Coating regenerated cellulose fibers with gold nanoparticles for uv-protection and anti-bacterial properties
Loading...
URL
Journal Title
Journal ISSN
Volume Title
Kemian tekniikan korkeakoulu |
Master's thesis
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Authors
Date
2018-07-31
Department
Major/Subject
Biomass Refining
Mcode
CHEM3021
Degree programme
Master's Programme in Chemical, Biochemical and Materials Engineering
Language
en
Pages
64+2
Series
Abstract
A facile green synthesis route for gold nanoparticles (AuNPs) was developed to realize multifunction for Ioncell fabrics. Bleached birch pulp was used to prepare gold nanoparticles (AuNPs) by reducing chloroauric acid (CA) in situ on cellulose, forming cellulose-AuNPs compounds. The color of pulp changed from white to purple due to the localized surface plasmon resonance (LSPR) effect of AuNPs. Subsequently, the obtained colored pulp was utilized to spin fibers after dissolving in the [DBNH][ OAc]. And finally, the fabrics were knitted for the end-use. During this process, factors including the added amount of CA solution, pH, the addition of CTAB, and the combination of silver ions, were studied. The Ioncell fibers treated with AuNPs showed good mechanical properties. Moreover, the AuNPs endowed Ioncell fabrics with excellent washing fastness and strong UV protection property.Description
Supervisor
Sixta, HerbertThesis advisor
Haslinger, SimoneKeywords
gold nanoparticles, Ioncell fibers, coloration, in-situ synthesis, UV blocking