Lignin to value-added chemicals and advanced materials: extraction, degradation, and functionalization

Lignin is a green and sustainable feedstock for the production of chemicals and materials; however, its utilization is still low. Over the past decade, remarkable progress has been achieved in the extraction, degradation, and functionalization of lignin and the fabrication of lignin-containing mater...

Full description

Saved in:
Bibliographic Details
Published in:Green chemistry : an international journal and green chemistry resource : GC 2022-10, Vol.24 (2), p.775-775
Main Authors: Gan, Mei Jiao, Niu, Yu Qin, Qu, Xue Jing, Zhou, Chun Hui
Format: Article
Language:English
Subjects:
Aromatic compounds
Biological activity
Catalysis
Chemicals
Copolymerization
Degradation
Drug delivery
Economic analysis
Electrochemistry
Energy storage
Fabrication
Fertilizers
Graft copolymers
Green chemistry
Hydroxyl groups
Lignin
Packaging
Polymers
Slow release fertilizers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Lignin is a green and sustainable feedstock for the production of chemicals and materials; however, its utilization is still low. Over the past decade, remarkable progress has been achieved in the extraction, degradation, and functionalization of lignin and the fabrication of lignin-containing materials. In this review, we provide a critical examination of the in-depth insights into recently developed strategies for the green and efficient extraction, selective degradation and diverse functionalization of lignin. Its green extraction involves the judicious selection of solvent, and mild enzymatic conditions, leading to different technical lignin products. The degradation of lignin can be achieved via thermochemical, electrochemical, photocatalytic and biological processes. Lignin can be functionalized via the modification of its aromatic rings, modification of its hydroxyl groups, modification of its methoxy groups, and graft copolymerization. Based on the top-down degradation and bottom-up functionalization strategies, lignin can be converted into a variety of value-added chemicals and polymers and can be engineered into many types of lignin-based materials. These materials hold great promise in energy storage, targeted drug delivery, efficient adsorption and catalysis, functional packaging and slow-release fertilizers. The correlation among the sources, degradation, and functionalization of lignin and lignin-based materials is discussed. Also, we present a techno-economic analysis on the production of chemicals and materials from lignin. Finally, an outlook for lignin valorization is presented. The recently developed strategies for the degradation and functionalization of lignin enable it to be converted into a wide variety of value-added -chemicals, -and advanced materials.
ISSN:1463-9262
1463-9270
DOI:10.1039/d2gc00092j