期刊
MATERIALS LETTERS
卷 110, 期 -, 页码 16-19出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2013.08.001
关键词
Porous materials; Manganese oxide; o-Xylene; Oxidation
资金
- National Natural Science Foundation of China [21147004]
- Natural Science Foundation of Hebei Province [B2013205100, E2012403011]
- Science Foundation of Hebei Normal University [L2010Z06]
- special fund for teacher education reform of Hebei Normal University
P-doped cryptomelane-type manganese oxide K-OMS-2 materials with three-dimensional structures were easily prepared using KMnO4 and MnPO4 as precursors via hydrothermal route. The scanning electron microscopy (SEM) and Energy dispersive X-ray spectra (EDS) results revealed that the morphology of P-doped K-OMS-2 transformed from hierarchical microspheres assembled from nanosheets and nanoneedles to nest-like structure with the increase of P/Mn molar ratio. Nitrogen sorption analysis showed that the isotherms of P-doped K-OMS-2 materials were typically type-IV with hysteresis loops, which meant that the samples had a mesoporous structure. The surface area and average pore diameter of the as-prepared K-OMS-2 materials were 138-153 m(2) g(-1) and 18-56 nm respectively. In addition, the obtained materials showed good catalytic ability for the catalytic oxidation of a typical volatile organic compound (VOCs), o-xylene. (C) 2013 Elsevier B.V. All rights reserved.
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