木质素基水凝胶的制备及其吸附性能数据集

以木质素为原料，制备了LN-NH-SA水凝胶和CKLA水凝胶，并利用场发射扫描电子显微镜、热重分析、傅立叶变换红外光谱、N2吸附-解吸等对其结构和性能就行了表征。N-NH-SA水凝胶对亚甲基蓝有更好的吸附效率，最大吸附容量为388.81 mg/g。吸附过程符合伪二阶吸附动力学模型，并与Freundlich等温线方程相吻合。LN-NH-SA水凝胶在5次循环后仍能有87.64%的去除率。研究了CKLA水凝胶对刚果红具有较好的吸附效果，且经过五个吸附周期后，水凝胶对刚果红的吸附效率仍达到80%以上。

Using lignin as the raw material, LN-NH-SA hydrogel and CKLA hydrogel were prepared. Their structures and properties were characterized by field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), N₂ adsorption-desorption, and other characterization techniques. LN-NH-SA hydrogel exhibited better adsorption efficiency towards methylene blue, with a maximum adsorption capacity of 388.81 mg/g. The adsorption process conforms to the pseudo-second-order adsorption kinetic model and fits the Freundlich isotherm equation. LN-NH-SA hydrogel still maintained a removal rate of 87.64% after 5 adsorption cycles. CKLA hydrogel was found to have good adsorption performance towards congo red, and after 5 adsorption cycles, its adsorption efficiency towards congo red still remained above 80%.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于木质素基水凝胶的制备、表征及其对染料的吸附性能研究，具体包括LN-NH-SA和CKLA两种水凝胶。数据集展示了LN-NH-SA水凝胶对亚甲基蓝的高吸附容量（388.81 mg/g）和良好循环稳定性（5次循环后去除率87.64%），同时CKLA水凝胶对刚果红也表现出有效吸附。数据来源于院基金项目，通过实验获得，涉及林学领域，旨在为染料污染治理提供环保型吸附材料参考。