Abstract: In view of the high content of amorphous silicon in the rice husk ash of agricultural waste, this paper used the rice husk ash as the raw material to prepare the denitrification catalytic materials with the TiO2-SiO2 composites as the carrier and the manganese, cerium as the active component. The influence of SiO2 addition on the microstructure of catalytic materials was investigated, and the denitrification mechanism of catalytic materials with different silicon content was analyzed. The experimental results showed that,compared with the catalytic materials with pure TiO2 as the carrier, the particle size of the catalyst materials with TiO2-SiO2 composites as the carrier is uniform and piling up in a fluffy state. The specific surface area and pore volume of catalytic mate-rials have increased, and the number of weak acid sites has also been greatly improved. When the molar ratio of silicon to titanium is 4∶1, the denitration efficiency can reach more than 90%.
马晓宇, 梁雨, 崔素萍, 王志宏, 王亚丽. 稻壳灰制备TiO2-SiO2复合载体脱硝催化材料[J]. 材料导报, 2018, 32(22): 3984-3988.
MA Xiaoyu, LIANG Yu, CUI Suping, WANG Zhihong, WANG Yali. Preparation of Denitrification Catalytic Materials Using TiO2-SiO2 Composites as Carrier by Rice Husk Ash. Materials Reports, 2018, 32(22): 3984-3988.
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2018, Vol. 32 
