基于金属离子交换的有机金属凝胶用于检测抗生素与硝基芳香族化合物

废水中有机化合物的快速检测一直是一个重要的问题。采用离子交换法制备了具有荧光特性的铽基金属有机凝胶MOG（Tb）。研究表明，即使存在其他有机化合物，微量的呋喃唑酮（FZD）、甲硝唑（MDZ）、2，4-二硝基甲苯（2，4-DNT）和4-硝基苯酚（4-NP）也能有效猝灭MOG（Tb）的荧光发射，证明MOG（Tb）干凝胶作为一种化学传感器可以有效检测抗生素（FZD、MDZ）和硝基芳香族化合物（2，4-DNT、4-NP）。有趣的是，青霉素钾（PCLP）却能增强MOG（Tb）的荧光。此外，还进行了MOG（Tb）干凝胶的可回收性和水稳定性试验，并得到了较为满意的结果。

Organometallic Gels Based on Metal Ion Exchange for the Detection of Antibiotics and Nitroaromatic Compounds

Rapid detection of organic compounds in wastewater has always been an important issue. Fluorescent Tb-based metal- organic gel MOG(Tb) was prepared by the metal ion exchange method. The studies have shown that trace amounts of furazolidone (FZD), metronidazole (MDZ), 2, 4-dinitrotoluene (2, 4-DNT), and 4-nitrophenol (4-NP) could effectively quench the fluorescence emission of MOG(Tb) even in the presence of other analytes, demonstrat-ing that the MOG(Tb) xerogels could effectively detect antibiotics (FZD, MDZ) and nitroaromatic compounds (2, 4-DNT, 4-NP). However, penicillin G potassium salt (PCLP) could enhance the fluorescence of MOG(Tb). In addi-tion, the recyclability and water stability tests of the MOG(Tb) xerogels were also carried out, and satisfactory results were obtained.