Preparation and Characterization of Buoyant Nitrogen-doped TiO2 Composites Supported by Fly Ash Cenospheres for Photocatalytic Applications
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2013年第9期
论文作者：Chuang Li Bing Wang Hao Cui Jianping Zhai Qin Li
文章页码：835 - 840
摘 要：Fly ash cenospheres（FACs） coated with nitrogen-doped TiO2（N-TiO2） composites were prepared by the sole gel method for use as photocatalysts.The photocatalytic activity and kinetics of the composites produced at different calcination temperatures and with different nitrogen doping contents were studied under visible light irradiation by monitoring the environmental degradation of methylene blue（MB）.The MB degradation ratio of N-TiO2/FAC（25%,450℃） was 10% higher than that of N-TiO2 and 40% higher than that of TiO2/FAC.These N-TiO2/FAC composites floated in water and could be recovered after the photocatalytic reaction by phase separation.
Chuang Li，Bing Wang，Hao Cui，Jianping Zhai，Qin Li
State Key Laboratory of Pollution Control and Resource Reuse,and School of the Environment,Nanjing University
摘 要：Fly ash cenospheres（FACs） coated with nitrogen-doped TiO2（N-TiO2） composites were prepared by the sole gel method for use as photocatalysts.The photocatalytic activity and kinetics of the composites produced at different calcination temperatures and with different nitrogen doping contents were studied under visible light irradiation by monitoring the environmental degradation of methylene blue（MB）.The MB degradation ratio of N-TiO2/FAC（25%,450℃） was 10% higher than that of N-TiO2 and 40% higher than that of TiO2/FAC.These N-TiO2/FAC composites floated in water and could be recovered after the photocatalytic reaction by phase separation.
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