《Table 1 Chemical composition of silica fume》

《Table 1 Chemical composition of silica fume》   提示:宽带有限、当前游客访问压缩模式
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《低成本制备MCM-41介孔分子筛及其对镉离子的吸附性能(英文)》


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The silica fume used in this study was obtained from a ferrosilicon plant in China.The particle size distribution of the silica fume was determined by a particle size analyzer(model Beckman Coulter LS320).The particle size ranged from 20 to 45μm with a mean diameter of24μm.The chemical composition of silica fume was determined using an X-ray fluorescence(XRF)spectrometer,and the results are listed in Table 1.The analysis suggested that the majority of the silica fume contained SiO2 with trace amounts of CaO,K2O,Al2O3,MgO,Fe2O3,etc.Cetyltrimethylammonium bromide(CTAB,Aldrich),H2SO4,Na OH(Sinopharm Chemical Reagent Company)and deionized water were used in this study.