Synthesis and Characterization of Mesoporous Aluminosilicates for Copper Removal from Aqueous Medium


In this study the characterization of an aluminosilicate synthesized from commercial Al2(SO4)3 and colloidal SiO2 is presented, as well as its capacity for the removal of copper from aqueous solution. Characterization of the synthesized material was performed using X-ray diffraction, BET nitrogen adsorption-desorption, mass titration and the Boehm method. In order to obtain stable agglomeration and enhance its surface area (165 - 243 m2/g) and solid adsorbing capabilities, the molar ratio SiO2:Al2O3 (1:3, 1:1 and 3:1) was studied, the solubility of the preparation material, synthesis-procedure time and solution pH function were also examined. The maximum capacity to remove copper ions from an aqueous solution by synthesized aluminosilicate was 16 mg/g at pH 4 and 25℃. The Langmuir model fitted better to the copper adsorption experimental data.

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D. Río, A. Aguilera-Alvarado, I. Cano-Aguilera, M. Martínez-Rosales and S. Holmes, "Synthesis and Characterization of Mesoporous Aluminosilicates for Copper Removal from Aqueous Medium," Materials Sciences and Applications, Vol. 3 No. 7, 2012, pp. 485-491. doi: 10.4236/msa.2012.37068.

Conflicts of Interest

The authors declare no conflicts of interest.


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