UV–Vis–Infrared Light Driven Thermocatalytic Activity of Octahedral Layered Birnessite Nanoflowers Enhanced by a Novel Photoactivation. (26th April 2016)

• Record Type: Journal Article
• Authors: Liu, Fang; Zeng, Min; Li, Yuanzhi; Yang, Yi; Mao, Mingyang; Zhao, Xiujian
• Is Part Of: Advanced functional materials. Volume 26:Number 25(2016)
• Page Start: 4518
• Page End: 4526
• Publication Date: 2016-04-26
• Subjects: catalysis -- photoactivation -- layered materials -- nanostructures; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.201601046
• Languages: English
• ISSNs: 1616-301X

Abstract

Abstract : Nanoflowers of octahedral layered birnessite (OL‐NF) were synthesized and characterized with a variety of techniques. Remarkably, OL‐NF exhibits a catalytic activity with a high efficiency for CO oxidation under irradiation of the full solar spectrum, visible‐infrared, or infrared light. This highly efficient catalytic activity under solar‐light irradiation originates from solar‐light‐driven thermocatalysis related to the efficient photothermal conversion and thermocatalytic activity of OL‐NF. A conceptually novel photoactivation effect is found to significantly improve the activity of the lattice oxygen of OL‐NF, thus considerably increasing the thermocatalytic activity of OL‐NF. Abstract : A novel photoactivation effect is thoroughly investigated for nanoflowers of octahedral layered birnessite (OL‐NF). Their efficient catalytic activity for CO oxidation under full solar spectrum, visible‐infrared, and infrared light is shown. This originates from solar‐light‐driven thermocatalysis that is related to their efficient photothermal conversion and thermocatalytic activity.