초록 |
Red mud-based catalysts were applied to the catalytic oxidation of volatile organic compounds (VOCs; toluene, benzene, o-xylene and hexane). The effects of calcination temperatures in the range of 400-600 oC and pH on red mud-based catalysts were investigated. Calcination temperature and pH of red mud have an effect on catalytic activity. The properties of the prepared catalysts were characterized by using Brunauer-Emmett-Teller (BET), inductively coupled plasma atomic emission spectroscopy (ICP-AES), temperature programmed reduction (TPR), X-ray diffraction (XRD, Fourier transform infrared spectrophotometer (FTIR), scanning electron microscope (SEM) and field transmission electron microscope (FE-TEM) analyses. |