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2008, vol. 62, br. 3, str. 131-137
Uticaj modifikacije na strukturna, teksturalna i adsorpciona svojstva bentonita
aUniverzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju - IHTM
bUniverzitet u Beogradu, Hemijski fakultet

e-adresanatasha@nanosys.ihtm.bg.ac.yu
Projekat:
Projekat Ministarstva nauke Republike Srbije, br. TR 6712B

Sažetak
Prirodna bentonitna glina sa lokaliteta Bogovina u Srbiji je natrijumski izmenjena i modifikovana heksadeciltrimetil amonijum-bromidom kao surfaktantom, pri čemu je dobijen organobentonit. Ispitivan je uticaj modifikacije na strukturu, teksturalna i adsorpciona svojstva bentonita. Utvrđeno je da primenjeni postupci modifikacije dovode isključivo do izmene katjona u medulamelamom sloju smektita, dok modifikacija ne deluje na druge prateće minerale u bentonitu (kvare, kalcit, feldspat). Uprkos neznatnoj specifičnoj površini sintetizovani organobentonit zahvaljujući novodobijenoj organofilnosti površine pokazuje izuzetna adsorpciona svojstva prema tekstilnim bojama, imajući adsorpcioni kapacitet oko 2 puta veći od aktivnog uglja.
Reference
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O članku

jezik rada: srpski
vrsta rada: naučni članak
DOI: 10.2298/HEMIND0803131J
objavljen u SCIndeksu: 14.07.2008.

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