TiO２／SiO２漂浮固定床多孔材料光催化氧化活性研究

摘要

Nanometer TiO２／SiO２，supported on porous fixed-bed of polymethacrylate modified by starch，was used in photocatalytic oxidation of aromatic oil and phenol．Activity test showed that optimum result could be obtained at catalyst loading of 20％ with photocatalytic degradation of 94％．Activity of 95％ can be attained in repeated use．%以淀粉改性的聚甲基丙烯酸酯为多孔固定床，负载纳米TiO２／SiO２，对芳烃油、苯酚的光催化氧化活性进行测试，表明催化剂负载20%时最佳，光催化降解率达94%，重复使用有效活性达95%。