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Bacteria Elimination and So2 Filtration Using Spacer Fabric Loaded With Natural Zeolite-Nanosilver Composites Publisher



Shirmohammadibahadoran MM1 ; Montazer M2 ; Kamali Dolatabadi M1 ; Bahador A3
Authors

Source: Clean - Soil# Air# Water Published:2018


Abstract

A spacer polyethylene terephthalate (PET) fabric is produced for SO2 elimination along with antibacterial properties as textile filter. The silver nanoparticles (AgNPs) are first in-situ synthesized on natural zeolite (Z) by wet chemical reduction using silver nitrate and sodium borohydride at room temperature. The prepared composite powder is characterized by energy dispersive X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy. Z/AgNPs powder is uniformly fabricated on the spacer polyester fabric through a new electro-deposition method. It is then cured at 160 °C for 3 min and named PET-Z/AgNPs. SO2 adsorption of PET-Z/AgNPs is confirmed using a gas analyzer. The ability of the treated fabric to eliminate airborne Pseudomonas aeruginosa, a Gram-negative bacterium, and Staphylococcus aureus, a Gram-positive bacterium, is also evaluated using the modified shake flask method (AATCC-100). No bacterial growth is observed on PET-Z/AgNPs after 2 h. Furthermore, the breakthrough time of the treated fabric for SO2 with 5 ppm concentration was 12 min at room temperature. In addition, the treated 3D filter fabric shows suitable air permeability for application in air filtration systems. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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