Extraction, preparation and characterization of cellulose fibres and nanocrystals from rice husk

Nurain Johar, Ishak Ahmad, Alain Dufresne

Research output: Contribution to journalArticle

448 Citations (Scopus)

Abstract

Cellulose fibres and cellulose nanocrystals were extracted from rice husk. Fibres were obtained by submitting the industrial rice crop to alkali (NaOH) and bleaching treatments. Nanocrystals were extracted from these fibres using sulphuric acid (H 2SO 4) hydrolysis treatment. The material obtained after each stage of the treatments was carefully characterized and its chemical composition was determined. Morphological investigation was performed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Fourier transform infrared (FTIR) spectroscopy showed the progressive removal of non-cellulosic constituents. X-ray diffraction (XRD) analysis revealed that the crystallinity increased with successive treatments. The thermal stability of the rice husk fibres and cellulose nanocrystals was also investigated using thermogravimetric analysis (TGA).

Original languageEnglish
Pages (from-to)93-99
Number of pages7
JournalIndustrial Crops and Products
Volume37
Issue number1
DOIs
Publication statusPublished - May 2012

Fingerprint

nanocrystals
cellulosic fibers
rice hulls
cellulose
thermogravimetry
Fourier transform infrared spectroscopy
sulfuric acid
thermal stability
bleaching
alkalis
X-ray diffraction
transmission electron microscopy
scanning electron microscopy
hydrolysis
chemical composition
rice
crops

Keywords

  • Cellulose nanocrystals
  • Natural fibres
  • Purification
  • Rice husk

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Extraction, preparation and characterization of cellulose fibres and nanocrystals from rice husk. / Johar, Nurain; Ahmad, Ishak; Dufresne, Alain.

In: Industrial Crops and Products, Vol. 37, No. 1, 05.2012, p. 93-99.

Research output: Contribution to journalArticle

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