Abstract

The sorption activity of ethylcellulose–bentonite composites toward methylene blue has been studied. It has been determined that the degree of recovery of the dye with the composites increases by a factor of 2.5 as compared to unmodified polymer along with a significant decrease in the equilibrium time. Quantitative characteristics of sorption, such as modulus, filler content in composite, and initial concentration of dye in solution, have been determined under various conditions. It has been determined that the kinetics of the sorption process is described by the pseudo-first-order equation, while the isotherm fulfills the Langmuir law. Using IR spectroscopy, hydrogen-bond formation between oxygen-containing groups of the composite and heteroatoms of the dye has been shown.

中文翻译：

---

亚乙基蓝在乙基纤维素-膨润土薄膜复合材料上的吸附

摘要

研究了乙基纤维素-膨润土复合材料对亚甲基蓝的吸附活性。已经确定，与未改性的聚合物相比，具有复合物的染料的回收率增加了2.5倍，并且平衡时间显着减少。已经在各种条件下确定了吸附的定量特征，例如模量，复合物中填料的含量以及溶液中染料的初始浓度。已经确定，吸附过程的动力学由拟一阶方程描述，而等温线满足朗缪尔定律。使用IR光谱法，已经显示出复合物的含氧基团与染料的杂原子之间的氢键形成。