论文部分内容阅读
应用高效液相色谱法和固相微萃取-气相色谱质谱联用法研究了可见光(λ>420 nm)和四(1,4-二噻英-5,6-二氯)-四氮杂卟啉铁(FePz(dtnCl2)4)存在下,过氧化氢降解无可见光吸收的有机底物对硝基苯甲酸和水杨酸的行为.研究表明,在酸性和中性水溶液中,FePz(dtnCl2)4能有效地活化过氧化氢来氧化降解对硝基苯甲酸和水杨酸以使其苯环结构发生破裂,降解反应速率随pH值增大而减小.这一结果证明,FePz(dtnCl2)4为可见光激发的活化过氧化氢催化剂,该体系对有机底物的氧化降解具有良好的适应性.
The effects of visible light (λ> 420 nm) and tetrakis (1,4-dithioxin-5,6-dichloro) -azaporphyrin were studied by high performance liquid chromatography and solid phase microextraction-gas chromatography- Hydrogen peroxide degrades p-nitrobenzoic acid and salicylic acid, an organic substrate with no visible light absorption, in the presence of iron (FePz (dtnCl2) 4). The results show that in acidic and neutral aqueous solution, FePz (dtnCl2) 4 Can effectively activate hydrogen peroxide to oxidatively degrade p-nitrobenzoic acid and salicylic acid to rupture the benzene ring structure, and the degradation reaction rate decreases with the increase of pH value.This result proves that FePz (dtnCl2) 4 Visible light activated activated hydrogen peroxide catalyst, the system of organic substrates oxidative degradation has good adaptability.