Adsorption Studies of Heavy Metal Ions on Mesoporous Aluminosilicate, Novel Cation Exchanger

• Published in: Journal of hazardous materials Vol. 176; no. 1; pp. 252 - 256
• Main Authors: Sepehrian, H., Ahmadi, S.J., Waqif-Husain, S., Faghihian, H., Alighanbari, H.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 15.04.2010; Elsevier
• Subjects: Adsorbents; Adsorption; Aluminosilicate; Aluminosilicates; Aluminum; Aluminum silicates; Aluminum Silicates - chemistry; Applied sciences; Cadmium; Cation exchanging; Chemical engineering; Exact sciences and technology; Heavy metal ions; Heavy metals; Ion Exchange; Ion exchangers; Mesoporous; Metals, Heavy - isolation & purification; Pollution; Porosity; Radionuclides; Strontium; Uranium; Heavy metal ions; Aluminosilicate; Radionuclides; Adsorption; Mesoporous; Radioactive pollution; Thermogravimetry; Metal ion; Desorption; Radioisotope; Nitrogen; Heavy metal; Cation exchanger
• ISSN: 0304-3894; 1873-3336
• DOI: 10.1016/j.jhazmat.2009.11.020

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.