CuCe/ZSM-5复合材料的制备及降解有机废水研究

doi:10.11896/cldb.21070083

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Abstract CuCe/ZSM-5 catalysts were prepared by microwave-assisted synthesis, and the changes of chemical oxygen demand (COD) removal rate of CuCe/ZSM-5 catalysts in phenol-containing wastewater and industrial wastewater were studied by changing the reaction temperature, initial pH and catalyst addition amount. The catalyst was characterized by XRD, XPS, SEM, TEM and other methods, and the results show that the formation of CuCe solid solution can accelerate the charge conversion between Cu⁺/Cu²⁺ and Ce⁴⁺/Ce³⁺ ion pairs, and promote the activation of H₂O₂ molecules to form strong oxidizing species. CuCe/ZSM-5 shows high activity and stability, and it can achieve a COD removal rate of 90% within 180 min at 75 ℃ and remain stable after five consecutive uses. The catalytic wet hydrogen peroxide oxidation (CWPO) reaction of phenol-containing wastewater and industrial wastewater conforms to the dynamic simulation curve of the first-order kinetic equation, and the complex pollutant composition in industrial wastewater is more difficult to degrade than that of phenol-containing wastewater. GC-MS was used to comprehensively analyze the intermediate products generated during the degradation process, and it was found that phenol was dehydrogenated, ring-opening and oxidized to generate intermediates such as acetic acid, and finally mineralized to generate small molecules such as CO₂ and H₂O.

Key words： catalytic wet peroxide oxidation continuous flow organic wastewater kinetic research mechanism analysis

Published: Online: 2023-01-03

CLC number:

O643.36

Fund:National Water Pollution Control and Management Technology Major Project of China(2012ZX07202-002), the Key Tackling Problems of the Education Department of Liaoning Province,China(L2020003), and the Department of Education Project Liaoning Province,China(L2020020).

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	Articles by authors
	XU Hongzhu
	LI Changbo
	ZHAO Guozheng
	WANG Shuo
	LIANG Hui
	FU Yuting
	SUN Zikai
	YANG Jiatong
	LI Dongyu
	ZHANG Daihang

Cite this article:

XU Hongzhu,LI Changbo,ZHAO Guozheng, et al. Study on Preparation of CuCe/ZSM-5 Composite Material and Degradation of Organic Wastewater[J]. Materials Reports, 2022, 36(24): 21070083-7.

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http://www.mater-rep.com/EN/10.11896/cldb.21070083 OR http://www.mater-rep.com/EN/Y2022/V36/I24/21070083

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