Formation of CeMnxOy/OMS-2 nanocomposite significantly enhances UV-vis-infrared light-driven catalytic activity
Formation of CeMnxOy/OMS-2 nanocomposite significantly enhances UV-vis-infrared light-driven catalytic activity
复制标题
CeMnxOy/OMS-2 纳米复合材料的形成显着增强了紫外可见红外光驱动的催化活性
DOI：
10.1016/j.cattod.2018.07.008
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发表时间：
2019
期刊：
影响因子：
5.3
通讯作者：
Zhao Xiujian
中科院分区：
文献类型：
--
作者：
Liu Huihui;Li Yuanzhi;Yang Yi;Shi Zhengkang;Zhang Qian;Wu Shaowen;Zhao Xiujian
The CeMnxOy/OMS-2 nanocomposites were prepared by depositing different amounts of amorphous CeMnxOyon the pure OMS-2 sample by the hydrothermal redox reaction of Ce(NO3)3and KMnO4. The formation of the CeMnxOy/OMS-2 nanocomposites causes a significant enhancement in the photothermocatalytic activity of OMS-2 for the gas-phase oxidation of benzene under the UV–vis-infrared illumination from a Xe lamp. The optimum CeMnxOy/OMS-2-5.0% nanocomposite exhibits very effective photothermocatalytic activity and very good durability under the UV–vis-infrared illumination. It also exhibits effective photothermocatalytic activity under the visible-infrared and infrared illumination. The significantly enhanced photothermocatalytic activity of the CeMnxOy/OMS-2-5.0% nanocomposite as compared to the pure OMS-2 sample is attributed to the much higher thermocatalytic activity of the former than the latter due to a significant improvement in the reducibility upon the formation of the CeMnxOy/OMS-2-5.0% nanocomposite. A novel photoactivation quite unlike the photocatalysis on the semiconductor photocatalyst such as anatase TiO2is found to obviously promote the solar-light-driven thermocatalytic activity.
