Graphene membrane for efficient dye and pigment separation

Overview

Joshi's Research Group presents an innovative solution for dye and pigment separation using graphene oxide (GO) membranes. These membranes are designed to remove over 99% of dyes like Methylene Blue and Alizarin Red S from highly concentrated solutions. The tailored structure of the membranes ensures high rejection rates, excellent water permeance, and anti-fouling properties, making them ideal for sustainable industrial applications.

Technical specifications

Key features:

• Tunable pore size: Allows for efficient size exclusion of target molecules, ensuring effective separation.
• Hydrophilic nature: Enhances water flux and reduces fouling.
• Stability: Proven stability with over 144 hours of continuous operation.
• Recyclability: Designed to meet sustainability standards, allowing for prolonged use and reduced waste.

These features are achieved using a scalable manufacturing process that ensures uniform pore sizes, making the technology suitable for large-scale industrial use.

Technology readiness level

Currently, the technology is at TRL 4, indicating that it has been validated in a laboratory environment. Future efforts will focus on developing a prototype for industrial conditions, optimizing membrane performance, and conducting plant trials to meet industrial requirements.