Toxic colorants are threatening the aquatic environment due to their slow degradation. Immobilization zero-valent iron (ZVI) supported on polyester nonwoven (PET-NW) to catalyze fenton reaction in presence of hydrogen peroxide, has been studied. Plasma activated nonwoven was placed in reactor to create complex with ferric irons followed by subsequent formation and immobilization of ZVI. The morphology and structure of the resulting material was systematically characterized using optical microscopy and thermogravimetric analysis. Results indicate successful immobilization of ZVI on nonwoven. It shows superior ability to invoke fenton reaction for degradation of methylene blue in aqueous solution, without precipitation of iron sludge. UV-visible spectrophotometer was used for quantitative measurement of dye degradation. Results suggest significant prospects of the immobilized iron for a broad range of environmental application.