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

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...

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Bibliographic Details
Published in:Applied sciences 2017-08, Vol.7 (8), p.852
Main Authors: Hou, Shiyu, Li, Jihui, Huang, Xiaochuan, Wang, Xiaomao, Ma, Liqiang, Shen, Wanci, Kang, Feiyu, Huang, Zheng-Hong
Format: Article
Language:English
Subjects:
Ag nanoparticles
Ag-EG composites
Antibacterial activity
Antibacterial materials
Bacteria
Chemical reduction
Electron microscopy
exfoliated graphite
GICs
Graphite
Industrial applications
Infrared spectroscopy
Intrusion
Mercury
Nanoparticles
Porosity
Pseudomonas aeruginosa
Scanning electron microscopy
Silver
Transmission electron microscopy
X-ray diffraction
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Summary: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.
ISSN:2076-3417
2076-3417
DOI:10.3390/app7080852