,North Minzu University,Yinchuan 750021,China)
出处
《山东化工》
CAS
2023年第20期87-89,94,共4页
Shandong Chemical Industry
关键词
光催化
太阳能
水分解
无机金属氧化物
photocatalysis
solar energy
water decomposition
inorganic metal oxides
