In this work, we present a solid silicon substrate functionalized with modified β-cyclodextrin monolayers as an optimal surface for organic contaminant uptake. The inclusion and capture of three potential pollutants, 4-chlorophenoxyacetic acid, 4-aminobenzoic acid and phenylethylamine, were studied. 1H-NMR and ROESY studies revealed the complete inclusion and details of the conformational orientation of the three guests in the per-(6-amino-6-deoxy)-β-cyclodextrin matrix, forming three new inclusion complexes that have not yet been reported. Capture assays for the guests were carried out by immersing the substrates in an aqueous pollutant solution and by measuring the UV-vis spectra. This substrate showed a high sorption capacity at equilibrium, between 2.5 × 10-5 and 6.0 × 10-5 mmol/substrate, for the studied pollutants. In addition, this surface can be reused four times with an efficiency equal to the initial use. Therefore, it could be a versatile platform that could be applied for the capture of other organic pollutants from water.

中文翻译：

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用全（6-氨基-6-脱氧）-β-环糊精官能化的表面，可从水中去除潜在的有机污染物。

在这项工作中，我们介绍了用改性的β-环糊精单层功能化作为有机污染物吸收的最佳表面的固体硅基质。研究了三种潜在污染物（4-氯苯氧基乙酸，4-氨基苯甲酸和苯乙胺）的夹杂和捕获。1H-NMR和ROESY研究表明，在（-6-氨基-6-脱氧）-β-环糊精基质中，三个客体的构象取向被完全包含并包含细节，形成了三个尚未被报道的新的包合物。通过将底物浸入污染物水溶液中并测量UV-vis光谱，进行客体的捕获测定。对于研究的污染物，该底物在平衡状态下显示出高吸附容量，介于2.5×10-5和6.0×10-5 mmol /底物之间。此外，该表面可以重复使用四次，效率与最初使用时相同。因此，它可能是一个通用平台，可用于从水中捕获其他有机污染物。