The present study investigates the removal of Erythrosine B (EB), a neurotoxin and carcinogenic dye from aqueous system using Prosopisspicigera L. wood (PsLw) carbon-iron oxide composite. The adsorbent is well characterized by Fourier Transform Infra Red spectroscopy (FTIR), Scanning Electron Microscope (SEM) for surface morphology, Brunauer-Emmett-Teller nitrogen adsorption method (BET)/methylene blue method for surface area determination and potentiometric methods for surface charge (pHzpc) determination. The removal capacity of the adsorbent has been evaluated by batch method under varying pH, contact time, adsorbate initial concentrations, and in the presence of other ions. The Langmuir maximum adsorption capacity is found to be 487.8 mg/g at pH = 2.0 for an initial concentration of 250 mg/L. The adsorption follows pseudo second order kinetics and fits to Langmuir isotherm. The adsorption is thermodynamically spontaneous and exothermic in nature. Pore diffusion and mass transfer studies are performed. Column mode analysis is applied in the process for industrial applications.

中文翻译：

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用 Prosopisspicigera L. 木材碳-铁氧化物复合物去除赤藓红 B

本研究研究了使用 Prosopisspicigera L. wood (PsLw) 碳-铁氧化物复合材料从水系统中去除赤藓红 B (EB)，这是一种神经毒素和致癌染料。吸附剂通过傅里叶变换红外光谱 (FTIR)、扫描电子显微镜 (SEM) 用于表面形态、Brunauer-Emmett-Teller 氮吸附法 (BET)/亚甲基蓝法用于表面积测定和电位法用于表面电荷进行了很好的表征(pHzpc) 测定。在不同的 pH 值、接触时间、吸附物初始浓度和存在其他离子的情况下，已通过批处理方法评估了吸附剂的去除能力。对于 250 mg/L 的初始浓度，在 pH = 2.0 时发现 Langmuir 最大吸附容量为 487.8 mg/g。吸附遵循准二级动力学并符合 Langmuir 等温线。吸附本质上是热力学自发的和放热的。进行了孔扩散和传质研究。列模式分析应用于工业应用的过程。