Preparation of CeO2 with Different Morphologies and Its Application to Catalytic Ozonation of Aqueous Lemon Yellow Solutions

Xian Hua Qiu; Xiang Yu Su; Xue Jun Li; Na Li

doi:10.4028/www.scientific.net/AMR.997.3

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Preparation of CeO₂ with Different Morphologies and Its Application to Catalytic Ozonation of Aqueous Lemon Yellow Solutions
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 997Preparation of CeO2 with Different Morphologies...

Preparation of CeO₂ with Different Morphologies and Its Application to Catalytic Ozonation of Aqueous Lemon Yellow Solutions

Abstract:

Taking Ce (NO₃)₃•6H₂O as cerium source, CeO₂ nanosheets, CeO₂ nanorods and CeO₂ nanotubes were prepared using hydrothemal process. Characterization of chemical structure and surface properties for these materials was carried out and their efficacy in the catalytic ozonation degradation of wastewater was investigated. The results showed that the surface morphology and reaction conditions played great role in the removal of organic compounds. It was found that the CeO₂ nanotubes showed superior catalytic activity. When 0.5 g of CeO₂ nanotubes and 15 mg/min of ozone were applied in catalytic ozonation, the mineralization rate reached 97% after 2 h treatment for 1 L of model wastewater containing lemon yellow with 100 mg/L TOC.

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Advanced Materials Research (Volume 997)

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3-8

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https://doi.org/10.4028/www.scientific.net/AMR.997.3

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Online since:

August 2014

Authors:

Xian Hua Qiu, Xiang Yu Su, Xue Jun Li, Na Li

Keywords:

Catalytic Ozonation, Lemon Yellow, Mineralization of Organics, Nano-CeO₂

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