title: Adsorption studies of heavy metal ions on mesoporous aluminosilicate, novel cation exchanger.
abstract: Mesoporous aluminosilicates, have been prepared with various mole ratios of Si/Al and Cethyltrimethylammonium bromide (CTAB). They have been characterized by XRD, nitrogen adsorption/desorption measurements, FT-IR and thermogravimetry. Adsorption behavior of heavy metal ions on this adsorbent have been studied and discussed. The results show that incorporation of aluminum ions in the framework of the mesoporous MCM-41 has transformed it into an effective cation exchanger. The K(d) values of several metal ions have been increased. Separation of Sr(II)-Ce(III), Sr(II)-U(VI) and Cd(II)-Ce(III) has been developed on columns of this novel mesoporous cation exchanger.
authors: NFCRS, Nuclear Science and Technology Research Institute, AEOI, P.O. Box 11365/8486, Tehran, Iran. hsepehrian@yahoo.com
authors: H
authors: H
authors: Sepehrian
authors: S J
authors: SJ
authors: Ahmadi
authors: S
authors: S
authors: Waqif-Husain
authors: H
authors: H
authors: Faghihian
authors: H
authors: H
authors: Alighanbari
mesh_terms: D000327:Adsorption; D000538:Aluminum Silicates / Q000737:chemistry*; D002104:Cadmium; D007474:Ion Exchange; D019216:Metals, Heavy / Q000302:isolation & purification*; D016062:Porosity; D013324:Strontium; D014501:Uranium
chemical_list: D000538:Aluminum Silicates; D019216:Metals, Heavy; D002104:Cadmium; C049037:aluminosilicate; D014501:Uranium; D013324:Strontium