Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 56, Issue 46, Pages 13857-13865Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.7b02793
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Funding
- National Key RD Program [2016YFC0204000]
- National Natural Science Foundation of China [U1510202]
- Jiangsu Province Scientific Supporting Project [BK20170046, BE2015695]
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In this work, a novel Pt/ZnO/SiC filter was successfully prepared by first coating ZnO nanoparticles on a silicon carbide filter by a sol-gel process and then loading Pt nanoparticles on the ZnO layer through impregnation. The microstructure, crystal morphology, composition and elemental valence of the prepared filter were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). It was found that the ZnO coating layer improved the dispersity of the Pt nanoparticles and significantly enhanced the catalytic performance. Toluene was used as a model volatile organic compound and reached complete conversion of up to 100% over the porous tubular Pt/ZnO/SiC material at a filtration velocity of 0.72 m/min within 240 h at 210 degrees C. The synthetic ceramic filter presented a good capacity for the catalytic oxidation of volatile organic compounds (VOCs), and accordingly, a simple approach is suggested here for preparing this catalyst on a support to increase the catalytic efficiency.
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