Chitin-Derived Graphene Quantum Dots

RGB Full-Color Emission

Sustainable graphene quantum dots rapidly synthesized from natural chitin in 30 minutes, with tunable red, green, and blue emission enabling full-color LEDs spanning the visible spectrum including pure white light.

Gao, Tian · Huiling, Zhao · Shengnan, Guo · Daoyuan, Liu · Shujia, Fu · Peixuan, Deng · Cai, Qun · Liu, Yi

ACS Sustainable Chemistry & Engineering 2026

Specifications

Synthesis Time

{'zh': '30', 'en': '30'} min

Number of LED Emission Colors

{'zh': '8', 'en': '8'}

Pure White Light CIE Coordinates

{'zh': '0.32, 0.33', 'en': '0.32, 0.33'}

Advantages

30-Minute Synthesis

Microwave-assisted method drastically shortens the reaction, completing the chitin-to-GQD conversion within 30 minutes.

Tunable Emission Color

Using different Lewis acid catalysts in the Scholl reaction enables precise microstructure control, yielding blue-, green-, and red-emissive GQDs.

Full-Color LEDs

LEDs fabricated with these GQDs emit eight distinct colors spanning the visible spectrum, including pure white light.

Applications

• Quantum Dot Emissive Materials：Provides heavy-metal-free red, green, and blue emitters for LEDs and displays.
• Full-Color LED Displays：One set of quantum dots yields eight colors, simplifying full-color LED fabrication.
• Biomass Valorization：Converts low-value chitin into high-value quantum dots efficiently.
• Sustainable Materials：Uses renewable biomass instead of fossil feedstocks under mild conditions.