A1 Journal article (refereed), original research

Green thermal-assisted synthesis and characterization of novel cellulose-Mg(OH)2 nanocomposite in PEG/NaOH solvent


Publication Details
Authors: Ponomarev Nikolai, Repo Eveliina, Srivastava Varsha, Sillanpää Mika
Publisher: Elsevier
Publication year: 2017
Language: English
Related Journal or Series Information: Carbohydrate Polymers
Journal name in source: Carbohydrate Polymers
Volume number: 176
Start page: 327
End page: 335
Number of pages: 9
ISSN: 0144-8617
JUFO-Level of this publication: 2
Open Access: Not an Open Access publication

Abstract

Synthesis of nanocomposites was performed using microcrystalline cellulose (MCC), MgCl2
in PEG/NaOH solvent by a thermal-assisted method at different
temperatures by varying time and the amount of MCC. Results of XRD,
FTIR, and EDS mapping showed that the materials consisted of only cellulose (CL) and magnesium hydroxide (MH). According to FTIR and XRD, it was found that crystallinity of MH in cellulose nanocomposites is increased with temperature and heating time and decreased with increasing of cellulose amount. The PEG/NaOH solvent has a significant effect on cellulose and Mg(OH)2 morphology. BET and BJH results demonstrated the effects of temperature and cellulose amount on the pore size corresponding to mesoporous materials. TG and DTG analyses showed the increased thermal stability of cellulose
nanocomposites with increasing temperature. TEM and SEM analyses showed
an even distribution of MH nanostructures with various morphology in
the cellulose matrix. The cellulose presented as the polymer matrix in the nanocomposites. It was supposed the possible interaction between cellulose and Mg(OH)2. The novel synthesis method used in this study is feasible, cost-efficient and environmentally friendly.


KeywordsBrucite, Cellulose, Magnesium hydroxide, Mg(OH)2, Nanocomposite, PEG/NaOH

Last updated on 2018-19-10 at 07:55