金属离子和氧化剂对3,5-二氯酚光化学降解的影响

The effects of metal ions and oxidants on the photochemical degradation of 3,5-dichlorophenol

在实验条件下 ,Fe2 +、KCl O3、KCl O4 、KBr O3、KIO4 对 3 ,5 -二氯酚光化学降解起加速作用 ,且随其浓度增大 ,加速作用也在增强。KIO4 的加速作用比较强。光照时 ,KIO4 +Mn2 +对 3 ,5 -二氯酚光化学降解的加速作用非常显著。无光照时 ,当 KMn O4 浓度增加时 ,3 ,5 -二氯酚被迅速氧化 ;KIO4 +Mn2 + /Fe2 + 能够使 3 ,5 -二氯酚发生化学降解 ,尤其是 KIO4 +Mn2 + 的作用。

Under experimental conditions, Fe 2+ /KClO 3/KClO 4/KBrO 3/KIO 4 can accelerate the photochemical degradation of 3,5 dichlorophenol(3,5 DCP), and with the increase of concentration of these substances, this acceleration effect increases The effect of KIO 4 is stronger With illumination, the acceleration effect of KIO 4+Mn 2+ on the photochemical degradation of 3,5 DCP is very striking Without illumination, with the increase of concentration of KMnO 4, 3,5 dichlorophenol is oxygenated rapidly;KIO 4+Mn 2+ /Fe 2+ can oxygenate 3,5 DCP, especially for the effect of KIO 4+Mn 2+