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        Plasma-Assisted Green Synthesis of ZnO Directly on Polyethylene Terephthalate Fabric

        Anja Verbič,Katja Brenčič,Gregor Primc,Miran Mozetič,Martin Šala,Marija Gorjanc 한국섬유공학회 2023 Fibers and polymers Vol.24 No.1

        This article presents green in situ synthesis of ZnO directly on polyethylene terephthalate (PET) fabrics using pomegranatepeel extract. The surface of PET was activated by environmentally friendly oxygen plasma, and the process was comparedto alkali treatment where the extract of wood ash was used instead of classical chemicals. Sorption analysis showed that thehydrophilic character of the plasma-treated sample was much better than that of the alkali-treated and untreated samples. Both treatments slightly decreased the breaking strength and elongation of the fabric. Scanning electron microscopy, colourmeasurements, dispersive X-ray spectroscopy, and antioxidant activity investigations showed that the ZnO particles were successfullysynthesised on alkali- and plasma-treated PET. The liquid chromatography-mass spectrometry results showed thatellagic acid and punicalagin were the most abundant compounds in the pomegranate peel extract that enabled the synthesisof ZnO. The UV protection, amount of ZnO, and uniformity were the highest for the ZnO prepared on the PET samples bythe plasma-assisted green synthesis. Additional optical assessment of fabric porosity and thickness measurements confirmedthat these fabrics have excellent UV protection due to the presence of ZnO.

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