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Journal
2014 | 12 | 3 | 312-317
Article title

Agglomeration of ZnS nanoparticles without capping additives at different temperatures

Content
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EN
Abstracts
EN
ZnS nanoparticles were precipitated in diluted aqueous solutions of zinc and sulphide ions without capping additives at a temperature interval of 0.5–20°C. ZnS nanoparticles were arranged in large flocs that were disaggregated into smaller agglomerates with hydrodynamic sizes of 70–150 nm depending on temperature. A linear relationship between hydrodynamic radius (R
a) and temperature (T) was theoretically derived as R
a =652 - 2.11 T.The radii of 1.9–2.2 nm of individual ZnS nanoparticles were calculated on the basis of gap energies estimated from their UV absorption spectra. Low zeta potentials of these dispersions of −5.0 mV to −6.3 mV did not depend on temperature. Interactions between individual ZnS nanoparticles were modelled in the Material Studio environment. Water molecules were found to stabilize ZnS nanoparticles via electrostatic interactions.
Publisher

Journal
Year
Volume
12
Issue
3
Pages
312-317
Physical description
Dates
published
1 - 3 - 2014
online
21 - 12 - 2013
Contributors
author
  • VŠB-Technical University of Ostrava
author
  • Charles University in Prague, Faculty of Mathematics and Physics
  • VŠB-Technical University of Ostrava
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-013-0385-2
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