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Functionally Modified Zeolite Powders for Delivering Antibacterial Performance to Cellulosic Paper

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Abstract:

Zeolite powders were first treated with hydrochloric acid, then reacted with sodium chloride, and sodium zeolite (Na-Zeolite) powders were obtained. Further Antibacterial zeolite powders were prepared by loading metal ions such as, Ag+ and Zn2+, Ag+ and Cu2+, Zn2+and Cu2+, Ag+ and Cu2+and Zn2+, through ion exchange. The powders were characterized by minimum Inhibitory concentration (MIC), SEM/EDXA and XRD. Antibacterial paper with antibacterial zeolite powders as filler was fabricated. The results demonstrated that MIC of loading (Ag++Zn2+) zeolite was 125ppm against Staphylococcus aureus and Escherichia coli . MIC of loading (Ag++Cu2++Zn2+) zeolite was 62.5ppm against Candida albicans and Aspergillus Niger. By adding 6% of (Ag++Zn2+), (Ag++Cu2+), and (Ag++Cu2++Zn2+) antibacterial zeolite powders, respectively, antibacterial paper were prepared; and the antibacterial rate of these papers against Staphylococcus aureus, Escherichia coli, Candida albicans and Aspergillus Niger for 4h is close to 100%.

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Periodical:

Key Engineering Materials (Volume 807)

Pages:

141-150

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.807.141

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Online since:

June 2019

Authors:

Lin Yuan, Xue Ren Qian*

Keywords:

Antibacterial Paper, Antimicrobial Filler, Metal Ion Exchange, Zeolite Powders

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© 2019 Trans Tech Publications Ltd. All Rights Reserved

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