Pb、N和Fe共掺杂光催化剂制备及处理大红染料废水的应用

Pb,N and Fe were doped light catalyst preparation and processing red dye wastewater applications

采用溶胶-凝胶法制备出Pb、N和Fe共掺杂TiO2光催化剂。通过大红染料溶液的光催化降解反应,考察了制备和反应条件对共掺杂TiO2催化剂活性的影响。结果表明:在500℃,当Pb、N和Fe与Ti的原子比为0.7∶1.5∶0.6∶100,焙烧2h,TiO2光催化剂活性最大,大红染料的降解率达到99%。

TiO2 photocatalyst was prepared by Pb,N,and Fe doped sol-gel method.Red dye solution in the photocatalytic degradation reaction was studied the effect of preparation and reaction conditions on the co-doped TiO2 catalyst activity.The results showed that： in 500℃,when the Pb,N,Fe and Ti atomic ratio was 0.7∶1.5∶0.6∶100,roasting 2 hours,TiO2 photocatalytic activity was largest and red dye degradation rate was 99%.