Research progress of carbon dots in photocatalytic hydrogen production

被引：0
|
作者：
Wang Y. [1 ]
Zhang W. [1 ]
Li Y. [1 ]
Jiang G. [1 ]
Yao W. [2 ]
机构：
[1] College of New Energy and Materials, China University of Petroleum, Beijing
[2] Department of Chemistry, Tsinghua University, Beijing
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 06期
关键词：
Catalysis; Hydrogen; Photochemistry; Solar energy; Sustainability;
D O I：
10.16085/j.issn.1000-6613.2020-1886
中图分类号：
学科分类号：
摘要：
Photocatalytic water splitting is an ideal way to obtain clean energy-hydrogen. The development of efficient photocatalysts has become a research hotspot in this field. Carbon dots have unique up-conversion properties, visible light response and tunable band gap, as well as good water solubility, no biological toxicity and excellent photoluminescence properties. Therefore, its application in the field of photocatalytic hydrogen production has attracted great attention. A variety of methods for synthesizing carbon dots have been studied, including top-down and bottom-up methods. Modification methods such as surface passivation, surface functionalization or element doping can improve the photoelectric performance and corrosion resistance of carbon dots. This paper reviews the literature on the preparation methods, modification methods and the application of carbon dots in the field of photocatalytic hydrogen production in recent years. It is concluded that carbon dots can play the roles of photocatalyst, co-catalyst, photosensitizer and electron transfer mediator of Z-scheme structure in the application of photocatalytic hydrogen production. At the same time, there exists the problems of unclear mechanism and low hydrogen production efficiency. Designing and large-scale producing of carbon dots with precise structures and specific functions as well as exploring the mechanism in the process of photocatalytic hydrogen production will be focused in the future. © 2021, Chemical Industry Press Co., Ltd. All right reserved.
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页码：2952 / 2961
页数：9
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