East China Woody Fragrance and Flavor Engineering Research Center of NF&GA, College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China.
Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, China.
Molecules. 2023 Mar 7;28(6):2437. doi: 10.3390/molecules28062437.
Acetaminophen (AC) is one of the most common over-the-counter drugs, and its pollutant in groundwater has attracted more attention due to its serious risk to human health. Currently, the research on AC is mainly focused on its detection, but few are concerned about its removal. In this work, for the first time, nitrogen-doped Soulangeana sepals derived biochar/β-cyclodextrin-Metal-organic frameworks (N-SC/β-CD-MOFs) composite was proposed for the simultaneous efficient removal and detection of AC. N-SC/β-CD-MOFs combined the properties of host-guest recognition of β-CD-MOFs and porous structure, high porosity, and large surface area of N-SC. Their synergies endowed N-SC/β-CD-MOFs with a high adsorption capacity toward AC, which was up to 66.43 mg/g. The adsorption type of AC on the surface of N-SC/β-CD-MOFs conformed to the Langmuir adsorption model, and the study of the adsorption mechanism showed that AC adsorption on N-SC was mainly achieved through hydrogen bonding. In addition, the high conductivity, large specific surface area and abundant active sites of N-SC/β-CD-MOFs were of great significance to the high-performance detection of AC. Accordingly, the sensor prepared with N-SC/β-CD-MOFs presented a wide linear range (1.0-30.0 μM) and a low limit of detection of 0.3 nM (S/N = 3). These excellent performances demonstrate that N-SC/β-CD-MOFs could act as an efficient dual-functional material for the detection and removal of AC.
对乙酰氨基酚（AC）是最常见的非处方药物之一，由于其对人类健康的严重风险，其在地下水中的污染物引起了更多的关注。目前，对 AC 的研究主要集中在其检测上，但很少有人关注其去除。在这项工作中，首次提出了氮掺杂 Soulangeana 萼片衍生的生物炭/β-环糊精-金属有机骨架（N-SC/β-CD-MOFs）复合材料，用于同时高效去除和检测 AC。N-SC/β-CD-MOFs 结合了β-CD-MOFs 的主体识别性能和 N-SC 的多孔结构、高孔隙率和大表面积。它们的协同作用赋予了 N-SC/β-CD-MOFs 对 AC 的高吸附能力，高达 66.43mg/g。AC 在 N-SC/β-CD-MOFs 表面的吸附类型符合朗缪尔吸附模型，吸附机制的研究表明，AC 在 N-SC 上的吸附主要是通过氢键实现的。此外，N-SC/β-CD-MOFs 的高导电性、大比表面积和丰富的活性位点对 AC 的高性能检测具有重要意义。因此，用 N-SC/β-CD-MOFs 制备的传感器呈现出宽的线性范围（1.0-30.0 μM）和低的检测限为 0.3 nM（S/N = 3）。这些优异的性能表明，N-SC/β-CD-MOFs 可以作为一种有效的双功能材料，用于 AC 的检测和去除。
