Removal of methylene blue from aqueous solution with self-assembled cylindrical graphene-carbon nanotube hybrid
Removal of methylene blue from aqueous solution with self-assembled cylindrical graphene-carbon nanotube hybrid
复制标题
自组装圆柱形石墨烯-碳纳米管杂化材料去除水溶液中的亚甲基蓝
DOI：
10.1016/j.cej.2012.03.056
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发表时间：
2012-06-01
影响因子：
15.1
通讯作者：
Jiang, Jing
中科院分区：
文献类型：
--
作者：
Ai, Lunhong;Jiang, Jing
在这项研究中，我们报告了从水溶液中有效地去除有机染料与自组装的圆柱形石墨烯-碳纳米管（G-CNT）的混合物，可以直接通过一个简单的一步水热过程制造。该杂化材料对亚甲基蓝（MB）的最大吸附容量为81.97 mg g（-1），表现出良好的去除性能。在初始MB浓度为10 mg L-1时，去除效率为97%。吸附动力学符合准二级动力学模型，Freundlich吸附等温式适用于描述平衡吸附过程。本研究表明，碳基杂化材料可以作为一种新型的吸附剂，用于去除水溶液中的有机染料污染物。(C)2012爱思唯尔有限公司版权所有。
In this study, we report the efficient removal of organic dye from aqueous solution with a self-assembled cylindrical graphene-carbon nanotube (G-CNT) hybrid which can be directly fabricated by a simple one-step hydrothermal process. The hybrid showed good performance for the removal of methylene blue (MB) from aqueous solution with a maximum adsorption capacity of 81.97 mg g(-1). The removal efficiency was found to be 97% at the initial MB concentration of 10 mg L-1. The kinetics of adsorption followed the pseudo-second-order kinetic model, while the Freundlich adsorption isotherm was applicable to describe the equilibrium adsorption process. This study suggests that carbon-based hybrid could be explored as a new adsorbent for removing organic dye pollutants from aqueous solution. (C) 2012 Elsevier B.V. All rights reserved.