A facile approach for immobilization of zero-valent iron (ZVI, Fe0) on plasma treated polyester nonwovens (PET-NWs) using hyper-branched G5-PEG10k-OH dendrimer (G5-D) was studied. The objective was to investigate the potential use of dendrimer for immobilization of ZVI on fibrous PET textiles. For that, air atmospheric plasma treatment of PET-NWs was carried out followed by grafting of G5-D onto the hydrophilic PET-NWs surface. ZVI was immobilized on the designed PET-NWs@G5-D by means of reductive formation and immobilization. Microscopic image analysis and thermo-gravimetric analysis studies indicate successfully synthesis and formation of PET-NWs@G5-D-ZVI complex. The produced hybrid metrics is able to exhibit catalytic reaction in an aqueous system and degrade organic contaminants which suggest a significant prospect of potential use of dendrimers to immobilize iron onto porous textiles for a broad range of environmental remediation.