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The reuse of wastepaper for the extraction of cellulose nanocrystals

Danial, Wan Hazman Azman and Majid, Zaiton Abdul and Mohd. Muhid, Mohd. Nazlan Azlan and Triwahyono, Sugeng and Bakar, Mohd. Bakri and Ramli, Zainab (2015) The reuse of wastepaper for the extraction of cellulose nanocrystals. Carbohydrate Polymers, 118 . pp. 165-169. ISSN 1448-617

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Official URL: http://dx.doi.org/10.1016/j.carbpol.2014.10.072

Abstract

The study reports on the preparation of cellulose nanocrystals (CNCs) from wastepaper, as an environmental friendly approach of source material, which can be a high availability and low-cost precursor for cellulose nanomaterial processing. Alkali and bleaching treatments were employed for the extraction of cellulose particles followed by controlled-conditions of acid hydrolysis for the isolation of CNCs. Attenuated total reflectance Fourier Transform Infrared (ATR FTIR) spectroscopy was used to analyze the cellulose particles extracted while Transmission electron microscopy images confirmed the presence of CNCs. The diameters of CNCs are in the range of 3-10 nm with a length of 100-300 nm while a crystallinity index of 75.9% was determined from X-ray diffraction analysis. The synthesis of this high aspect ratio of CNCs paves the way toward alternative reuse of wastepaper in the production of CNCs.

Item Type:Article
Uncontrolled Keywords:cellulose, cellulose nanocrystals, nanomaterials, wastepaper
Subjects:A General Works
Divisions:Science
ID Code:58987
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 12:07
Last Modified:04 Oct 2017 13:56

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