紫外光照下锐钛型Fe-TiO2粉末对甲基蓝的催化降解

Catalytic Degeneration of Methyl Blue with Anatase Fe-TiO2 Powders under UV Light (λ=254 nm) 

中文关键词:  锐钛型Fe-TiO₂  甲基蓝  紫外光  催化降解

英文关键词:Anatase Fe-TiO₂  Methyl blue  UV light  Catalytic degradation

中文摘要:

      采用水热法自制的锐钛型Fe-TiO₂粉末在紫外光(λ=254 nm)照射下,对有机污染物甲基蓝进行光催化降解,研究了甲基蓝溶液的初始浓度、溶液的pH、TiO₂掺杂量、TiO₂用量、反应时间等因素对甲基蓝降解率的影响。结果表明:在甲基蓝溶液初始浓度为 50 mg/L(pH=6)、TiO₂掺铁量3%(摩尔分数)、TiO₂粉末用量为1.00 g/L、室温18℃下经紫外光照射反应105 min,甲基蓝的降解率达到97.3%。

英文摘要:

      :Anatase Fe-doping TiO₂powders prepared via hydrothermal method was used for photo-catalytic degradation of methyl blue. The influences of initial methyl blue concentration, solution pH, amount of Fe-doping, dosage of TiO₂ and irradiation time were investigated. The results indicate that under the conditions of initial methyl blue concentration of 50 mg/L (pH=6), amount of Fe-doping 3%(mole fraction),TiO₂ powders dosage of 1.00 g/L, room temperature of 18℃, the degradation rate of methyl blue can achieve 97.3% when the irradiation time under UV(λ=254 nm) is 105 min.