Ria Majumdar, Umesh Mishra, Muthusivaramapandian Muthuraj and Biswanath Bhunia* Pages 1 - 19 ( 19 )
Background: Plant is considered as an important feedstock for cellulose, although, algae can be used as reservoir for extraction of cellulose in its pure form. Cellulose nanofiber extracted from plant and algae gains more attention among researchers, due to their size in nano range, low cost for preparation, higher surface area available for tuning, outstanding mechanical properties and eco-friendly nature. However, the quality of nanofiber depends on extraction procedure and feedstock used for the extraction of them. Furthermore, the extracted nanofiber from lignocellulosic biomass is not compatible with liquid and polymeric matrices due to less amount of functional groups available on the surface of them. Therefore, it is urged to comprehend the explicit protocol required for extraction of highly resourceful nanofiber from specific lignocellulosic biomass and surface tuning strategy, which can augment their application in various fields. The present review targets to understand the various polysaccharides, lignin and production of cellulose nanofibers in an economical & efficient way with special attention on its implementation in environmental applications to mitigate the toxic pollutants from our surroundings.
Methods: Research articles related to the cellulose types, feedstocks, physico-chemical features, various extraction and conversion techniques, functionalization methods, and applications on mitigating environmental pollution were collected and reviewed. This review article comprises sections which details various cellulose and nanocellulose types, feedtsocks, followed by their extraction, characterization and applications in mitigation of environmental issues such as heavy metal contaminations.
Results: Studies highlighted in the article detailed types of extraction protocols, so far developed and strategies applied to improve the salient properties of nanofiber for specific applications are enlighten. Conclusion: The functionalized or modified cellulose and nanocellulose have gained significant interest attributed to their unique attributes, physico-chemical characteristics and efficiency in recovery of environmental pollutants. Thus, further exploitation of such natural resources in mitigation of various environmental issues and other realted applications are to be maximized.
Nanofiber, lignocellulosic biomass, chemical treatment, extraction, environmental issues, remediation
Department of Civil Engineering, National Institute of Technology, Agartala, Tripura, Department of Civil Engineering, National Institute of Technology, Agartala, Tripura, Department of Bio Engineering, National Institute of Technology, Agartala, Tripura, Department of Bio Engineering, National Institute of Technology, Agartala, Tripura