Related Experiment Video
Updated: Aug 23, 2025
08:57
Scalable Syntheses of Graphene Oxide and Reduced Graphene Oxide using Cascade Design Oxidation and Highly Basic Reduction Reactions
Published on: July 3, 2025
470
Eco-Friendly Approach for Graphene Oxide Synthesis by Modified Hummers Method.
Néstor Méndez-Lozano1, Francisco Pérez-Reynoso1, Carlos González-Gutiérrez1
1Universidad del Valle de México, Campus Queretaro, Blvd. Juriquilla No. 1000 A Del. Santa Rosa Jáuregui, Queretaro C.P. 76230, Mexico.
Materials (Basel, Switzerland)
|October 27, 2022
Summary
This study presents an eco-friendly method for producing graphene oxide (GO) without toxic gases. The modified Hummers method yields a homogeneous GO structure, suitable for various applications.
Area of Science:
- Materials Science
- Nanotechnology
- Green Chemistry
Background:
- Graphene oxide (GO) is a crucial material in nanotechnology.
- Traditional Hummers method for GO synthesis produces toxic gases.
- Developing environmentally friendly synthesis routes is essential.
Purpose of the Study:
- To synthesize graphene oxide (GO) using a modified Hummers method.
- To eliminate the use of sodium nitrate, thereby avoiding toxic gas generation.
- To investigate the effect of drying temperature on GO properties.
Main Methods:
- Modified Hummers method (without sodium nitrate).
- Drying GO at two different temperatures (60 °C and 90 °C).
- Characterization using X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Raman Spectroscopy, and Scanning Electron Microscopy (SEM).
Main Results:
- FTIR confirmed the presence of hydroxyl, carboxyl, and carbonyl functional groups.
- XRD indicated a slightly larger interlayer spacing for GO dried at 60 °C (GO60) compared to 90 °C (GO90).
- SEM images revealed a homogeneous network of graphene oxide layers with thicknesses of approximately 6–9 nm.
Conclusions:
- The modified Hummers method provides an environmentally friendly approach to graphene oxide production.
- Drying temperature influences the interlayer spacing of the synthesized graphene oxide.
- The synthesized graphene oxide possesses desirable structural and functional properties for potential applications.
