中文摘要：

尝试利用KMnO4光氧化C6F6脱氟,获得较好的脱氟效果.研究表明,溶液的pH值、激光脉冲次数、KMnO4的初始浓度、C6F6的初始浓度等因素均会影响F-的生成率.酸性条件更有利于KMnO4光氧化C6F6脱氟.F-生成率随激光脉冲数的增加而单调上升.受到消光系数的影响,KMnO4的浓度达到3.0×10^-4mol/L时,脱氟效率达到最佳.pH值为0.5的2.0×10^-4mol/LC6F6与6.0×10^-4mol/LKMnO4的混合溶液在接受脉冲激光照射9000次后,F-生成率可达1.61mol/molC6F6.C6F6的降解与MnO4-受激后产生的Mn（V）过氧复合物有关.

英文摘要：

General test utilizing KMnO4 photooxidizing C6F6 defluorination obtained good defluorination efficiency. Factors like pH value of solution, laser pulse number, KMnO4 initial concentration, C6F6 initial concentration could influence the production rate of F. Acidity condition was more favorable to KMnO4 photooxidation. C6F6 defluorination rate enhanced monotonuously with the increase of laser pulse number. Due to the influence of absorption extinct coefficient, defluorination efficiency reached the best at KMn04 of 3.0×10-4 mol/L. After the mixed solution of 2.0×10^-4 mol/L C6F6 and 6.0×10-4 mol/L KMnO4 at pH value of 0.5 received 9000 laser pulses, Fproduction rate could reach 1.61 mol/mol C6F6. C6F6 degradation was related with Mn（V） peroxo complex produced after MnO4 receiving laser.