Graphene/graphene nanoribbons hybrid aerogel (GA/GNRs) was prepared via a hydrothermal process by using graphene oxide as precursor, and the graphene oxide nanoribbons unzipped from multi-walled carbon nanotubes were compound together. Various techniques were used to investigate the morphology, surface properties and structure of aerogel samples. Besides, the adsorption properties of the hybrid aerogel for the removal of U(VI) were further studied. The results showed that GNRs was grafted on the surface of graphene, and the specific surface area and porous pores structure were enhanced. The adsorption process of hybrid aerogel for U(VI) was pH-dependent, rapid, spontaneous and endothermic, and the maximum adsorption capacity for U(VI) was calculated to be 327.8 mg/g, which is expected to separate uranium from wastewater.

中文翻译：

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石墨烯/石墨烯纳米带杂化气凝胶的制备及其在水溶液中脱铀的应用

以氧化石墨烯为前驱体，通过水热法制备了石墨烯/石墨烯纳米带混合气凝胶（GA/GNRs），并将从多壁碳纳米管中解压出来的氧化石墨烯纳米带复合在一起。使用各种技术来研究气凝胶样品的形态、表面性质和结构。此外，进一步研究了混合气凝胶去除 U(VI) 的吸附性能。结果表明，GNRs接枝在石墨烯表面，比表面积和多孔孔结构得到增强。混合气凝胶对 U(VI) 的吸附过程是 pH 依赖的、快速的、自发的和吸热的，对 U(VI) 的最大吸附容量计算为 327.8 mg/g，有望将铀从废水中分离出来。