Preparation of hydrophilic mesoporous carbon and its application in dye adsorption

Preparation of hydrophilic mesoporous carbon and its application in dye adsorption
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亲水介孔碳的制备及其在染料吸附中的应用

DOI:
10.1016/j.matlet.2011.05.014
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发表时间:
2011-08
期刊:
影响因子:
3
通讯作者:
Chen, Chen
Chen, Chen
中科院分区:
材料科学3区
文献类型:
--
作者:
Dong, Xiaoping;Fu, Jie;Xiong, Xingxing;Chen, Chen

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在室温下,通过介孔炭(CMK-3)与酸性高锰酸钾(KMnO 4)溶液的快速氧化还原反应制备了亲水性介孔炭(H-MS)。所得材料通过含氧基团的改性,使其表面具有亲水性,同时保留了有序的介孔结构。H-MS和CMK-3的孔径没有明显差异,比表面积和孔体积略有下降,这是由于碳表面含氧基团的改性。H-MC对水溶液中染料的吸附性能有所改善,平衡吸附量比CMK-3高约3倍。
A hydrophilic mesoporous carbon (H-MS) has been prepared by a rapid redox reaction between mesoporous carbon (CMK-3) and an acidic potassium permanganate (KMnO4) solution at room temperature. The obtained material has a hydrophilic surface by the modification of oxygen-containing groups, and meanwhile retains the ordered mesoporous structure. No obvious difference of pore size between H-MS and CMK-3, and the slight decrease of surface area and pore volume is due to the modification of oxygen-containing groups on the carbon surface. An improved property for adsorbing dyes in aqueous solution was observed in H-MC, and the adsorption amount at equilibrium is ~ 3 times higher than that of CMK-3.
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