Graphene/CNT hybrid effect on Absorption of Mn2+ by Activated Carbon

A. Ghozatloo, M. Shariaty-Niassar
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引用次数: 4

Abstract

In this paper we tried to improve the adsorption amount by adding graphene/CNT hybrid in the structure of Activated Carbon (AC) for removing manganese ions from aqueous solutions. The bonding of G/CNT hybrid with activated carbon creates a structure that is an excellent absorbent for removing some heavy metal ions. So the Performance increasing of ion adsorption was compared with AC results as the blank adsorbent. The influence of time, pH solution, initial concentration of Mn2+ and temperature investigated as experimental conditions. The maximum adsorption was 89.38% and 96.18% for  AC and AC/G/CNT composite respectively at 30 min, initial concentration of 30 mg/L, pH=4.5 in 15°C for both adsorbents. The results showed that under the same conditions, the presence of G/CNT hybrid in the structure of AC increased the amount of adsorption by 7.5%  
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石墨烯/碳纳米管杂化对活性炭吸附Mn2+的影响
在本文中,我们试图通过在活性炭(AC)的结构中加入石墨烯/碳纳米管杂化物来提高吸附量,以去除水溶液中的锰离子。G/CNT杂化物与活性炭的结合产生了一种结构,这种结构是去除一些重金属离子的极好吸收剂。比较了活性炭作为空白吸附剂对离子吸附性能的提高效果。考察了时间、pH、初始Mn2+浓度和温度等条件对反应的影响。在初始浓度为30 mg/L、pH=4.5、15℃条件下,AC和AC/G/CNT复合材料在30 min时的最大吸附量分别为89.38%和96.18%。结果表明,在相同条件下,活性炭结构中G/CNT杂化物的存在使吸附量提高了7.5%
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