文献类型：期刊文献

英文题名：Removal of Gaseous Elemental Mercury in a Diffusion Electrochemical Reactor Based on a Three-Dimensional Electrode

作者：Yang, Jie[1];Cao, Limei[1,2];Wang, Qing[1];Zhou, Jiacheng[1];Shen, Qicheng[1];Yang, Ji[1,2]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2020

卷号：5

期号：12

起止页码：6903

外文期刊名：ACS OMEGA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000523299700070)】；

基金：This research is based upon the work supported by the National Natural Science Foundation of China (Project No. 21307032) and "the Fundamental Research Funds for the Central Universities." Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the view of the supporting organizations.

语种：英文

摘要：A novel three dimensional electrochemical reactor with nickel foam and carbon paper used as the anode and stainless steel mesh used as the cathodewas studied in this research. Oxidation mercury removal is performed in a self-made diffusion reactor. The influence of the electrolysis voltage, pH, gas flow, and other factors on mercury removal is discussed, as well as the mechanism of anodization mercury removal is explored. The experimental results show that nickel foam has a significant effect on the removal of Hg-0, and 80-85% removal can be achieved under optimal conditions. Meanwhile, nickel foam has stable performance at high temperatures (60 degrees C) and in strong alkaline electrolytes, which also play an effective role in anodized oxidation. Although carbon paper is more stable than nickel foam and less affected by experimental factors, it is sensitive to reaction temperature and can only work in the neutral electrolyte at low temperatures. In contrast, electrochemical catalytic oxidation technology using the nickel foam is more promising for Hg-0 removal.