Zheng Xingxing, Chen Yanmei, Ran Jingwen, Li Li
Hubei Key Laboratory for Processing and Application of Catalytic Materials, College of Chemistry and Chemical Engineering, Huanggang Normal University, Huanggang, 438000, China.
Sci Rep. 2020 Apr 14;10(1):6273. doi: 10.1038/s41598-020-63277-0.
A copper (I) polymer, [CuMg(pzdc)(HO)•2HO] (pzdc = 2,3-Pyrazinedicarboxylic acid), was synthesized by solvothermal method. The complex was characterized using X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), ultraviolet-visible spectrophotometry (UV-Vis), and element analysis. X-ray crystal structure analysis reveals that the complex is a two-dimensional coordination polymer. The photophysical and luminescent properties of the complex were investigated. At room temperature, the complex exhibits reversible double strands cyclic voltammogram and displays efficient blue emission with peak maxima at 468 nm. Catalytic liquid phase oxidation of dyes and glyphosate was carried out using the copper (I) polymer as catalyst and HO as oxidant. Degradation efficiencies were evaluated by varying the reaction conditions (i.e. illumination and oxidant). In the degradation reactions, the polymer exhibits high degradation efficiency within a short reaction time under the optimum reaction conditions. Furthermore, the reusability of the catalyst is excellent, showing no activity loss in four repeated cycles. The possible reaction mechanism catalyzed by the polymer was inferred on the basis of the results of electron spin resonance (ESR), electrochemical and ion chromatography analyses (IC).
通过溶剂热法合成了一种铜（I）聚合物[CuMg(pzdc)(HO)•2HO]（pzdc = 2,3 - 吡嗪二甲酸）。使用X射线衍射（XRD）、傅里叶变换红外光谱（FT - IR）、紫外 - 可见分光光度法（UV - Vis）和元素分析对该配合物进行了表征。X射线晶体结构分析表明该配合物是一种二维配位聚合物。研究了该配合物的光物理和发光性质。在室温下，该配合物表现出可逆的双链循环伏安图，并在468 nm处显示出高效的蓝色发射峰。以铜（I）聚合物为催化剂、HO为氧化剂进行了染料和草甘膦的催化液相氧化反应。通过改变反应条件（即光照和氧化剂）来评估降解效率。在降解反应中，该聚合物在最佳反应条件下于短反应时间内表现出高降解效率。此外，该催化剂的可重复使用性极佳，在四个重复循环中未显示出活性损失。基于电子自旋共振（ESR）、电化学和离子色谱分析（IC）的结果推断了该聚合物催化的可能反应机理。
