title: Nano-photo active cellulosic fabric through in situ phytosynthesis of star-like Ag/ZnO nanocomposites: Investigation and optimization of attributes associated with photocatalytic activity.
abstract: In this study, nano-photo active cellulosic fabric was prepared through in situ phytosynthesis of star-like Ag/ZnO nanocomposites using the ashes of Seidlitzia rosmarinus plants so-called Keliab. This is provided alkali media as a vital condition for synthesis of nanocomposites, further increasing the reduce-ability of cellulosic chains by activation of hydroxyl groups. The intermolecular dehydrolysis of intermediates ions under thermal and alkaline conditions leads to formation of Ag/ZnO heterostructure. Various analytical techniques were employed to confirm Ag/ZnO nanocomposites on the cotton fabric. The surface morphology, crystal phase and chemical structure of the treated fabrics were characterized by field emission and scanning electron microscopy (FE-SEM and SEM), X-ray diffraction (XRD), and energy dispersive X-ray spectroscopy (EDX). Moreover, influence of precursors: silver nitrate, zinc acetate and Keliab solution on attributes associated with photocatalytic activities including self-cleaning, whiteness and wettability was investigated via central composite design (CCD). The treated cotton samples exhibited self-cleaning activities through methylene blue degradation under day-light exposure along with improved wettability and whiteness. The prepared sample in optimized conditions showed good antibacterial activities against Staphylococcus aureus and Escherichia coli with enhanced fabric tensile strength.
authors.affiliation: Department of Textile Engineering, Amirkabir University of Technology, Functional Fibrous Structures & Environmental Enhancement (FFSEE), Tehran, Iran.
authors.forename: Razieh
authors.initials: R
authors.lastname: Aladpoosh
authors.affiliation: Department of Textile Engineering, Amirkabir University of Technology, Functional Fibrous Structures & Environmental Enhancement (FFSEE), Tehran, Iran. Electronic address: tex5mm@aut.ac.ir.
authors.forename: Majid
authors.initials: M
authors.lastname: Montazer
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry; D002482:Cellulose / Q000031:analogs & derivatives*; D032561:Cotton Fiber; D053761:Nanocomposites / Q000737:chemistry* / Q000528:radiation effects; D009942:Organometallic Compounds / Q000737:chemistry*; D055668:Photochemical Processes; D018030:Silver Compounds / Q000737:chemistry; D013472:Sunlight; D013718:Tensile Strength; D017155:Wettability; D017967:Zinc Compounds / Q000737:chemistry
chemical_list: D000900:Anti-Bacterial Agents; D009942:Organometallic Compounds; D018030:Silver Compounds; D017967:Zinc Compounds; D002482:Cellulose
keywords: Nano photoactive cotton fabric; Self-cleaning activities; Star-like Ag/ZnO nanocomposites; Statistical analysis; Wettability; Whiteness