CuO/Al2O3 Catalyst Preparation Conditions for Removal of Nitrobenzene by Heterogeneous Fenton-Like System
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School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang, China
Urban Planning and Design Institute of Shenzhen, Shenzhen, China
Urban Water Benign Engineering Research and Development Center, Shenzhen Polytechnic, Shenzhen, China
China Energy Engineering Corporation Limited Liaoning Institute, 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
Corresponding author
Nana Wu   

Shenyang Jianzhu University, School of Municipal and Environmental Engineering,, 110168, Shenyang, China
Pol. J. Environ. Stud. 2020;29(2):1909–1917
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.