Facile surface modification of nanoprecipitated calcium carbonate by adsorption of sodium stearate in aqueous solution

A simple and solvent free two-step process for nanosized and surface-modified precipitated calcium carbonate (ns-PCC) synthesis has been proposed. Synthesized ns-PCC was thoroughly characterized by infra-red (IR), X-ray diffraction (XRD), transmission electron microscopy (TEM) and Langmuir adsorptio...

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Bibliographic Details
Published in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2010-08, Vol.366 (1), p.95-103
Main Authors: Tran, Hoang Vinh, Tran, Lam Dai, Vu, Hoang Dinh, Thai, Hoang
Format: Article
Language:English
Subjects:
Adsorption
Aqueous adsorption
Calcium carbonate
Carbonation
Chemistry
Exact sciences and technology
General and physical chemistry
Nanocomposites
Nanomaterials
Nanosized and surface-modified precipitated calcium carbonate (ns-PCC)
Nanosized precipitated calcium carbonate (n-PCC)
Nanostructure
Particle size
Sodium
Surface chemistry
Surface physical chemistry
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Summary:A simple and solvent free two-step process for nanosized and surface-modified precipitated calcium carbonate (ns-PCC) synthesis has been proposed. Synthesized ns-PCC was thoroughly characterized by infra-red (IR), X-ray diffraction (XRD), transmission electron microscopy (TEM) and Langmuir adsorption study. Dynamic laser scattering (DLS) results on particle size showed a good correlation with those obtained by the proposed empirical model. Two aspects of nucleation and surface modification and the relationship of particle size on impact experimental parameters were also discussed.
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2010.05.029