Research progress of photocatalytic Hg0 oxidation in coal combustion flue gas

被引：0
|
作者：
Yang Z. [1 ]
Zhao J. [1 ]
Li H. [1 ]
机构：
[1] School of Energy Science and Engineering, Central South University, Changsha
来源：
Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2023年 / 51卷 / 01期
关键词：
coal combustion; flue gas; Hg; oxidate; photocatalysis; removal;
D O I：
10.13245/j.hust.239033
中图分类号：
学科分类号：
摘要：
The application of photocatalysis to achieve the catalytic oxidation of elemental mercury(Hg0) in coal combustion flue gas is an effective way to achieve mercury pollution control in coal combustion flue gas．From these perspectives，the photocatalytic Hg0 oxidation technology as reported in previous studies were summarized，which focus on the performance and research progress of titanium-based，bismuth-based，silver-based and metal sulfide semiconductors in the photocatalytic oxidation of Hg0．The oxidation mechanism of Hg0 over semiconductors and the theoretical mechanism of different modification methods to enhance the Hg0 oxidation activities of different photocatalysts were discussed．Based on the theoretical mechanism，the application of photocatalytic technology in the mercury pollution prevention and control in coal combustion flue gas was analyzed and prospected．Subsequently，effective methods to overcome the technical bottleneck impeding the photocatalytic oxidation of Hg0 in coal combustion flue gas was proposed，which can provide references for the further development of photocatalytic oxidation materials and technologies for Hg0 degradation in coal combustion flue gas. © 2023 Huazhong University of Science and Technology. All rights reserved.
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页码：82 / 91
页数：9
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