Catalytic oxidation of airborne toluene by using copper oxide supported on a modified natural diatomite
الموضوعات : Iranian Journal of CatalysisSeyed Reza Azimi Pirsaraei 1 , Hasan Asilian Mahabadi 2 , Ahmad Jonidi Jafari 3
1 - Department of Occupational Health Engineering, Faculty of Medical Sciences, Tarbiat Modares University, P.O. Box: 14115-111, Tehran, Iran.
2 - Department of Occupational Health Engineering, Faculty of Medical Sciences, Tarbiat Modares University, P.O. Box: 14115-111, Tehran, Iran.
3 - Research Center for Environmental Health Technology, Iran University of Medical Sciences, P.O Box: 14665-354, Tehran, Iran.
الکلمات المفتاحية: Toluene, CuO, Diatomite, Catalytic oxidation,
ملخص المقالة :
The catalytic oxidation of toluene over copper oxide supported on natural diatomite was investigated. The catalyst was prepared by the wet impregnation method and characterized by using the Brunauer Emmett Teller (BET), field emission Scanning Electron Microscopy (FESEM), X-ray diffraction (XRD), X-ray fluorescence (XRF) and Temperature-programmed reduction (TPR) analysis. The highest catalytic performance for airborne toluene oxidation was obtained at 14 wt% Cu loading. The toluene conversion at 270°C and 380°C, were 50% and 90%, respectively. According to the results of GC/MS and formation the CO2 in effluent gas, no intermediates such as CO or other hydrocarbons were detected and the selectivity towards CO2 was almost 100%.
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