5-(dimethylamino) isophthalic acid (H₂dia) and 1H-imidazole (mdz) were used as ligands to react with Zn(Ⅱ) or Cu(Ⅱ) metal salts to generate three new transition metal complexes [Zn(dia)(mdz)₂]·2H₂O (1), [Cu(dia)(mdz)₂ (DMF)] (2) and [Cu(dia)(mdz)₂]·H₂O (3). Their structures were characterized by single-crystal X-ray diffraction, elemental analysis, IR, thermogravimetric analyses, and Hirshfeld surface analyses. The results revealed that complexes 1 and 2 possess 1D linear chains, each four-coordinated Zn(Ⅱ) of 1 is located in the geometric center of the distorted tetrahedron, but the Cu(Ⅱ) metal center of 2 is five-coordinated and holds a triangular bipyramidal geometry. The zigzag 1D chain of complex 3 was obtained by changing the solvent in the synthesis, and the four-coordinated Cu(Ⅱ) ion is in the centre of the square planar. Results indicate that the geometries of metal centers and synthetic solvents have important effects on the structures of complexes. Abundant intermolecular hydrogen bonding plays an important role in the stability of their 3D supramolecular structures. Thermogravimetric analyses revealed that the complexes have good thermal stabilities. Solid fluorescence analyses showed that complex 1 had excellent fluorescence, but the fluorescence intensities of complexes 2 and 3 were much lower than those of ligands.

采用一步水热法合成了g-C₃N₄/Bi₂WO₆(MCN/BWO)异质结光催化剂，用于降解左氧氟沙星(LEV)。在模拟太阳光照射下，摩尔比为1 : 1的MCN/BWO对LEV的降解率达到98.14%，这归因于MCN和BWO之间形成了S型异质结。原位XPS分析和表面功函数测量证实了电子转移路径遵循S型异质结机制。MCN/BWO体系中S型异质结产生的内建电场(IEF)促进了光生电子(e⁻)从BWO的导带(CB)直接转移到MCN的价带(VB)。这一过程实现了光生电子-空穴对(e⁻-h⁺)的有效分离，h⁺在BWO的VB上积累，e⁻在MCN的CB上积累。自由基捕获实验表明，超氧自由基(·O₂⁻)和h⁺是主要的活性物种。除了表现出优异的光催化性能外，该催化剂在连续三个循环中保持了良好的稳定性。为了阐明降解机制，采用液相色谱-质谱(LC-MS)和定量构效关系(QSAR)分析来鉴定降解途径、中间产物和潜在毒性。本研究为废水处理应用提供了理论基础。

甲醇水蒸气重整(methanol steam reforming, MSR)反应是实现甲醇在线制氢的重要途径，在清洁能源应用中具有重要作用。MSR反应中的催化性能直接影响氢气产量和副产物组成，其中Cu基和Pt基催化剂被广泛研究。其催化机制主要涉及甲醇和水分子中C―H和O―H键的断裂。Cu基催化剂的活性依赖于Cu⁰和Cu⁺位点的比例及协同作用，Pt基催化剂则通过Pt⁰、Pt^δ+或Pt²⁺活性位点与氧空位的相互作用发挥作用。然而，活性金属与载体之间的电子转移及相互作用机制仍存争议，影响金属价态、吸附位点及反应路径选择，特别是在甲醇脱氢生成中间产物(如甲醛、甲酸和甲酸甲酯)的反应路径上，尚未形成统一认识。本文总结了Cu⁰与Cu⁺的单位点与协同位点机制，探讨了Pt基催化剂的直接路径与协同路径，分析In₂O₃等对Pt位点调控及氧空位生成的促进作用。通过催化性能评估与机理研究，提出了优化催化剂活性和稳定性的策略。本综述不仅深化了对MSR反应机理的理解，还为高效催化剂的设计提供了理论基础和研究方向。