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Green Synthesis of Silver Nanoparticles and Their Reduced Graphene Oxide Nanocomposites as Antibacterial Agents: A Bio-inspired Approach

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Acta Metallurgica Sinica (English Letters) Aims and scope

Abstract

In this paper, silver nanoparticles (AgNPs) and AgNPs/reduced graphene oxide (RGO) nanocomposites were prepared using lemon juice under microwave irradiation (MWI) and UV light irradiation. AgNPs with face-centered cubic structure RGO peaks were observed by X-ray diffraction. The UV–Vis spectrum showed modifications in the absorption peaks of the AgNPs with the concentration of the precursor solution and irradiation time, and the optimized condition was obtained for 20 min MWI and 60 s of UV light. Raman analysis confirmed the presence of RGO as D and G bands in the spectrum. Transmission electron microscopy analyses confirmed that the AgNPs of size ranging from 3 to 8 nm were anchored onto the RGO sheets. The antibacterial properties of the AgNPs/RGO nanocomposites were investigated using gram-negative bacteria. The results revealed that AgNPs/RGO nanocomposites consisting of approximately 5 wt% AgNPs can achieve antibacterial performance similar to that of neat AgNPS. This method can be useful for the applications of AgNPs-based nanocomposites, where minute amount of silver will be utilized.

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Acknowledgment

This work was supported by the Internal Research Grant, Alfaisal University (IRG 2014, No. 4050101011410).

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Authors and Affiliations

  1. College of Science & General Studies, Alfaisal University, Riyadh, Saudi Arabia

    Edreese Alsharaeh, Sarah Alazzam, Faheem Ahmed, Nishat Arshi, Mohammed Al-Hindawi & Garwin Kim Sing

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  1. Edreese Alsharaeh
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  2. Sarah Alazzam
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  3. Faheem Ahmed
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  4. Nishat Arshi
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  5. Mohammed Al-Hindawi
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  6. Garwin Kim Sing
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Correspondence to Edreese Alsharaeh.

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Available online at http://springer.longhoe.net/journal/40195.

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Alsharaeh, E., Alazzam, S., Ahmed, F. et al. Green Synthesis of Silver Nanoparticles and Their Reduced Graphene Oxide Nanocomposites as Antibacterial Agents: A Bio-inspired Approach. Acta Metall. Sin. (Engl. Lett.) 30, 45–52 (2017). https://doi.org/10.1007/s40195-016-0485-z

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  • DOI: https://doi.org/10.1007/s40195-016-0485-z

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