Abstract: The micron-flowerlike mesoporous spheres CeO2 support and CuO/CeO2 catalytic materials with a series of CuO loading were prepared by hydrothermal method and deposition-precipitation method, respectively. To evaluate the defense ability of the CuO/CeO2 catalyst materials, the protection time and elimination rate towards HCN were investigated and compared with standard KZ09-1 active carbon material which was usually employed in the gas mask. The results showed that the defense ability of different catalytic materials followed this order: 10% CuO/CeO2>15% CuO/CeO2>5% CuO/CeO2>KZ091>3% CuO/CeO2>1% CuO/CeO2 at the condition of 25 ℃, 120 000 h-1 and 5% H2O. The effect of reaction temperature conditions on the elimination rate of HCN was investigated which indicated the HCN could be removed 98% within 2 h at 100 ℃. The reaction mechanism was speculated by detecting the reaction products selectivity at different reaction temperature. It was shown that HCN was mainly eliminated by chemisorption and catalytic hydrolysis at lower temperature region of 25—50 ℃; chemisorption, catalytic hydrolysis, catalytic oxidation at temperature region of 50—110 ℃ when catalytic hydrolysis and catalytic oxidation played a major role; chemisorption, catalytic hydrolysis, catalytic oxidation and NH3-SCR reactions simultaneously at higher temperature region of 100—200 ℃
1 Wang H B, Liu X L. Chinese Journal of Medicine,2009,44(2),73(in Chinese). 王汉斌,刘晓玲.中国医刊,2009,44(2),73. 2 Lin J Y, Yan Y P. Journal of Chongqing Technology and Business University,2020,37(5),88(in Chinese). 林静怡,杨宜平.重庆工商大学学报(自然科学版),2020,37(5),88. 3 Tao X J, Cui J H, Gao L J. Journal of Taishan University,1999(3),29(in Chinese). 陶秀俊,崔建华,高丽君.泰山学院学报,1999(3),29. 4 Wang C L, Tan H Z, Wang X B, et al. Journal of Engineering Thermophysics,2009(11),1977(in Chinese). 王聪玲,谭厚章,王学斌,等.工程热物理学报,2009(11),1977. 5 Zhang F M, Li K X, Lv C X,et al. New Carbon Materials,2003,18(2),151(in Chinese). 张奉民,李开喜,吕春祥,等.新型炭材料,2003,18(2),151. 6 Radtke F, Koeppel R, Baiker A. Applied Catalysis A General,1994,107(2),L125. 7 Jiang M, Ning P, Bai Y W, et al. In: 2011 International Conference on Electric Technology and Civil Engineering. Lushan,2011,pp.3850. 8 Baum M M, Moss J A, Pastel S H, et al. Environmental Science and Technology,2007,41(3),857. 9 Marsh J D F, Newling W B S, Rich J. Journal of Applied Chemistry,2007,2(12),681. 10 Kröcher O, Elsener M. Applied Catalysis B Environmental,2009,92(1),75. 11 Wang Q, Wang X Q, Wang L L, et al. Microporous and Mesoporous Materials,2019,282,260. 12 Miyadera T. Applied Catalysis B Environment,1998,16(2),155. 13 Chen F, Chen Z G, Li X Z, et al. Journal of the Chinese Ceramic Society,2011,39(3),397. 14 Huang P X, Wu F, Zhu B L, et al. Journal of Physical Chemistry B,2005,109(41),19169. 15 Sun C W, Sun J, Xiao G L, et al. The Journal of Physical Chemistry B,2006,110(27),13445. 16 Tan L, Tao Q, Gao H Y, et al. Journal of Porous Materials,2017,24(3),795. 17 She Y S, Zheng Q, Li L, et al. International Journal of Hydrogen Energy,2009,34(21),8929. 18 Yao X J, Chen L, Kong T T, et al. Chinese Journal of Catalysis,2017,38(8),1423. 19 Suzana M, Francisco P, Mastelaro V R, et al. Journal of Physical Che-mistry B,2001,105(43),10515. 20 Wen D, Lia J, Wu X D, et al. Catalysis Communications,2008,9(9),1898. 21 Wang L L, Wang X Q, Cheng J H, et al. Applied Surface Science,2018,439,213. 22 Solsona B, Tomás G, Hutchings G J, et al. Applied Catalysis A General,2009,365(2),222. 23 Jiang X Y, Lou L P, Chen Y X, et al. Journal of Molecular Catalysis A Chemical,2003,197(1),193. 24 Yan L X, Tian S L, Ning P. China Environmental Science,2015(10),2964(in Chinese). 闫林霞,田森林,宁平.中国环境科学,2015(10),2964. 25 Liang F X, Zhu H Q, Qin Z F, et al. Catalysis Letters,2008,126(3-4),353. 26 Deng C S, Li B, Dong L H, et al. Physical Chemistry Chemical Physics,2015,17(24),16092. 27 Sun C W, Li H, Chen L Q. Journal of Physics and Chemistry of Solids,2007,68(9),1785. 28 Cheng J H, Wang X Q, Ning P. In: IOP Conference Series Materials Science and Engineering. Singapore,2017,pp.231. 29 Hu Y N, Liu J, Cheng J, et al. Applied Surface Science,2018,427,843. 30 Nickolov R N, Mehandjiev D R. Journal of Colloid and Interface Science,2004,273(1),87. 31 Wang X Q, Cheng J H, Wang X Y, et al. Chemical Engineering Journal,2018,333,402.
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2021, Vol. 35 
