Naslov
Precipitation of mesoporous nanosized calcium carbonate

Autori
Kontrec, Jasminka ; Ukrainczyk, Marko ; Brečević, Ljerka ; Kralj, Damir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Book of Abstracts (18th International Symposium on Industrial Crystallization) / Raffaella Damerio, AIDIC - Milano : The Italian Association of Chemical Engineering, 2011, 244-245

Skup
18th International Symposium on Industrial Crystallization

Mjesto i datum
Zürich, Švicarska, 13.09.2011. - 16.09.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
calcium carbonate; nanoparticles; porous material

Sažetak
Mesoporous calcium carbonate particles of nanosized dimensions were produced by bubbling CO2 gas through a suspension of calcium hydroxide. The precipitates were formed through initial generation of an amorphous precursor phase on the surface of Ca(OH)2 particles, its transformation into nanosized crystalline calcite and finally by aggregation into nanostructural mesoporous calcite particles. The structure and morphology of the product were investigated by using scanning and transmission electron microscopy, X-ray diffraction, specific surface area and porosity measurements. The mean particle diameter was found to be approximately 150 nm with the pore size of about 50 nm.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA