采用溶胶凝胶法以硅酸铝纤维布(fiber)为载体通过不同溶胶配比制备纳米TiO2-硅酸铝纤维(TiO2-fiber)复合物.使用X射线衍射仪(XRD)及场发射扫描电镜(FSEM)等手段对其进行表征;在波长为253.7nm的紫外光(UV)照射下使用复合物进行多种工况下的光催化脱汞试验,验证催化脱汞性能.结果表明,复合物表面TiO2纳米微粒尺寸可控制在10～20nm左右;紫外光照射下脱汞率最高可达95%,催化脱汞性能优异;溶胶醇酸比为2/1时,复合物催化活性最强;气氛组分、光照强度及温度等因素对催化反应有明显影响.
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