Wydawnictwa Uczelniane / TUL Press
Stały URI zbioruhttp://hdl.handle.net/11652/17
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Pozycja In-situ green synthesis of zinc oxide nanoparticles (ZnO NPs) onto the cotton fabrics by neem (azardirachta indica) leaf extract(Wydawnictwo Politechniki Łódzkiej, 2022) Javed, Asif; Wiener, Jakub; Saskova, Jana; Militky, JiriThis research work was carried out for the green in-situ synthesis of ZnO nanoparticles onto the 100% cotton fabric. Zinc nitrate hexahydrate [Zn(NO3)2.6H2O] was used as precursor and the Neem (Azardirachta Indica) leaf extract was used as reducing agent. Scanning electron microscopy (SEM) and X ray diffraction (XRD) were done to investigate the surface morphology and characteristics of developed samples. Moreover the ultraviolet protection factor (UPF), UVA blocking %age, UVB blocking %age, and antibacterial properties were examined. The SEM and XRD confirmed the deposition of ZnO NPs onto the fabric having crystalline structure. The evaluated samples showed very excellent results for, UPF rating, UVA blocking %age, UVB blocking %age, and antibacterial properties.Pozycja Modification of cotton fabric using a three-component Ag/TiO2/g-C3N4 composite to improve protection against UV radiation(Wydawnictwo Politechniki Łódzkiej, 2022) Glažar, Dominika; Štular, Danaja; Urbas, Raša; Tomšič, Brigita; Šobak, Matic; Jerman, Ivan; Chouhan, Raghuraj S.; Simončič, BarbaraIn this study, the chemical modification of cotton fabric to develop UV-protective properties is presented. For this purpose, TiO2 and a three-component Ag/TiO2/g-C3N4 composite were synthesised ex-situ and were applied to cotton fabric using a pad–dry–cure method. The presence of the composite on the cotton fibres was detected using the SEM, EDS and FTIR methods and with a digital microscope. The results show that the application of TiO2 increased the UV protection of the cotton fabric compared with the untreated fabric. The combination of TiO2 with Ag and g-C3N4 in the composite further improved the UV protection of the cotton fabric, as the absorption in the UVA range increased significantly. This resulted in a large increase in the UPF value, placing the cotton fabric in the excellent protection category. This proves the cumulative effect of the components in the composite.Pozycja Sustainable surface modification of textile with Ag-doped TiO2/polysiloxane nanocomposite for antibacterial, UV protection, and flame retardant properties(Wydawnictwo Politechniki Łódzkiej, 2022) Rashid, Mohammad Mamunur; Tomšič, Brigita; Simončič, Barbara; Jerman, Ivan; Štular, Danaja; Zorc, MatijaIn this work, a cotton fabric with advanced photocatalytic and flame retardant properties was developed by using Ag-doped TiO2 in combination with 3-(trihydroxysilyl)propyl methyl phosphonate (TPMP) with a sustainable sol-gel/hydrothermal approach. Scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDS) were used to confirm the successful application of Ag-doped TiO2 and TPMP on the cotton fabric. The results of UPF, bacterial reduction against Escherichia coli and vertical flammability test showed that the creation of Ag-TiO2+TPMP nanocomposite on the surface of the fibres gave the cotton fabric superior antibacterial activity, very good UV protection and flame retardant activity.Pozycja Development of antibacterial and ultraviolet protective clothing by the application of medicinal plants extract(Wydawnictwo Politechniki Łódzkiej, 2022) Khanzada, Haleema; Kumpikaite, EgleThe increasing health concern has enhanced the utilization of technical products in every field of life from common household items to fabrics. Protection against UV is one of the main concerns of the modern world due to the potential health risk when skin is exposed to UV. Various chemicals have been utilized to enhance the UV protection of fabrics, but they are not green. The purpose of this research is to examine the properties of UV protective fabrics developed by using extract of different plants. Ethanol extract of dried leaves and seeds of three medicinal plants named Azadiarchta indica, Amaranthus viridis and Ricinus communis were applied on fabric to enhance the antimicrobial and UV blocking properties of the treated fabric as these plants are cheap and abundant in Pakistan. Azadiarchta indica and Amaranthus viridis showed good antibacterial and UV blocking. On the other hand, the extract of Ricinus communis showed excellent UV blocking but antibacterial effect was not good.