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首页> 外文期刊>Asian journal of research in chemistry >Biosorption of an Acidic Dye, Alizarin Red S, Onto Biosorbent of Mustard husk: Kinetic, Equilibrium Modeling and Spectroscopic Analysis
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Biosorption of an Acidic Dye, Alizarin Red S, Onto Biosorbent of Mustard husk: Kinetic, Equilibrium Modeling and Spectroscopic Analysis

机译：芥菜皮生物吸附剂上酸性染料茜素红S的生物吸附：动力学，平衡建模和光谱分析

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摘要

Adsorption of an anthraquinone dye Alizarin Red S onto biosorbent of mustard husk has been studied on aqueous solutions. The batch adsorption experiments were conducted using simulated aqueous solutions and the effects of initial dye concentration, pH of solution, contact time and temperature were investigated. The prepared biosorbent was characterized using FTIR, SEM, elemental analysis and through the determination of pH_(zpc). The equilibrium data were modeled with Langmuir and Freundlich isotherms. The rates of adsorption were found to confirm to the pseudo-second-order kinetics with good correlations (R~2>0.99). The thermodynamic studies showed that the Alizarin Red S-biosorbent system is spontaneous, exothermic and favourable in nature.
机译：在水溶液上已研究了蒽醌染料茜素红S在芥菜壳生物吸附剂上的吸附。使用模拟水溶液进行间歇吸附实验，并研究了初始染料浓度，溶液pH，接触时间和温度的影响。使用FTIR，SEM，元素分析和pH_（zpc）的测定对制备的生物吸附剂进行表征。用Langmuir和Freundlich等温线对平衡数据进行建模。发现吸附速率证实了假二阶动力学具有良好的相关性（R〜2> 0.99）。热力学研究表明，茜素红S-生物吸附剂系统自发，放热且性质良好。

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