研究了在紫外光(λ=365nm)照射下,以自制的掺铁锐钛矿型二氧化钛对甲基红的催化降解效果,分析了甲基红初始浓度、二氧化钛的用量、掺铁量、光照时间和溶液初始pH值等因素的影响。结果表明:在15m g/L的甲基红溶液(pH=5)中,加入0.7 g/L自制二氧化钛(掺铁量1%、摩尔分数),室温下紫外光照反应30min,甲基红的降解率达到99.21%。 The photocatalytic degradation of methyl red with self-made iron-doped anatase titanium dioxide under UV irradiation (λ = 365nm) was studied. The results showed that the initial methyl red concentration, the dosage of titanium dioxide, the amount of iron doped, the irradiation time And the initial solution pH and other factors. The results showed that the degradation of methyl red in the methyl red solution (pH = 5) of 15m g / L, the addition of 0.7g / L homemade titanium dioxide (1% iron content, molar fraction), UV irradiation at room temperature for 30min Rate reached 99.21%.