Micro Scalable Graphene Oxide Productions Using Controlled Parameters in Bench Reactor

Area of Science:

• Materials Science
• Nanotechnology
• Chemical Engineering

Background:

• Graphene oxide (GO) is a crucial material with diverse applications.
• Efficient and scalable synthesis methods for GO are essential for its widespread adoption.
• Controlling synthesis parameters is key to achieving desired GO properties.

Purpose of the Study:

• To investigate the impact of graphite/oxidizing reagents mass ratios (mG/mROxi) on graphene oxide synthesis.
• To optimize GO production for high yield, structural quality, and cost-effectiveness.
• To establish a reproducible method for producing GO nanosheets using bench-scale reactors.

Main Methods:

• Synthesis of GO using varying graphite amounts (3.0 g, 4.5 g, 6.0 g) with fixed oxidizing reagents.
• Characterization of GO samples using Raman spectroscopy, AFM, XRD, XPS, FTIR, and TGA.
• Analysis of physicochemical properties including layer count, lateral size, and structural integrity.

Main Results:

• GO nanosheets with 1-5 layers and lateral sizes up to 1.8 µm were successfully produced.
• Adjusting the mG/mROxi ratio significantly influenced GO characteristics.
• High yield and structural quality of GO were achieved through optimized ratios.
• The process demonstrated reproducibility and scalability in medium-sized bench reactors.

Conclusions:

• Varying the mG/mROxi ratio is a key strategy for tailoring GO properties.
• The developed method enables cost-effective and scalable production of high-quality GO.
• This approach is well-suited for adapting GO synthesis in medium-sized bench reactors for industrial applications.