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Two-pot in situ preparation, characterization and performance of nano silver/polydopamine/cellulose fiber antibacterial paper

  • LI Chunting ,
  • QIAN Xueren ,
  • AN Xianhui
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  • Key Laboratory of Bio-based Material Science and Technology of Ministry of Education; Northeast Forestry University, Harbin, 150040, China

Received date: 2016-02-26

  Revised date: 2016-03-23

  Online published: 2016-10-21

Abstract

The nano silver/polydopamine/cellulose fiber(nanoAg/PDA/CF) antibacterial paper is successfully in situ prepared by the twopot method without using any additional reducing agent. The scanning electron microscopy(SEM) and the energy dispersive X-ray spectroscopy(EDX) analyses reveal that the spherical or cuboidal silver nanopartiles with the size of 70~150 nm are loaded on the surface of the nanoAg/PDA/CF antibacterial paper. The X-ray diffraction(XRD) and the thermogravimetric(TG) analyses confirm that the silver nanopartiles are in situ generated and deposited on the polydopamine functionalized cellulose fiber surface. The novel nanoAg/PDA/CF antibacterial paper shows a remarkable antibacterial feature against both S. aureus and E. coli. The optimum preparative conditions of the nanoAg/PDA/CF composite are: the pH value of 8.5, the dopamine concentration of 125 mg/L, the silver nitrate concentration of 375 mg/L, the dopamine self-polymerization time of 2 h, and the room temperature.

Cite this article

LI Chunting , QIAN Xueren , AN Xianhui . Two-pot in situ preparation, characterization and performance of nano silver/polydopamine/cellulose fiber antibacterial paper[J]. Science & Technology Review, 2016 , 34(19) : 81 -86 . DOI: 10.3981/j.issn.1000-7857.2016.19.013

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