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One-step flame synthesis of silver nanoparticles for roll-to-roll production of antibacterial paper

Research output: Contribution to journalArticleScientificpeer-review

Details

Original languageEnglish
Pages (from-to)558-565
Number of pages8
JournalApplied Surface Science
Volume420
DOIs
Publication statusPublished - 31 Oct 2017
Publication typeA1 Journal article-refereed

Abstract

Nanoparticles are used in several applications due to the unique properties they possess compared to bulk materials. Production techniques have continuously evolved over the years. Recently, there has been emphasis on environmentally friendly manufacturing processes. Substrate properties often limit the possible production techniques and, for example; until recently, it has been difficult to incorporate nanoparticles into paper. Chemical reduction of a precursor in the presence of paper changes the bulk properties of paper, which may limit intended end-use. In this study, we present a novel technique for incorporating silver nanoparticles into paper surface using a flame pyrolysis procedure known as Liquid Flame Spray. Papers precoated with mineral pigments and plastic are used as substrates. Silver nanoparticles were analyzed using SEM and XPS measurements. Results show a homogeneous monolayer of silver nanoparticles on the surface of paper, which demonstrated antibacterial properties against E. coli. Paper precoated with plastic showed more nanoparticles on the surface compared to pigment coated paper samples except for polyethylene-precoated paper. The results demonstrate a dry synthesis approach for depositing silver nanoparticles directly onto paper surface in a process which produces no effluents. The production technique used herein is up scalable for industrial production of antibacterial paper.

ASJC Scopus subject areas

Keywords

  • Antibacterial paper, Liquid flame spray, Roll-to-roll processing, Silver nanoparticles

Publication forum classification

Field of science, Statistics Finland