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Bioinspired reduced graphene oxide nanosheets using Terminalia chebula seeds extract
Sireesh Babu Maddinedi1, Badal Kumar Mandal1, Raviraj Vankayala2
1Trace Elements Speciation Research Laboratory, Environmental and Analytical Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, India.
Summary
This study presents a green synthesis of graphene nanosheets using Terminalia chebula extract, avoiding toxic agents. The extract effectively reduces graphite oxide, producing stable graphene sheets functionalized by polyphenols.
Area of Science:
- Materials Science
- Green Chemistry
- Nanotechnology
Background:
- Graphene oxide (GO) synthesis often involves harsh chemicals.
- Developing eco-friendly reduction methods for GO is crucial for sustainable nanotechnology.
- Plant extracts offer a potential source of natural reducing and stabilizing agents.
Purpose of the Study:
- To report a facile, one-step green synthesis of graphene nanosheets.
- To utilize Terminalia chebula extract for the reduction of graphite oxide.
- To investigate the stabilization mechanism of the resulting reduced graphene oxide (RGO).
Main Methods:
- One-step reduction of graphite oxide using Terminalia chebula extract.
- Characterization of graphite oxide and T. chebula reduced graphene oxide (TCG) using various analytical techniques.
- Analysis of functionalization and stabilization mechanisms.
Main Results:
- Successful green synthesis of graphene nanosheets via T. chebula extract reduction of GO.
- Evidence of oxygen-containing group removal and RGO stabilization.
- Polyphenols from T. chebula functionalize RGO, preventing aggregation and enhancing stability.
Conclusions:
- Terminalia chebula extract provides an effective and environmentally friendly method for RGO synthesis.
- Oxidized polyphenols play a key role in stabilizing the graphene sheets.
- This green approach offers a sustainable alternative for graphene production.
