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Three-dimensional graphene aerogels-mesoporous silica frameworks for superior adsorption capability of phenols

机译：三维石墨烯气凝胶-介孔二氧化硅骨架，对苯酚具有优异的吸附能力

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摘要

Three-dimensional (3D) graphene aerogels-mesoporous silica (GAS-MS) frameworks were successfully fabricated. The interconnected macropores were obtained from hydrothermally assembled 3D GAs, while the mesopores were generated by the silica uniformly grown on the surface of graphene. The resulting GAs-MS exhibited narrow mesopore size distribution (1.87 nm), high surface area (1000.80 m(2) g(-1)), and hierarchical macro- and mesoporous structures. These wonderful features made GM-MS as a promising adsorbent for the removal of hazardous phenols from wastewater. The adsorption study implied that the novel materials exhibited superior adsorption capacity of phenols to such as phenol, catechol, resorcinol and hydroquinone, with removal efficiencies of 68.6%, 86.6%, 91.1% and 94.7%, respectively. (C) 2015 Elsevier B.V. All rights reserved.
机译：成功地制造了三维（3D）石墨烯气凝胶-中孔二氧化硅（GAS-MS）骨架。相互连接的大孔是从水热组装的3D GA中获得的，而中孔是由均匀生长在石墨烯表面的二氧化硅产生的。生成的GAs-MS表现出窄的中孔尺寸分布（1.87 nm），高表面积（1000.80 m（2）g（-1））以及分层的大孔和中孔结构。这些出色的功能使GM-MS成为从废水中去除有害酚的有前途的吸附剂。吸附研究表明，新型材料对苯酚，邻苯二酚，间苯二酚和对苯二酚表现出较高的苯酚吸附能力，去除效率分别为68.6％，86.6％，91.1％和94.7％。 （C）2015 Elsevier B.V.保留所有权利。

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