Functionalization of cellulose nanocrystals for advanced applications

Area of Science:

• Materials Science
• Nanotechnology
• Green Chemistry

Background:

• Growing demand for sustainable alternatives to petroleum-derived, non-biodegradable materials.
• Cellulose nanocrystals (CNCs), derived from acid hydrolysis of biomass, are a promising eco-friendly material.
• CNCs contribute to reducing carbon dioxide emissions, mitigating global warming.

Purpose of the Study:

• To review recent advancements in functionalized cellulose nanocrystals (CNCs).
• To explore diverse applications of these sustainable nanomaterials.
• To discuss challenges and future potential of CNCs in various fields.

Main Methods:

• Acid hydrolysis of cellulosic materials to produce CNCs.
• Functionalization of CNCs to tailor properties for specific applications.
• Review of recent research and industrial developments in CNC production and application.

Main Results:

• CNCs possess advantageous properties: high surface area, functionalizable hydroxyl groups, colloidal stability, low toxicity, chirality, and mechanical strength.
• Large-scale production facilities (up to 1000 kg/day) are operational, increasing interest.
• Functionalized CNCs have demonstrated potential in numerous applications.

Conclusions:

• Functionalized CNCs are versatile, sustainable nanomaterials with significant potential.
• Addressing current challenges will further unlock their widespread adoption.
• CNCs represent a key material for future green technologies.