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Received August 16, 2019
Accepted January 5, 2020
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Molybdenum trioxide impregnated carbon aerogel for gaseous elemental mercury removal
Yang Ling1
Xiaokun Man2
Wenbo Zhang1
Daolei Wang1†
Jiang Wu1 3†
Qizhen Liu4
Mingyan Gu5
Yuyu Lin5
Ping He1
Tao Jia1
1College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China 2State Grid Shandong Electric Power Company Construction Company, Jinan 250022, China 3Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China 4Shanghai Environment Monitoring Center, Shanghai 200030, China 5School of Energy and Environmental Engineering, Anhui University of Technology, Maanshan 243002, China
1584718906@qq.com
Korean Journal of Chemical Engineering, April 2020, 37(4), 641-651(11), 10.1007/s11814-020-0481-x
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Abstract
A novel gaseous elemental mercury (Hg0) removal agent was successfully synthesized via impregnation method, by using molybdenum trioxide (MoO3) as the active component and carbon aerogel (CA) as the carrier. The as-prepared samples maintained a large specific surface area and excellent pore structure of the pure carbon aerogel, so that MoO3 was better dispersed to obtain enhanced Hg0 removal performance. The maximum efficiency of elemental mercury removal was about 74%, achieved by Mo/C500 sample at 300 °C, while it still had good ability (nearly 60%) in the range of 500-700 °C. The mechanism of mercury oxidation removal was also verified by DFT calculation. This work should help in developing suitable materials for thermocatalytic oxidation of elemental mercury, and also provide some theoretical basis and data support for full-scale application of heavy metal mercury pollution control in coalfired power plants.
Keywords
References
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Liu DJ, Lu C, Wu J, Energy Fuels, 32(8), 8287 (2018)
Hutson ND, Attwood BC, Scheckel KG, Environ. Sci. Technol., 41, 1747 (2007)
Wu J, Xu K, Liu QZ, Ji Z, Qu CH, XuemeiQi, Zhang H, Guan Y, He P, Zhu LJ, Appl. Catal. B: Environ., 232, 135 (2018)
Chang H, Wu Q, Zhang T, Li M, Sun X, Li J, Duan L, Hao J, Environ. Sci. Technol., 49, 12388 (2015)
Lietti L, Nova I, Ramis G, Dall'Acqua L, Busca G, Giamello E, Forzatti P, Bregani F, J. Catal., 187(2), 419 (1999)
Galbreath KC, Zygarlicke CJ, Environ. Sci. Technol., 30, 2421 (1996)
Inzani K, Grande T, Vullum-Bruer F, Selbach SM, J. Phys. Chem. C, 120, 8959 (2016)
Shetty M, Buesser B, Roman-Leshkov Y, Green WH, J. Phys. Chem. C, 121, 17848 (2017)
Coquet R, Willock DJ, Phys. Chem. Chem. Phys., 7, 3819 (2005)
Lei YH, Chen ZX, J. Phys. Chem. C, 116, 25757 (2012)
Wang F, Ueda W, Chem. Eur. J., 15, 742 (2009)
Witko M, Tokarz-Sobieraj R, Catal. Today, 91-92, 171 (2004)
Haber J, Lalik E, Catal. Today, 33(1-3), 119 (1997)
