Heterogeneous catalytic treatment of synthetic dyes in aqueous media using Fenton and photo-assisted Fenton process

► Efficiency of Photo-Fenton over heterogeneous system has been elucidated. ► Homogeneous and heterogeneous behavior for the synthetic dye abatement has been explained. ► Importance of degradation of synthetic dyes using various catalyst supports have been summarized. ► Effects of preparatory methods in the application of Photo-Fenton system have been described. ► Future prospects and application for higher degradation efficiency of dyes were mentioned.