摘要
在实验条件下,Mn2+/Fe2+/Cu2+/Zn2+/Al3+/Y3+/La3+(特别是Y3+和La3+)、KMnO4/K2S2O8/KClO3/KClO4/KBrO3/KIO3对4氯酚光化学降解起加速作用,且随其浓度增大而增强.KIO4对4氯酚光化学降解起抑制作用,且随其浓度增大而增强.KClO3/KBrO3+Y3+对4CP光化学降解的加速作用更为显著.无光照时,KMnO4、KIO4+Mn2+/Fe2+都能够使4氯酚立刻发生化学降解,尤其以KMnO4、KIO4+Mn2+的作用更为显著.
Under experimental conditions, Mn2+/Fe2+/Cu2+/Zn2+/Al3+/Y3+/La3+(especially for Y3+and La3+),KMnO4/K2S2O8/KClO3/KClO4/KBrO3/KIO3 can accelerate the photochemical degradation of 4chlorophenol(4CP), and this acceleration effect increases with the increase of concentration of metal ions and oxidants. KIO4 can inhibit the photochemical degradation of 4CP, and this inhibition effect increases with the increase of the concentration of KIO4. Cooperative effect of KClO3/KBrO3+Y3+ on the photochemical degradation of 4CP is more striking. Without illumination, KMnO4, KIO4+Mn2+/Fe2+ can cause 4CP to be oxygenated at once, the effects of KMnO4 and KIO4+Mn2+ are especially striking.
出处
《应用科学学报》
CAS
CSCD
2003年第4期419-422,共4页
Journal of Applied Sciences
基金
中国人民大学科研资助项目(1999001)
