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凹凸棒石/炭对低浓度亚甲基蓝的吸附性能

ISSN号：1007-8827
期刊名称：《新型炭材料》
时间：0
分类：TQ127.11[化学工程—无机化工]
作者机构：[1]合肥工业大学化学与化工学院,安徽合肥230009, [2]合肥工业大学材料科学与工程学院,安徽合肥230009
相关基金：国家自然科学基金（51002042,40902020,51072044）;安徽省教育厅重点项目（2011AJZR0080）;中央高校基本科研业务费专项资金资助（2013HGQC0015）.

作者：吴雪平[1], 徐艳青[1], 张先龙[1], 吴玉程[2], 高鹏[1]

关键词：凹凸棒石/炭, 亚甲基蓝, 吸附, 动力学, 热力学!, Palygorskite/carbon, Methylene blue, Adsorption, Kinetics, Isotherm

中文摘要：

通过水热处理凹凸棒石和纤维素获得凹凸棒石/炭纳米复合材料,研究该复合材料对亚甲基蓝的吸附性能。考察吸附条件对吸附行为的影响,以及吸附动力学和热力学研究。亚甲基蓝的吸附行为符合二级吸附速率方程,吸附等温方程符合Langmuir方程。吸附热力学参数的计算值表明,亚甲基蓝在该复合材料上的吸附是自发、吸热的过程。

英文摘要：

A palygorskite/carbon composite was prepared through hydrothermal treatment of palygorskite and cellulose,and its adsorption behavior for methylene blue（MB） was investigated.The effect of adsorption conditions on the capacity and kinetics was also investigated.The adsorption kinetics of MB onto the composite is best described by a pseudo-second-order equation.The adsorption isotherms conform to the Langmuir isothermal adsorption equation.The adsorption thermodynamic parameters calculated from the isotherms indicate that the adsorption of MB on the composite is endothermic.

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