PDF《中国科技论文在线》

451 8236 8074. E-mail address: [email protected] (J. Ma). C A R B O N

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9 7 available at www.sciencedirect.com journal homepage: www.elsevier.com/locate/carbon http://www.paper.edu.cn 中国科技论文在线 present research, oxalic acid was employed as a model com- pound to evaluate the activity of different catalysts in ozona- tion. Pt/CNT catalyst was prepared and both of the stability and the degradation ability for oxalic acid were investigated in comparison with Pt/AC catalyst. The preparation condi- tions which might have important effect on the performance of Pt/CNT catalyst, such as the amount of Pt loading, the reduction temperature and the pyrolysis atmosphere, were investigated in detail. The mechanism of oxalic acid ozona- tion in the presence of Pt/CNT was also discussed. 2. Experimental 2.1. Support Commercial aligned-CNT (i.d.: 10C20 nm, length: 5C15 lm, purity: >95%) was obtained from Shenzhen Nanotech. Port. Co. Ltd. (Shenzhen, China). The powdered AC (i.d.