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| Modification mechanism and CO denitration activity of V/AC catalyst |
| LI Jianli1，HUANG Bangfu2，WANG Zhuo2，WEN Zhenjing2，LI Wanjun2 |
| （1. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University
of Science and Technology, Wuhan 430081, China； 2. Faculty of Metallurgical and Energy Engineering, Kun‐
ming University of Science and Technology, Kunming 650093, China） |
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Abstract In order to investigate the modification mechanism of activated carbon with different vanadium loads
and the CO denitration activity of the prepared catalyst, coconut shell activated carbon was selected as catalyst
carrier in this paper. A series of V/AC catalysts were prepared by using nitric acid activated, impregnation with
VOSO
4 solution, and calcination. V/AC catalysts were characterized by SEM, EDS, BET, XRD and FTIR. V/AC
modification mechanism was researched. The results show that the surface active components of the catalyst con‐
tain Vanadium and Vanadium oxide. The pore volume of activated carbon is efficiently utilized with 10%V loading
catalyst. A new structure is formed and the specific surface area and pore volume are increased with the 10%V load‐
ing catalyst. The active components of V2O5 and V2O3 is observed on the surface of V/AC catalysts. The carboxyl
group and O-H functional group decrease gradually with the increase of V loading capacity, too much vanadium
can break the C-OH, C-O and C=O bonds. The denitration activity of 10%V loading catalyst with better physical
and chemical parameters is higher than others. The CO denitration activity of 15% V loading catalyst is higher than
5%V loading catalyst's. The research results can provide reference for the preparation of low temperature catalysts
and the application of CO denitration technology.
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Received: 21 July 2021
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Corresponding Authors:
黄帮福（1983—），男，博士，副教授，主要研究方向为钢铁烟气多污染物治理。
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2022, Vol. 32 
