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Co2SiO4 nanostructures/nanocomposites: synthesis and investigations of optical, magnetic, photocatalytic, thermal stability and flame retardant properties

Co2SiO4 nanostructures/nanocomposites: synthesis and investigations of optical, magnetic,... Cobalt orthosilicate (Co2SiO4) nanostructures and nanocomposites were successfully synthesized via a sol–gel method, by controlling different conditions. The gels were prepared starting from cobalt (II) acetatete tetrahydrate (Co(CH3COO)2·4H2O), tetraethyl orthosilicate, NH3 and carbohydrate at calcination temperature 500–700 °C for 5 h. We choose 700 °C as optimum calcination temperature base on XRD results. SEM images showed that NH3 and glucose are optimum catalysis and capping agent, respectively, in our experimental conditions. For the first time, glucose, fructose, sucrose, maltose and lactose were applied as capping agents to green synthesis of cobalt orthosilicates. The optical and magnetic properties of Co2SiO4 nanostructures were investigated by UV–Vis and VSM, respectively. Also, for the first time photocatalytic behavior of these nanostructures was evaluated using UV–Vis and degradation of methyl orange, methylene blue, erythrosine and eosine. DSC and TG curves of the nanocomposites showed both thermal stability and flame retardant property for Co2SiO4 nanocomposites prepared in the presence of the PS and PSU. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

Co2SiO4 nanostructures/nanocomposites: synthesis and investigations of optical, magnetic, photocatalytic, thermal stability and flame retardant properties

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References (51)

Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
DOI
10.1007/s10854-018-8695-y
Publisher site
See Article on Publisher Site

Abstract

Cobalt orthosilicate (Co2SiO4) nanostructures and nanocomposites were successfully synthesized via a sol–gel method, by controlling different conditions. The gels were prepared starting from cobalt (II) acetatete tetrahydrate (Co(CH3COO)2·4H2O), tetraethyl orthosilicate, NH3 and carbohydrate at calcination temperature 500–700 °C for 5 h. We choose 700 °C as optimum calcination temperature base on XRD results. SEM images showed that NH3 and glucose are optimum catalysis and capping agent, respectively, in our experimental conditions. For the first time, glucose, fructose, sucrose, maltose and lactose were applied as capping agents to green synthesis of cobalt orthosilicates. The optical and magnetic properties of Co2SiO4 nanostructures were investigated by UV–Vis and VSM, respectively. Also, for the first time photocatalytic behavior of these nanostructures was evaluated using UV–Vis and degradation of methyl orange, methylene blue, erythrosine and eosine. DSC and TG curves of the nanocomposites showed both thermal stability and flame retardant property for Co2SiO4 nanocomposites prepared in the presence of the PS and PSU.

Journal

Journal of Materials Science: Materials in Electronics – Springer Journals

Published: Feb 12, 2018

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