Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received January 25, 2017
Accepted April 12, 2017

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 unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

Catalytic combustion of volatile aromatic compounds over CuO-CeO2 catalyst

Hongmei Xie¹ Qinxiang Du¹ Hui Li¹ Guilin Zhou^{1 2†} Shengming Chen¹ Zhaojie Jiao^2† Jianmin Ren¹

¹Chongqing Key Laboratory of Catalysis & Environmental New Materials, Department of Materials Science and Engineering, Chongqing Technology and Business University, Chongqing 400067, China ²Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing 400067, China

dicpglzhou@ctbu.edu.cn

Korean Journal of Chemical Engineering, July 2017, 34(7), 1944-1951(8), 10.1007/s11814-017-0111-4

Download PDF

Abstract

Ce1-xCuxO2 oxide solid solution catalysts with different Ce/Cu mole ratios were synthesized by the one-pot complex method. The prepared Ce1-xCuxO2 catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and H2 temperature-programmed reduction (H2-TPR). Their catalytic properties were also investigated by catalytic combustion of phenyl volatile organic compounds (PVOCs: benzene, toluene, xylene, and ethylbenzene) in air. XRD analysis confirmed that the CuO species can fully dissolve into the CeO2 lattice to form CeCu oxide solid solutions. XPS and H2-TPR results indicated that the prepared Ce1-xCuxO2 catalysts contain abundant reactive oxygen species and superior reducibility. Furthermore, the physicochemical properties of the prepared Ce1-xCuxO2 catalysts are affected by the Ce/Cu mole ratio. The CeCu3 catalyst with Ce/Cu mole ratio of 3.0 contains abundant reactive oxygen species and exhibits superior catalytic combustion activity of PVOCs. Moreover, the ignitability of PVOCs is also affected by the respective physicochemical properties. The catalytic combustion conversions of ethylbenzene, xylene, toluene, and benzene are 99%, 98.9%, 94.3%, and 62.8% at 205, 220, 225, and 225 °C, respectively.

Keywords

Ce1-xCuxO2 Oxide Solid Solution Catalyst Phenyl VOCs Catalytic Combustion Reactive Oxygen Species

References

Tarjomannejad A, Farzi A, Niaei A, Salari D, Korean J. Chem. Eng., 33(9), 2628 (2016)
Zhou GL, Lan H, Yang XQ, Du QX, Xie HM, Fu M, Ceram. Int., 39, 3677 (2013)
Zhou G, He X, Liu S, Xie H, Fu M, J. Ind. Eng. Chem., 21, 932 (2015)
Shan WJ, Feng ZC, Li ZL, Jing Z, Shen WJ, Can L, J. Catal., 228(1), 206 (2004)
Rodriguez JA, Hanson JC, Kim JY, Liu G, Iglesias-Juez A, Fernandez-Garcia M, J. Phys. Chem. B, 107(15), 3535 (2003)
Hu CQ, Chem. Eng. J., 159(1-3), 129 (2010)
Zhou GL, Lan H, Xie HM, RSC Adv., 4, 50840 (2014)
Luo MF, Ma JM, Lu JQ, Song YP, Wang YJ, J. Catal., 246(1), 52 (2007)
Menon U, Poelman H, Bliznuk V, Galvita VV, Poelman D, Marin GB, J. Catal., 295, 91 (2012)
Zhang YW, Si R, Liao CS, Yan CH, J. Phys. Chem. B, 107(37), 10159 (2003)
Tang XL, Zhang BC, Li Y, Xu YD, Xin Q, Shen WJ, Appl. Catal. A: Gen., 288(1-2), 116 (2005)
Aranda A, Agouram S, Lopez JM, Mastral AM, Sellick DR, Solsona B, Taylor SH, Garcia T, Appl. Catal. B: Environ., 127, 77 (2012)
Boaro M, Vicario M, de Leitenburg C, Dolcetti G, Trovarelli A, Catal. Today, 77(4), 407 (2003)
Zhou GL, Lan H, Wang H, Xie HM, Zhang GZ, Zheng XX, J. Mol. Catal. A-Chem., 393, 279 (2014)
Thorat AV, Ghoshal T, Carolan P, Holmes JD, Morris MA, J. Phys. Chem. C, 118, 10700 (2014)
Zhou GL, Lan H, Gao TT, Xie HM, Chem. Eng. J., 246, 53 (2014)
Yao YB, Xie T, Gao YM, Handbook of physical chemistry, Shanghai Science and Technology Press, 227 (1985).
Raj KJA, Malar EJP, Vijayaraghavan VR, J. Mol. Catal. A-Chem., 243(1), 99 (2006)