Lignocellulosic Biomass-Based Carbon Dots: Synthesis Processes, Properties, and Applications.

Area of Science:

• Materials Science
• Nanotechnology
• Green Chemistry

Background:

• Carbon dots (CDs) are novel carbon-based fluorescent nanomaterials with exceptional properties.
• Lignocellulosic biomass, a renewable resource, offers significant potential for creating advanced materials.
• Existing research on lignocellulosic biomass-derived CDs is fragmented, necessitating a comprehensive review.

Purpose of the Study:

• To systematically review the recent advances in the synthesis, formation mechanisms, structural characteristics, optical properties, and applications of CDs derived from lignocellulosic biomass.
• To consolidate current knowledge on cellulose-based, hemicellulose-based, and lignin-based CDs.
• To propose future research directions for enhancing CD synthesis and properties from lignocellulosic feedstocks.

Main Methods:

• Literature review of state-of-the-art research on lignocellulosic biomass-derived CDs.
• Analysis of synthesis processes, formation mechanisms, structural and optical properties.
• Examination of diverse applications across various scientific fields.

Main Results:

• Detailed review of synthesis strategies for CDs from cellulose, hemicellulose, and lignin.
• Discussion of the structure-property relationships influencing CD performance.
• Compilation of current applications, showcasing the versatility of these nanomaterials.

Conclusions:

• Lignocellulosic biomass is a viable and sustainable precursor for producing high-performance carbon dots.
• Further optimization of synthesis technologies is crucial for enhancing CD properties and expanding applications.
• This review serves as a guide for researchers aiming to advance carbon dot technology and explore new frontiers.