Recent Progress in Modification Strategies of Nanocellulose-Based Aerogels for Oil Absorption Application

Area of Science:

• Materials Science
• Environmental Science
• Chemical Engineering

Background:

• Oil spills and oily wastewater pose significant environmental and biodiversity threats.
• Existing remediation techniques have limitations in efficiency and environmental impact.
• Biopolymeric aerogels, particularly nanocellulose-based ones, show promise as a sustainable solution.

Purpose of the Study:

• To review the fabrication and modification strategies of nanocellulose-based aerogels.
• To highlight their application in oil absorption and environmental remediation.
• To discuss future potential and recent advancements in enhancing aerogel performance.

Main Methods:

• Review of existing literature on nanocellulose aerogel fabrication.
• Analysis of various modification strategies to improve aerogel properties.
• Discussion of application-specific performance data for oil absorption.

Main Results:

• Nanocellulose aerogels exhibit superior selective oil absorption capacity.
• Modification strategies enhance hydrophobicity, oil capacity, and selectivity.
• Functionalized aerogels can be made compressible, elastic, and magnetically responsive for easy recovery.

Conclusions:

• Nanocellulose-based aerogels are a highly effective and green material for oil spill remediation.
• Strategic modifications are crucial for optimizing performance and reusability.
• These materials hold significant potential for future environmental, medical, and industrial applications.