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首页> 外文期刊>Journal of Polymers and the Environment >Modified Sugarcane Bagasse with Tartaric Acid for Removal of Diazonium Blue from Aqueous Solutions
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Modified Sugarcane Bagasse with Tartaric Acid for Removal of Diazonium Blue from Aqueous Solutions

机译：酒石酸改性甘蔗渣用于水溶液中重氮蓝的去除

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摘要

The present study concerns with exploring the possibility of using of tartaric acid pretreated sugarcane bagasse (SCB) for removing diazonium blue (DB) from aqueous solutions. The effect of different factors on the efficiency of the adsorbent for the DB dye removal was investigated, including initial dye concentration, contact time, SCB dosage and SCB particle size. Langmuir, Freundlich, Tempkin and D–R isothermal models have been employed to analyze the adsorption equilibrium data. It was found that the adsorption of the dye fits well with the D–R model. The adsorption kinetics was also done applying four kinetic models. The regression equation coefficients refer to fitting the data to the second-order kinetic equation for removal of the DB dye. It is probable that the rate limiting step is a chemical adsorption between the adsorbent and the dye. This chemisorption process is further confirmed from the energy value of 15.1 kJ mol_(−1)deduced from the D–R isotherm.
机译：本研究涉及探索使用酒石酸预处理的甘蔗渣（SCB）从水溶液中去除重氮蓝（DB）的可能性。研究了不同因素对吸附剂去除DB染料的效率的影响，包括初始染料浓度，接触时间，SCB剂量和SCB粒径。 Langmuir，Freundlich，Tempkin和D–R等温模型已用于分析吸附平衡数据。发现染料的吸附与D–R模型非常吻合。还使用四个动力学模型完成了吸附动力学。回归方程系数是指将数据拟合为二阶动力学方程，以去除DB染料。限速步骤很可能是吸附剂和染料之间的化学吸附。从D–R等温线推导出的15.1 kJ mol _（-1）的能量值进一步证实了这种化学吸附过程。

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