Abstract

Almond resin (a natural polymer) was incorporated with an amine solvent (Aliquat-336) by wet impregnation method in an ultrasonicator. The surface morphology, functional groups, thermal stability, and surface area were determined. The point of zero-charge on the surface was also found out. The performance of the impregnated resin was analyzed by treating Bisphenol-A (BPA) and Biochanin-A (BA) containing aqueous solutions by varying experimental parameters such as dosage amount, contact time, temperature, initial concentrations of BPA and BA, and solution pH. Pseudo-second-order kinetic model and Freundlich isotherm rendered the best fit for BPA and BA adsorption data. A double layer thermodynamic adsorption model was applied to estimate the adsorption energy and positional entropy of the process.

摘要

在超声发生器中通过湿浸渍法将杏仁树脂（一种天然聚合物）与胺溶剂 (Aliquat-336) 结合。测定了表面形态、官能团、热稳定性和表面积。还发现了表面上的零电荷点。通过改变剂量、接触时间、温度、BPA 和 BA 的初始浓度以及溶液 pH 值等实验参数，处理含双酚 A (BPA) 和生物素 A (BA) 的水溶液，分析浸渍树脂的性能. 伪二级动力学模型和 Freundlich 等温线最适合 BPA 和 BA 吸附数据。应用双层热力学吸附模型来估计该过程的吸附能和位置熵。