Ce-based catalysts used in advanced oxidation processes for organic wastewater treatment: A review |
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Authors: | Lijun Niu Ting Wei Qiangang Li Guangming Zhang Guang Xian Zeqing Long Zhijun Ren |
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Affiliation: | School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300130, China;School of Environment and Natural Resource, Renmin University of China, Beijing 200872, China;School of Environment and Natural Resource, Renmin University of China, Beijing 200872, China;School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300130, China |
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Abstract: | Refractory organic pollutants in water threaten human health and environmental safety, and advanced oxidation processes (AOPs) are effective for the degradation of these pollutants. Catalysts play vital role in AOPs, and Ce-based catalysts have exhibited excellent performance. Recently, the development and application of Ce-based catalysts in various AOPs have been reported. Our study conducts the first review in this rapid growing field. This paper clarifies the variety and properties of Ce-based catalysts. Their applications in different AOP systems (catalytic ozonation, photodegradation, Fenton-like reactions, sulfate radical-based AOPs, and catalytic sonochemistry) are discussed. Different Ce-based catalysts suit different reaction systems and produce different active radicals. Finally, future research directions of Ce-based catalysts in AOP systems are suggested. |
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Keywords: | Corresponding author. Ce-based catalysts Water treatment Redox properties Oxygen vacancies Advanced oxidation processes |
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