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

作　　者：David Alejandro de Haro-Del Río Alberto Florentino Aguilera-Alvarado Irene Cano-Aguilera Merced Martínez-Rosales Stuart Holmes 

机构地区：[1]División de Ciencias Naturales y Exactas, University of Guanajuato, Guanajuato, Mexico [2]School of Chemical Engineering and Analytical Sciences, , University of Manchester, Manchester, UK. [3]School of Chemical Engineering and Analytical Sciences, University of Manchester, Manchester, UK

出　　处：《Materials Sciences and Applications》2012年第7期485-491,共7页材料科学与应用期刊（英文）

摘　　要：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.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.

关 键 词：MESOPOROUS ALUMINOSILICATES SURFACE PROPERTIES COPPER ADSORPTION 

分 类 号：O6[理学—化学]