A reported water-stable Zn-MOF ([Zn(L)2(bpa)(H2O)2]·2H2O, H2L = 5-(2-cyanophenoxy) isophthalic acid has been prepared via a low-cost, general and efficient hydrothermal method. It is worth noting the structural features of Zn-MOF which exhibit the unsaturated metal site and the main non-covalent interactions including O⋯H, N⋯H and π-π stacking interactions, which lead to strong antibacterial and good tetracycline degradation ability. The average diameter of the Zn-MOF inhibition zone against Escherichia coli and Staphylococcus aureus was 12.22 mm and 10.10 mm, respectively. Further, the water-stable Zn-MOF can be employed as the effective photocatalyst for the photodegradation of tetracycline, achieving results of 67% within 50 min, and it has good cyclic stability. In addition, the photodegradation mechanism was studied using UV-vis diffuse reflection spectroscopy (UV-VIS DRS) and valence-band X-ray photoelectron spectroscopy (VB-XPS) combined with the ESR profile of Zn-MOF, which suggest that ·O2− is the main active species responsible for tetracycline photodegradation. Also, the photoelectric measurement results show that Zn-MOF has a good photocurrent generation performance under light. This provides us with a new perspective to investigate Zn-MOF materials as a suitable multifunctional platform for future environmental improvement applications.

中文翻译：

---

高度水稳定性锌基金属有机框架：抗菌、光催化降解和光电响应

通过低成本、通用、高效的水热法制备了水稳定的 Zn-MOF ([Zn(L)2(bpa)(H2O)2]·2H2O, H2L = 5-(2-cyanophenoxy) 间苯二甲酸值得注意的是Zn-MOF的结构特征，其具有不饱和金属位点和主要的非共价相互作用，包括O⋯H、N⋯H和π-π堆积相互作用，从而具有很强的抗菌性和良好的四环素降解性Zn-MOF对大肠杆菌和金黄色葡萄球菌的平均抑菌圈直径分别为12.22 mm和10.10 mm。此外，水稳定性Zn-MOF可以作为有效的光催化剂用于四环素的光降解，实现50 min内降解率达67%，具有良好的循环稳定性，并利用紫外可见漫反射光谱（UV-VIS DRS）和价带X射线光电子能谱（VB-XPS）研究了其光降解机理。结合 Zn-MOF 的 ESR 曲线，表明·O2− 是负责四环素光降解的主要活性物质。此外，光电测量结果表明Zn-MOF在光照下具有良好的光电流产生性能。这为我们研究 Zn-MOF 材料作为未来环境改善应用的合适多功能平台提供了新的视角。