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以二氧化钛、氧化铝和高岭土为主要原料,加入适量的添加剂,通过柱塞式挤压成型设备制得大型蜂窝陶瓷。实验结果表明,2号样品即TiO2和Al2O3的质量分数比为0.27时综合性能最佳,浸渍催化剂后催化活性最高到98.08%。另外,实验还确定了多种干燥方式结合的干燥制度以及最佳烧成制度,样品经850℃煅烧后,BJH脱附平均孔径为51.3nm,BET比表面积为53m2/g,BJH脱附累积孔容为0.14cm3/g,该吸脱附等温线属于Ⅳ型等温线,是介孔物质的吸附类型。
Titanium dioxide, alumina and kaolin as the main raw material, adding the right amount of additives, through the plunger extrusion molding equipment made of large honeycomb ceramics. The experimental results show that the best comprehensive performance of No.2 sample is that the mass fraction of TiO2 and Al2O3 is 0.27, and the catalytic activity is up to 98.08% after the impregnation of catalyst. In addition, the experiment also determined the drying system combined with a variety of drying methods and the best firing system, the sample calcined at 850 ℃, BJH desorption average pore size of 51.3nm, BET specific surface area of 53m2 / g, BJH desorption cumulants The capacity is 0.14cm3 / g, the adsorption and desorption isotherm belongs to the type Ⅳ isotherm, which is the adsorption type of mesoporous material.