title: Full solar spectrum light driven thermocatalysis with extremely high efficiency on nanostructured Ce ion substituted OMS-2 catalyst for VOCs purification.
abstract: The nanostructured Ce ion substituted cryptomelane-type octahedral molecular sieve (OMS-2) catalyst exhibits strong absorption in the entire solar spectrum region. The Ce ion substituted OMS-2 catalyst can efficiently transform the absorbed solar energy to thermal energy, resulting in a considerable increase of temperature. By combining the efficient photothermal conversion and thermocatalytic activity of the Ce ion substituted OMS-2 catalyst, we carried out full solar spectrum, visible-infrared, and infrared light driven catalysis with extremely high efficiency. Under the irradiation of full solar spectrum, visible-infrared, and infrared light, the Ce ion substituted OMS-2 catalyst exhibits extremely high catalytic activity and excellent durability for the oxidation of volatile organic pollutants such as benzene, toluene, and acetone. Based on the experimental evidence, we propose a novel mechanism of solar light driven thermocatalysis for the Ce ion substituted OMS-2 catalyst. The reason why the Ce ion substituted OMS-2 catalyst exhibits much higher catalytic activity than pure OMS-2 and CeO2/OMS-2 nano composite under the full solar spectrum irradiation is discussed.
authors.affiliation: State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology), 122 Luoshi Road, Wuhan 430070, P. R. China. liyuanzhi66@hotmail.com liyuanzhi@whut.edu.cn.
authors.forename: Jingtao
authors.initials: J
authors.lastname: Hou
authors.forename: Yuanzhi
authors.initials: Y
authors.lastname: Li
authors.forename: Mingyang
authors.initials: M
authors.lastname: Mao
authors.forename: Yuanzheng
authors.initials: Y
authors.lastname: Yue
authors.forename: G Neville
authors.initials: GN
authors.lastname: Greaves
authors.forename: Xiujian
authors.initials: X
authors.lastname: Zhao