Photoactive metal–organic frameworks (MOFs) have proven to be a promising porous material in the field of catalysis. Controllable integration of these MOFs with inorganic semiconductor materials may endow new multifunctional hybrid materials with preferable photocatalytic properties. In this research, NH₂-MIL-125(Ti) nanoplates modified Bi₂WO₆ microspheres was prepared via a simple solvothermal method. The photocatalytic behaviors of the acquired catalysts was evaluated via the degradation of tetracycline hydrochloride (TC) under visible light. The experimental results showed that NH₂-MIL-125(Ti)/Bi₂WO₆ composites display higher photocatalytic activity than that of single Bi₂WO₆, and the ideal incorporation amount of NH₂-MIL-125(Ti) was around 5 wt%. The steady state fluorescence spectrum, transient photocurrents and electrochemical impedance spectroscopy verified that the introduction of NH₂-MIL-125(Ti) could accelerate the separation and transfer of photogenerated carriers and thus improve the photocatalytic activity of Bi₂WO₆. The photocatalytic mechanism was explored in detail. This work extends the knowledge of integrating MOFs with traditional photocatalysts to form new composite materials in the area of environmental purification.

在催化领域，光活性金属-有机骨架（MOF）已被证明是有希望的多孔材料。这些MOF与无机半导体材料的可控整合可以赋予新型多功能杂化材料以更好的光催化性能。在这项研究中，通过简单的溶剂热法制备了NH ₂ -MIL-125（Ti）纳米板修饰的Bi ₂ WO ₆微球。通过在可见光下降解四环素盐酸盐（TC）评估获得的催化剂的光催化行为。实验结果表明，NH ₂ -MIL-125（Ti）/ Bi ₂ WO ₆复合材料的光催化活性高于单一Bi。₂ WO ₆，并且NH ₂ -MIL-125（Ti）的理想掺入量为约5wt％。稳态荧光光谱，瞬时光电流和电化学阻抗谱证明，NH ₂ -MIL-125（Ti）的引入可以促进光生载流子的分离和转移，从而提高Bi ₂ WO ₆的光催化活性。详细探讨了光催化机理。这项工作扩展了将MOF与传统的光催化剂结合在一起的知识，从而在环境净化领域形成了新的复合材料。