摘要
      为了同时去除不同类型的水污染物，采用一步插层交联聚合新工艺合成了多层乙醛酸功能化三联烯纳米片（G-TCNS）。在本研究中，研究了染料亚甲基蓝（MB）和罗丹明B（RhB）、抗生素庆大霉素（GM）和氧氟沙星（OFL）以及抗生素抗性基因（ARGs）的快速吸附，以及从水中去除三种新出现的抗生素抗性细菌（ARB）。在pH 8和295 K下，使用20 mg L−1的G-TCNS剂量，在7分钟内实现了99%的污染物去除效率。G-TCNS对不同污染物的吸附容量（Qe）在450–556 mg G−1范围内。G-TCNS由于其多层微孔结构和高表面积而表现出高吸附能力，并且由于其优异的水选择性而改善了水净化。NRs还显示出对107CFU mL−1 ARB的高效细菌去除和灭活。与（未功能化的）三联烯纳米片（TCNS）和其他市售抗生素相比，它们作为抗菌剂更有效。研究结果还表明，G-TCNS是一种高效、高度可回收和环保的吸附剂，可同时去除水中的各种污染物。
Abstract
Multi-layered glyoxylic-functionalized triptycene nanoswabs (G-TCNS) were synthesized using a novel one-step intercalation cross-linked polymerization process for simultaneous removal of different types of water contaminants. In this study, expeditious adsorption of the dyes methylene blue (MB) and rhodamine B (RhB), the antibiotics gentamicin (GM) and ofloxacin (OFL), and antibiotic-resistant genes (ARGs), and the removal of three types of emerging antibiotic-resistant bacteria (ARB) from water were studied. A contaminant removal efficiency of 99 % was achieved within 7 min using G-TCNS dosage of 20  mg L−1 at pH 8 and 295 K. The adsorption capacities (Qe) of G-TCNS for the different contaminants were in the range 450–556 mg g−1. The G-TCNS exhibited high adsorption capacities as a result of their multi-layered micro-porous structure and high surface area, and improved water purification due to their excellent water selectivity. The NRs also showed high efficiencies of bacteria removal and inactivation against 107 CFU mL−1 of ARB. They were more effective as an antibacterial agent compared to (unfunctionalized) triptycene nanoswabs (TCNS) and other commercially available antibiotics. The results also revealed that G-TCNS is an efficient, highly recyclable, and eco-friendly adsorbent for the simultaneous removal of various contaminants from water.

https://www.sciencedirect.com/science/article/abs/pii/S1383586622023875