Photodegradation mechanism and rate improvement of chlorinated aromatic dye in non-ionic surfactant solutions

摘要

A typical insoluble chlorinated aromatic dye (CAD), disperse red DR), was used to explore the reaction mechanism and kinetics of photodegradation in non-ionic surfactant solutions. The use of an additional hydrogen source and photosensitizer ias also studied to improve the decay rates. The decay rate of dye in surfactants depends on the K_m of surfactants and their ability to offering an effective hydrogen source.