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Facile preparation of chitin nanowhisker–gold nanocluster hybrids: effect of feeding ratio and surface amino group contents on gold absorption amount
Author(s) -
Araki Jun,
Moriguchi Yuki
Publication year - 2017
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.3860
Subject(s) - nanoclusters , adsorption , materials science , transmission electron microscopy , absorption (acoustics) , aqueous solution , chemical engineering , scanning electron microscope , chitin , nuclear chemistry , nanotechnology , organic chemistry , chemistry , chitosan , composite material , engineering
Chitin nanowhiskers (ChNWs) hybridized with the densely adsorbed gold nanoclusters (AuNCs) were facilely prepared by a simple mixing of aqueous suspensions of ChNWs and AuNCs. Adsorption of AuNCs on the ChNW surface was confirmed by transmission electron microscopy and scanning electron microscopy with energy dispersive X‐ray spectroscopy. The amounts of adsorbed AuNCs measured by thermogravimetry and combustion using a muffle furnace were in good agreement. While the amount of adsorbed AuNCs increased with AuNCs/ChNWs feeding ratio, we found only a weak dependence of adsorbed AuNC amount on the surface amino group content of ChNWs controlled by pre‐deacetylation of the starting chitin. Copyright © 2016 John Wiley & Sons, Ltd.