Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Enzymatic-mediated production of cellulose nanocrystals from recycled pulp.

Authors
Filson-PB; Dawson-Andoh-BE; Schwegler-Berry-D
Source
Green Chem 2009 Nov; 11(11):1808-1814
NIOSHTIC No.
20036116
Abstract
Endoglucanase was used to hydrolyze recycled pulp to produce cellulose nanocrystals. The highest yields of cellulose nanocrystals were obtained by treatment with 84 EGU of endoglucanase per 200 mg recycled pulp at 50 degrees C for 60 min of microwave and conventional heating. Of the two modes of heating investigated, microwave heating at each treatment gave a higher yield than conventional heating. Transmission and scanning electron microscopic analysis of suspensions showed cellulose nanocrystals with widths of 30 nm to 80 nm and lengths of 100 nm to 1.8 mu m). This was within range of the length of cellulose crystals (100 nm to 3.5 mu m) obtained using dynamic light scattering analysis. The average zeta potential of cellulose nanocrystals was -31.37 mV. X-ray diffraction of cellulose nanocrystals, recycled pulp and residues of recycled pulp shows a gradual change in the particle size.
Keywords
Biological-effects; Crystal-structure; Microscopy; Microscopic-analysis; Particle-counters; Particulates
Contact
Paul B. Filson, West Virginia University, Division of Forestry, Davis College of Agriculture Forestry & Consumer Science, Morgantown, WV 26506
CODEN
GRCHFJ
CAS No.
9004-34-6
Publication Date
20091101
Document Type
Journal Article
Email Address
pfilson@mix.wvu.edu
Fiscal Year
2010
NTIS Accession No.
NTIS Price
ISSN
1463-9262
Source Name
Green Chemistry
State
WV
TOP