Sequential repetitive chemical reduction technique to study size property relationships of graphene attached Ag nanoparticle

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dc.contributor.authorHaider, M.S
dc.contributor.authorShao, Godlisten N.
dc.contributor.authorKim, Heetaik
dc.date.accessioned2020-04-23T10:20:59Z
dc.date.available2020-04-23T10:20:59Z
dc.date.issued2015
dc.descriptionThe present study demonstrates a novel, systematic and application route synthesis approach to develop size-property relationship and control the growth of silver nanoparticles (AgNPs) embedded on reduced graphene oxide (rGO). A sequential repetitive chemical reduction technique to observe the growth of silver nanoparticles (AgNPs) attached to rGO, was performed on a single solution of graphene oxide (GO) and silver nitrate solution (7 runs, R1–R7) in order to manipulate the growth and size of the AgNPs. The physical–chemical properties of the samples were examined by RAMAN, XPS, XRD, SEM-EDAX, and HRTEM analyses. It was confirmed that AgNPs with diameter varying from 4 nm in first run (R1) to 50 nm in seventh run (R7) can be obtained using this technique. A major correlation between particle size and activities was also observed. Antibacterial activities of the samples were carried out to investigate the disinfection performance of the samples on the Gram negative bacteria (Escherichia coli). It was suggested that the sample obtained in the third run (R3) exhibited the highest antibacterial activity as compared to other samples, toward disinfection of bacteria due to its superior properties. This study provides a unique and novel application route to synthesize and control size of AgNPs embedded on graphene for various applications.en_US
dc.description.abstractThe present study demonstrates a novel, systematic and application route synthesis approach to develop size-property relationship and control the growth of silver nanoparticles (AgNPs) embedded on reduced graphene oxide (rGO). A sequential repetitive chemical reduction technique to observe the growth of silver nanoparticles (AgNPs) attached to rGO, was performed on a single solution of graphene oxide (GO) and silver nitrate solution (7 runs, R1–R7) in order to manipulate the growth and size of the AgNPs. The physical–chemical properties of the samples were examined by RAMAN, XPS, XRD, SEM-EDAX, and HRTEM analyses. It was confirmed that AgNPs with diameter varying from 4 nm in first run (R1) to 50 nm in seventh run (R7) can be obtained using this technique. A major correlation between particle size and activities was also observed. Antibacterial activities of the samples were carried out to investigate the disinfection performance of the samples on the Gram negative bacteria (Escherichia coli). It was suggested that the sample obtained in the third run (R3) exhibited the highest antibacterial activity as compared to other samples, toward disinfection of bacteria due to its superior properties. This study provides a unique and novel application route to synthesize and control size of AgNPs embedded on graphene for various applications.en_US
dc.identifier.citationHaider et al.en_US
dc.identifier.urihttp://hdl.handle.net/20.500.11810/5422
dc.language.isoenen_US
dc.publisherSolid State Sciencesen_US
dc.subjectChemical reduction; Nanoparticlesen_US
dc.titleSequential repetitive chemical reduction technique to study size property relationships of graphene attached Ag nanoparticleen_US
dc.typeJournal Articleen_US
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