Fe^(3+)掺杂改性TiO_2光催化降解吡嘧磺隆废水研究

Preparation and Properties of Fe^(3+) Doped TiO_2 Solid Photocatalysts

采用溶胶-凝胶法制备了Fe^(3+)掺杂TiO_2固体光催化剂,考察了不同反应条件对催化剂处理吡嘧磺隆废水催化效率的影响。结果表明,Fe^(3+)掺杂量为2.5%、催化剂用量为0.2g·L^(-1)、外加双氧水为700mg·L^(-1)时,催化效率最高。TiO_2固体光催化剂使用3~6次后,催化效率变化不大。本研究结果可为光催化处理难降解农药废水提供依据。

Fe3+doped TiO2 solid catalyst was prepared by sol-gel method.The effect of different processing conditions on the pyrazosulfuron wastewater catalytic efficiency was investigated.The results showed when the doping amount of Fe3+was 2.5%,the amount of catalyst was 0.2g/L,double oxygen water amount was 700mg/L,the catalytic efficiency was the highest.The TiO2 catalytic efficiency had little change after used for 3~6 times.