ORIGINAL RESEARCH
CuO/Al2O3 Catalyst Preparation Conditions for Removal of Nitrobenzene by Heterogeneous Fenton-Like System
Nana Wu 1  
,   Qiang Liu 1,   Yiming Ding 2,   Wanting Fang 1,   Yang He 1,   Jinwei Li 3,   Chengchun Jiang 3,   Yusi Wang 4
 
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1
School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang, China
2
Urban Planning and Design Institute of Shenzhen, Shenzhen, China
3
Urban Water Benign Engineering Research and Development Center, Shenzhen Polytechnic, Shenzhen, China
4
China Energy Engineering Corporation Limited Liaoning Institute, Shenyang, China
CORRESPONDING AUTHOR
Nana Wu   

Shenyang Jianzhu University, School of Municipal and Environmental Engineering,, 110168, Shenyang, China
Submission date: 2019-02-02
Final revision date: 2019-05-01
Acceptance date: 2019-05-09
Online publication date: 2019-12-05
Publication date: 2020-02-13
 
Pol. J. Environ. Stud. 2020;29(2):1909–1917
 
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ABSTRACT
In order to effectively remove nitrobenzene-containing wastewater, nitrobenzene was degraded by heterogeneous Fenton system in this study. CuO/Al2O3 catalysts were prepared by different methods and conditions. The characteristics of CuO/Al2O3 were analyzed by BET, X-ray diffraction (XRD) and scanning electron microscope (SEM). Among them, the specific surface area, pore volume and pore size of CuO/Al2O3 were characterized by BET; the phase and crystallinity of the CuO/Al2O3 were determined by XRD; the surface morphology of the CuO/Al2O3 was observed by SEM. Nitrobenzene concentration was determined by HPLC. The nitrobenzene-containing wastewater was degraded by a heterogeneous Fenton-Like system catalyzed with prepared CuO/Al2O3. The results showed that the optimal preparation method of the catalyst was the deposition precipitation method. The optimal conditions of the catalyst were as follows: the loading content of CuO was 5%, the calcination temperature of CuO was 400ºC, the calcination time of CuO was 3 h, and the calcination temperature of Al2O3 carrier was 400ºC. The removal rate of nitrobenzene reached 84.37% under this condition. This study shows that the nitrobenzene could be effectively degraded in a heterogeneous Fenton-like system catalyzed by CuO/Al2O3.
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ISSN:1230-1485