A Nanostructure with Fe₂O₃/MoS₂ Heterojunctions Coated with a Carbon Layer: Insight on Preparation Method and Enhanced Performance in Photo-Fenton Reaction A.Q.M. Abdullah Istiaq1, Huihui Mao2* Abstract The photo-Fenton reaction is a proven method for pollutant degradation, and its efficiency can be enhanced by designing nanostructures that optimize catalytic activity. In