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Studies on cellulose nanocrystals isolated from groundnut shells.

Saleheen Bano1, Yuvraj Singh Negi1

  • 1Department of Polymer and Process Engineering, Indian Institute of Technology, Roorkee, Saharanpur Campus, Saharanpur 247001, India.

Carbohydrate Polymers
|December 19, 2016
PubMed
Summary
This summary is machine-generated.

Researchers extracted cellulose nanocrystals (CNCs) from waste groundnut shells, a sustainable nanomaterial source. These CNCs exhibit high molecular weight, offering potential for advanced material applications.

Keywords:
Cellulose nanocrystalsGroundnut shellsStatic light scattering

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Biomass Utilization

Background:

  • Agricultural waste, like groundnut shells, is often underutilized.
  • Biomass offers a renewable source for advanced material production.
  • Nanomaterials derived from waste can enhance commercial value.

Purpose of the Study:

  • To isolate cellulose nanocrystals (CNCs) from abundant groundnut shell waste.
  • To characterize the structural, thermal, morphological, and elemental properties of CNCs.
  • To analyze the molecular weight and radius of gyration of CNCs using light scattering.

Main Methods:

  • Cellulose nanocrystal isolation from groundnut shells.
  • Structural, thermal, and morphological analysis using advanced techniques.
  • Light scattering studies to determine weight average molecular weight (Mw) and radius of gyration (Rg).

Main Results:

  • Successful isolation of CNCs from groundnut shells.
  • Characterization confirmed the properties of the derived CNCs.
  • High Mw (∼105 g/mol) obtained for CNCs in a lithium chloride (LiCl)/N,N-dimethylacetamide (DMAc) system.
  • Mw and Rg were influenced by LiCl and polymer concentrations, with higher values observed at low LiCl and high polymer concentrations.

Conclusions:

  • Groundnut shells are a viable waste source for producing valuable cellulose nanocrystals.
  • The study demonstrates the potential of CNCs in nanomaterial applications.
  • Optimizing LiCl and polymer concentrations can tune CNC properties for specific uses.