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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
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Authors Affiliations
  1. 1. Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, 1477893855, Iran
  2. 2. Department of Textile Engineering, Center of Excellence in Textile, Amirkabir University of Technology (Tehran Polytechnic), Tehran, 158754413, Iran
  3. 3. Faculty of Medicine, Department of Microbiology, Tehran University of Medical Sciences, Tehran, 1419963111, Iran

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