高分子复合材料——去除活性染料的潜在生物材料

P. N. Palanisamy, A. Agalya, P. Sivakumar
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引用次数: 30

摘要

以天然木材锯末(取自大胡木)和聚吡咯基体相为增强材料,制备了聚吡咯锯末复合材料。研究了聚吡咯锯末复合材料对活性染料的吸附行为。通过改变溶液pH、初始染料浓度、接触时间和温度进行了批量吸附研究。动力学研究表明,PPC对活性红的吸附最符合离子交换吸附的准二级动力学。利用Freundlich和Langmuir等温线模型对平衡数据进行分析。平衡等温线数据与Langmuir等温线模型拟合良好。根据Langmuir模型计算,在303 K下,活性红的最大单层吸附量为204.08 mg/g。热力学参数表明,在弱维德壁引力作用下,离子交换吸附具有自发吸热性质。聚吡咯复合材料吸附活性物的活化能为11.6387 kJ/mol,等容吸附热为48.5454 kJ/mol,支持染料分子与PPC之间引力较弱的离子交换吸附过程。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Polymer Composite—A Potential Biomaterial for the Removal of Reactive Dye
Poly Pyrrle saw dust composite was prepared by reinforcement of natural wood saw dust (obtained from Euphorbia Tirucalli L wood) and Poly Pyrrole matrix phase. The present study investigates the adsorption behaviour of Poly Pyrrole Saw dust Composite towards reactive dye. The batch adsorption studies were carried out by varying solution pH, initial dye concentration, contact time and temperature. The kinetic study showed that adsorption of Reactive Red by PPC was best represented by pseudo-second order kinetics with ion exchange adsorption. The equilibrium data were analyzed by Freundlich and Langmuir isotherm model. The equilibrium isotherm data were fitted well with Langmuir isotherm model. The maximum monolayer adsorption capacities calculated by Langmuir model were 204.08 mg/g for Reactive Red at 303 K. The thermodynamic parameters suggest the spontaneous, endothermic nature of ion exchange adsorption with weak Vader walls force of attraction. Activation energy for the adsorption of Reactive by Poly Pyrrole Composite was 11.6387 kJ/mole, Isosteric Heat of adsorption was 48.5454 kJ/mole also supported the ion exchange adsorption process in which forces of attraction between dye molecules and PPC is weak.
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来源期刊
E-journal of Chemistry
E-journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-
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