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首页> 外文期刊>Journal of Polymers and the Environment >An Eco-friendly Porous Poly(imide-ether)s for the Efficient Removal of Methylene Blue: Adsorption Kinetics, Isotherm, Thermodynamics and Reuse Performances
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An Eco-friendly Porous Poly(imide-ether)s for the Efficient Removal of Methylene Blue: Adsorption Kinetics, Isotherm, Thermodynamics and Reuse Performances

机译：一种生态友好的多孔聚（酰亚胺 - 醚），用于高效除去亚甲蓝：吸附动力学，等温，热力学和再利用性能

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Poly(imide-ether)s (PIEs), which is porous in nature, was synthesized using aromatic diamines and dianhydrides via the solution polycondenzation reaction. In the process, PIEs was used as an adsorbent for the removal of basic dye [Methylene blue (MB)] from the aqueous solution. The structure and the thermal stability of PIEs were characterized by FT-IR, H-1-NMR, XRD and TG analysis, and the adsorption behaviour of the PIEs was confirmed using UV/Visible, FT-IR and SEM with EDX analysis. Batch adsorption experiments were carried out and their parameters (pH 6.95), initial MB concentration (200mg/L), adsorbent dosage (50mg), contact time (120min) and temperature (28 degrees C) were optimized. The batch adsorption experimental data of the effect of contact time, initial MB concentration and temperature were evaluated using the adsorption kinetics (Pseudo-first order, Pseudo-second order, Elovich and Intra-particle diffusion kinetic), isotherm (Langmuir, Freundlich, Redlich-Peterson and Sips isotherms) and thermodynamic models respectively. In the study, adsorption of MB onto PIEs followed Pseudo-second kinetics and found to be the best fitting model based on the obtained experimental data. The homogeneity and heterogeneity surface nature of PIEs were elucidated with two and three isotherm parameters respectively. The adsorption thermodynamic study indicates that the adsorption of MB onto PIEs was endothermic and spontaneous in nature. The adsorbed PIEs solid waste was utilized to prepare the polymer composite, and its property was characterized.[GRAPHICS].
机译：通过溶液聚乙烯反应使用芳族二胺和二酐，合成多孔的聚（酰亚胺 - 醚）S（馅饼）S（馅饼）。在该过程中，用作从水溶液中除去碱性染料[亚甲基蓝色（MB）]的吸附剂。 Pie的结构和热稳定性以FT-IR，H-1-NMR，XRD和Tg分析为特征，并且使用UV /可见的FT-IR和SEM通过EDX分析确认了饼的吸附行为。进行批量吸附实验及其参数（pH6.95），初始MB浓度（200mg / L），吸附剂剂量（50mg），接触时间（120mIn）和温度（28℃）。使用吸附动力学评估接触时间，初始MB浓度和温度的批量吸附实验数据（伪第一顺序，伪二次阶，ELOVICH和粒子扩散动力学），等温线（Langmuir，Freundlich，Redlich -Peterson和Sips等温机器和热力学模型。在该研究中，将MB的吸附到馅饼上遵循伪第二动力学，并发现基于所获得的实验数据是最佳的拟合模型。分别用两个和三个等温参数阐明了饼的均匀性和异质性表面性质。吸附热力学研究表明，Mb对馅饼的吸附是吸热和自发性的。吸附的凹凸固体废物用来制备聚合物复合物，其性质的特征在于[图形]。

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