Preparation of LaFeO3 perovskite catalyst for the degradation of phenol

化学工业与工程

Chemcial Industry and Engineering

2024, Vol. 41

Issue (3) :161-169 DOI: 10.13353/j.issn.1004.9533.20220808

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Preparation of LaFeO₃ perovskite catalyst for the degradation of phenol

LIU Xinyao¹, ZHANG Xuanjiao¹, WANG Jiantao¹, ZHANG Caishun¹, HAN Jiao¹, ZHANG Lei^1,2, GAO Zhixian¹

1. School of Petrochemical Engineering, Liaoning Petrochemical University, Liaoning, Fushun 113001, China;
2. Graduate School, Liaoning Petrochemical University, Liaoning, Fushun 113001, China

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Abstract LaFeO₃ perovskite catalyst precursors were prepared by ball milling, sol-gel and co-precipitation. A series of LaFeO₃ perovskite catalysts were obtained by changing the calcination temperature. The structure and properties of the catalyst were characterized by XRD, FT-IR, N₂ physical adsorption/desorption, H₂-TPR and XPS, and the catalytic performance of the catalyst for wet air oxidation of phenol was investigated. Preparation method of precursors has great influence on the catalytic performance. At the same time, the low temperature reduction ability and more oxygen vacancies of the catalyst have higher catalytic activity. The catalyst prepared by sol-gel method and calcinated at 800 ℃ has good catalytic activity. Under the conditions of reaction temperature at 200 ℃, air pressure at 5 MPa and initial phenol concentration at 4 000 mg·L^-1, the final COD removal rate (240 min) is 95.4%.

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	LIU Xinyao
	ZHANG Xuanjiao
	WANG Jiantao
	ZHANG Caishun
	HAN Jiao
	ZHANG Lei
	GAO Zhixian

Keywords： perovskite phenol catalytic wet air oxidation COD removal rate

Received 2022-08-25;

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LIU Xinyao, ZHANG Xuanjiao, WANG Jiantao, ZHANG Caishun, HAN Jiao, ZHANG Lei, GAO Zhixian.Preparation of LaFeO₃ perovskite catalyst for the degradation of phenol[J] Chemcial Industry and Engineering, 2024,V41(3): 161-169

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