Department of Chemistry, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran.
J Hazard Mater. 2010 Jun 15;178(1-3):349-55. doi: 10.1016/j.jhazmat.2010.01.086. Epub 2010 Jan 25.
AlMCM-41 was applied for adsorption of methylene blue (MB) and rhodamine B (RB) in single and binary component systems. In the single component systems, AlMCM-41 represents higher adsorption capacity for MB than RB with the maximal adsorption capacity of 2.08x10(-4) and 8.74x10(-5)mol/g at 25 degrees C for MB and RB, respectively. In the binary component system, MB and RB exhibit competitive adsorption onto the adsorbent. The adsorption is approximately reduced to 94 and 79% of single component adsorption systems for MB and RB (initial concentration of 8x10(-6)M) at 25 degrees C. In single and binary component systems, kinetic and adsorption isotherm studies demonstrate that the data are following pseudo-second-order kinetic model and Langmuir isotherm. Effect of solution pH on the adsorption in single and binary component systems was studied and the results were described by electrostatic interactions.
介孔材料 MCM-41 对亚甲基蓝（MB）和罗丹明 B（RB）在单组分和双组分体系中的吸附行为进行了研究。在单组分体系中，MCM-41 对 MB 的吸附容量大于 RB，最大吸附容量分别为 2.08x10(-4) 和 8.74x10(-5)mol/g，吸附温度为 25°C。在双组分体系中，MB 和 RB 对吸附剂表现出竞争吸附。在 25°C 时，MB 和 RB（初始浓度为 8x10(-6)M）的吸附量分别约为单组分吸附体系的 94%和 79%。在单组分和双组分体系中，动力学和吸附等温线研究表明，数据遵循拟二级动力学模型和朗缪尔等温线。研究了溶液 pH 值对单组分和双组分体系中吸附的影响，结果可用静电相互作用来描述。
