Naslov
Natural zeolites as effective adsorbents for silver ions removal

Autori
Vojnović, Branka ; Margeta, Karmen ; Cerjan-Stefanović, Štefica

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

Izvornik
Magic World of Textiles, Book of Proceedings / Dragčević, Zvonko - Zagreb, 2010, 955-960

Skup
5th international textile, clothing & design conference

Mjesto i datum
Dubrovnik, Hrvatska, 03.10.2010. - 06.10.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
silver ions ; clinoptilolite ; ion exchange ; removal ; desorption

Sažetak
The aim of this study was to investigate the ability of sodium-modified clinoptilolite from Croatia and Serbia to remove silver ions from aqueous solutions. The mechanism of adsorption process into both zeolites by batch adsorption experiments and ability of zeolites to remove silver ions from aqueous solutions was investigated. The effects of pH, adsorption time, initial metal ion concentration and the desorption treatment were examined. The optimum pH for adsorption was found to be 4, 0 and that the process reaching equilibrium in 45 min. Maximum adsorption capacity, 64, 72 mg Ag+/g and 82, 70 mg Ag+/g zeolite, showed that this adsorbent was excellent for silver ions removal from aqueous media. The desorption of silver from clinoptilolite by use of 0, 01 M EDTA was tested.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo, Tekstilna tehnologija, Temeljne tehničke znanosti

POVEZANOST RADA