Two luminescent phosphonate metal-organic framework as highly efficient and sensitive sensors for the detections of tetracycline antibiotic in aqueous system
作者:Fangyu Sun、Hui-Hui Xie、Xin Liu、Siyu Pang、Si-Fu Tang、Xiuling Xu
DOI:10.1016/j.jssc.2023.123942
日期:2023.6
effects of tetracycline (TC), chlortetracycline (CTC) and oxytetracyline (OTC) residues on human health and ecosystem have attracted much attention. Herein, two novel luminescent phosphonate metal-organic frameworks based on Zn and Cd were prepared by hydrothermal method, named MOF-1 (2[Zn2‧L·(H2O)2]) and MOF-2 (2[Cd(H2L)‧(H2O)2]), respectively. Two MOFs can specifically recognize three antibiotics and quench
四环素(TC)、金霉素(CTC)和土霉素(OTC)残留对人类健康和生态系统的不利影响备受关注。在此,采用水热法制备了两种基于 Zn 和 Cd 的新型发光膦酸盐金属有机骨架,命名为 MOF-1 (2[Zn 2 ‧L·(H 2 O) 2 ]) 和 MOF- 2 ( 2 [ Cd ( H 2 L)‧(H 2 O) 2]), 分别。两个 MOFs 可以特异性识别三种抗生素并通过内部过滤效应 (IFE) 淬灭荧光。此外,在离子和其他抗生素存在的情况下,MOFs仍表现出良好的选择性和较强的抗干扰性能。值得注意的是,MOF-2 对 TC、CTC 和 OTC 的检测限分别为 4.9、1.21 和 2.17 nM。这些优异的传感性能,加上易于制备、良好的稳定性和可行性,使得 MOFs 具有检测水溶液中四环素类抗生素的巨大潜力。