The effect of various concentration of surfactant and sodium dodecylbenzene sulfonate(SDBS) on the aqueous photodegradation of sodium pentachlorophenate were studied.The results showed that SDBS did not take part in the photodegradation reaction.When the concentration of SDBS was below the critical micelle concentration(CMC),the photodegradation was restrained,and when it was above the CMC,the photodegradation was accelerated.Based on surfactant property,it could be explained as follows:whenthe concentratio...