摘要
以工业化生产的偏钛酸为原料,制备出颗粒均匀的球形二氧化钛颗粒。通过扫描电子显微镜、X射线衍射、BET比表面积、激光粒度分布等测试方法,分析表征了颗粒的结构形态及表面理化性质。以所制备的二氧化钛为载体,以偏钒酸铵为V2O5(活性物质)的前驱体,制备脱硝催化剂,考察催化剂的脱硝活性,结果表明,当燃烧温度为370℃时,所制备的催化剂的脱硝效率为75%。
Spherical uniform particles of TiO2 were prepared using the titanate of industrial production as raw material.Structural morphology,surface physical and chemical properties of TiO2 were studied by SEM,XRD,BET and EDS.Using the prepared TiO2 as the carrier,V2O5 as the active component,catalyst of selective catalytic reduction（SCR）for deNOx was prepared and denitrification activity of the catalyst was studied.The results showed that the denitrification rate of this catalyst was above 75% when the temperature was at 370 ℃.
基金
广东省省级科技计划项目(2013B091500049
2013B010403022)
关键词
选择性催化还原
二氧化钛
脱硝催化剂
selective catalytic reduction（SCR）
anatase-TiO2
deNOx catalyst
