The environmental applications of graphene oxide and β-cyclodextrin (β-CD) have attracted great attention since their first discovery. Novel nanocomposites were successfully prepared by using an esterification reaction between β-cyclodextrin/γ-(2,3-epoxypropoxy) propyl trimethoxysilane grafted graphene oxide (β-CD/GPTMS/GO). The β-CD/GPTMS/GO nanocomposites were used to remove the Cu2+ from aqueous solutions. The characteristics of β-CD/GPTMS/GO were detected by scanning electron microscopy (SEM), Fourier transform infrared, X-ray diffraction (XRD), thermogravimetric analysis (TG) and energy dispersive X-ray (EDX). The dispersibility of graphene oxide was excellent due to the addition of β-CD. The adsorption isotherms data obtained at the optimum pH 7 were fitted by Langmuir isotherm model. The excellent adsorption properties of β-CD/GPTMS/GO for Cu2+ ions could be attributed to the apolar cavity structure of β-CD, the high surface area and abundant functional groups on the surface of GO. The adsorption patterns of β-CD/GPTMS/GO were electrostatic attraction, formation of host-guest inclusion complexes and the ion exchange adsorption. The efficient adsorption of β-CD/GPTMS/GO for Cu2+ ions suggested that these novel nanocomposites may be ideal candidates for removing other cation pollutants from waste water.

中文翻译：

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将β-环糊精/γ-（2,3-环氧丙氧基）丙基三甲氧基硅烷附着到氧化石墨烯上及其在除铜中的应用。

自首次发现以来，氧化石墨烯和β-环糊精（β-CD）在环境中的应用引起了极大的关注。利用β-环糊精/γ-（2,3-环氧丙氧基）丙基三甲氧基硅烷接枝的氧化石墨烯（β-CD/ GPTMS / GO）之间的酯化反应成功制备了新型纳米复合材料。β-CD/ GPTMS / GO纳米复合材料用于从水溶液中去除Cu2 +。β-CD/ GPTMS / GO的特征通过扫描电子显微镜（SEM），傅立叶变换红外光谱，X射线衍射（XRD），热重分析（TG）和能量色散X射线（EDX）进行检测。由于添加了β-CD，因此氧化石墨烯的分散性优异。用Langmuir等温线模型拟合在最佳pH 7下获得的吸附等温线数据。β-CD/ GPTMS / GO对Cu2 +离子的优异吸附性能可以归因于β-CD的非极性腔结构，高表面积和GO表面的丰富官能团。β-CD/ GPTMS / GO的吸附方式为静电吸引，主客体包合物的形成和离子交换吸附。β-CD/ GPTMS / GO对Cu2 +离子的有效吸附表明，这些新型纳米复合材料可能是从废水中去除其他阳离子污染物的理想候选物。