Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite

Akhil, Syed; Kumar, Porala Jayanth; Mosali, Venkata Sai Sriram; Dutt, V. G. Vasavi; Kasturi, Satish; Mullamuri, Bhanu; Puvvada, Nagaprasad; Panigrahi, Pravas Kumar; Chava, Rama Krishna; Chandu, Basavaiah

doi:10.1007/s42823-023-00684-z

Cited by 3 publications

(2 citation statements)

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“…The determined I D /I G ratios for RGO was 0.96 and for Ag-RGO nanocomposite was 1.05, which aligns well with the findings reported in existing literature (ideal value was around 1-5). [9] This result further complimented the conclusion that moringa leaves extract served as a potential reducing and capping agent in the fabrication of the Ag-RGO nanocomposite.…”

Section: Raman Analysissupporting

confidence: 70%

“…are proved to be successful as sustainable reducing agents in the synthesis of graphene. [4,[6][7][8][9] Pedro et al reported one-step synthesis of graphene-silver nanocomposite using tea extract with good electrochemical H 2 O 2 sensing application. [10] Nayak et al reported the green synthesis of graphene-silver nanocomposite using Phyllanthus acidus fruit extract which exhibited electrochemical detection abilities for uric acid and dopamine simultaneously.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Catalytic, Antioxidant, and Electrochemical Properties of Green‐Synthesized Graphene‐Silver Nanocomposite Utilizing Moringa Oleifera Leaf Extract

Rahim,

Venkata Nadh,

Saeed

et al. 2024

ChemistrySelect

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Graphene, a remarkable material known for its exceptional properties, can be efficiently produced through environmentally friendly methods using renewable resources and eco‐friendly solvents. Recent studies have highlighted the potential of leaf extracts as effective reducing and stabilizing agents in converting graphene oxide (GO) to graphene. This paper presents a green and cost‐effective approach for the effective deposition of silver nanoparticles (Ag NPs) onto the reduced graphene oxide (RGO) nanosheets. The process involves the co‐reduction of GO and AgNO3 in water using Moringa olifera leaf extract, resulting in the formation of a nanocomposite termed reduced graphene oxide‐silver (Ag‐RGO). The formation of RGO and Ag NP is confirmed through UV‐visible spectroscopy, XRD, and Raman spectroscopy techniques. TEM images revealed the morphology of the nanocomposite, depicting 2‐dimensional graphene sheets adorned with Ag NPs. FT‐IR analysis confirmed the removal of oxygenated functional groups from GO, indicating graphene formation. The synthesized Ag‐RGO nanocomposite exhibited significant catalytic, antioxidant, and electrochemical properties. This study underscores the utilization of natural ingredients as sustainable alternatives for producing multifunctional graphene‐silver nanocomposites.

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Section: Raman Analysissupporting

confidence: 70%