A glucose modified filter paper for effective oil/water separation.

Area of Science:

• Materials Science
• Environmental Engineering
• Chemical Engineering

Background:

• Efficient and cost-effective oil/water separation is crucial for industrial processes.
• Natural cellulose-based filter paper offers a sustainable and biodegradable platform for separation technologies.

Purpose of the Study:

• To develop a superhydrophilic and underwater superoleophobic filter paper for enhanced oil/water separation.
• To investigate the performance of modified filter paper in diverse and challenging environments.

Main Methods:

• Preparation of modified filter paper via aldol condensation of glucose with cellulose.
• Characterization using IR-spectroscopy, SEM, and wettability measurements.
• Testing separation efficiency with various oil/water mixtures under different conditions (pH, salinity, temperature).

Main Results:

• The modified filter paper exhibited superhydrophilicity and underwater superoleophobicity with high oil contact angles (>162°).
• Achieved high water recovery (>99% for emulsions) across acidic, alkaline, saline conditions, and varying temperatures.
• Demonstrated excellent recyclability and economic scalability.

Conclusions:

• The glucose-modified filter paper is a highly effective and robust material for oil/water separation.
• The developed method is economical and scalable, indicating significant potential for industrial applications.
• This approach offers a sustainable and efficient solution to industrial oil/water separation challenges.