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首页> 外文期刊>Cogent Environmental Science >The removal of rhodamine B dye from aqueous solution using Casuarina equisetifolia needles as adsorbent
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The removal of rhodamine B dye from aqueous solution using Casuarina equisetifolia needles as adsorbent

机译：以木麻黄针为吸附剂从水溶液中去除若丹明B染料

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Casuarina equisetifolia needle (CEN), a lignocellulosic-rich and sustainable material, was used in order to investigate its ability as an adsorbent to remove rhodamine B (RB) dye from aqueous solution. Fourier Transform Infrared spectrometer was used to characterise CEN functional groups and scanning electron microscope was used to study its surface morphology. Batch experiments were done in order to determine the effect of some parameters such as adsorbent dosage, initial pH, contact time, ionic strength, temperature and initial dye concentration. Kinetics, isotherm modelling and thermodynamics studies were also performed in order to explore an insight into the mechanism of the adsorption process. The study showed that the adsorption of RB by CEN is endothermic in nature and follows the pseudo-second-order kinetics model. The Langmuir isotherm model fitted the experimental data best with a maximum adsorption capacity of 82.34?mg?g~(?1).
机译：为了研究木麻黄（Casuarina equisetifolia）针（CEN）是一种富含木质纤维素的可持续材料，旨在研究其作为吸附剂从水溶液中去除若丹明B（RB）染料的能力。用傅立叶变换红外光谱仪表征CEN官能团，并用扫描电子显微镜研究其表面形态。为了确定某些参数（例如吸附剂剂量，初始pH，接触时间，离子强度，温度和初始染料浓度）的影响，进行了批量实验。还进行了动力学，等温线建模和热力学研究，以探索对吸附过程机理的认识。研究表明，CEN对RB的吸附本质上是吸热的，并且遵循伪二级动力学模型。 Langmuir等温线模型最适合实验数据，最大吸附容量为82.34？mg？g〜（？1）。

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