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Appl. Sci. 2017, 7(8), 852; doi:10.3390/app7080852

Silver Nanoparticles-Loaded Exfoliated Graphite and Its Anti-Bacterial Performance

1
State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
2
School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
3
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environment, Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Received: 11 July 2017 / Revised: 13 August 2017 / Accepted: 15 August 2017 / Published: 18 August 2017
(This article belongs to the Special Issue Nano-systems for Antimicrobial Therapy)
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Abstract

One antibacterial material was prepared from exfoliated graphite (EG) decorated with silver nanoparticles (AgNPs). The EG was prepared by the graphite intercalated compound process, AgNPs were prepared by chemical reduction of AgNO3 in the presence of NaBH4. The AgNPs-loaded EG (Ag-EG) composite was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), nitrogen adsorption, mercury intrusion porosimetry, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The antibacterial effect of the Ag-EG was evaluated by using the zone of inhibition method. The loaded AgNPs were highly dispersed on EG sheets and most of them have a size less than 10 nm. The Ag loading slightly increased the surface area of EG. It is shown that the Ag-EG had antibacterial activity and anti-adhesion properties against Pseudomonas aeruginosa and Staphylococcus aureus. It suggests that Ag-EG composites could be used in a variety of industrial applications that require an antibacterial effect. View Full-Text
Keywords: exfoliated graphite; GICs; Ag nanoparticles; Ag-EG composites; antibacterial activity; Pseudomonas aeruginosa exfoliated graphite; GICs; Ag nanoparticles; Ag-EG composites; antibacterial activity; Pseudomonas aeruginosa
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Hou, S.; Li, J.; Huang, X.; Wang, X.; Ma, L.; Shen, W.; Kang, F.; Huang, Z.-H. Silver Nanoparticles-Loaded Exfoliated Graphite and Its Anti-Bacterial Performance. Appl. Sci. 2017, 7, 852.

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