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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 10
BKCSDE 31(10)
October 20, 2010

Title	Catalytic Ozonation of Phenol in Aqueous Solution by Co₃O₄ Nanoparticles
Author	Yuming Dong, Guangli Wang, Pingping Jiang, Aimin Zhang, Lin Yue, Xiaoming Zhang
Keywords	Cobalt oxide, Catalytic degradation, Nano-catalyst, Catalytic mechanism
Abstract	The degradation efficiencies of phenol in aqueous solution were studied by semi-continuous experiments in the processes of ozone alone, ozone/bulky Co₃O₄ and ozone/Co₃O₄ nanoparticles. Catalyst samples (bulky Co₃O₄ and Co₃O₄ nanoparticles) were characterized by X-ray diffraction and transmission electron microscopy. The Brunauer-Emmett- Teller surface area, pH_pzc and the density of surface hydroxyl groups of the two catalyst samples were also measured. The catalytic activity of Co₃O₄ nanoparticles was investigated for the removal of phenol in aqueous solutions under different reaction temperatures. Tert-butyl alcohol had little effect on the catalytic ozonation processes. Based on these results, the possible catalytic ozonation mechanism of phenol by Co₃O₄ nanoparticles was proposed as a reaction process between ozone molecules and pollutants.
Page	2830 - 2834
Full Text	PDF

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