Cerium(IV)-based metal-organic frameworks (MOFs) have gained a growing attention in both scientific and industrial spheres due to their unique potential in fields such as redox catalysis and photocatalysis. However, the synthetic pathways of Ce(IV)-MOFs are still extremely dominated by the conventional solvothermal conditions. Meanwhile, the research on photocatalysis of Ce(IV)-MOFs is still in its infancy, more experimental evidence is highly desirable to accelerate the development of this field. Here we present an innovative, widespread, green and sustainable synthetic route for nanocrystalline Ce(IV)-MOFs with the UiO-66 structure. Seven Ce-UiO-66-MOFs were successfully prepared at room temperature using water as the sole solvent in the presence of sodium acetate (NaAc). Furthermore, the photocatalytic activities of these Ce(IV)-MOFs for decarboxylative oxygenation of 4-fluorophenylacetic acid to give corresponding C–O bond-forming products 4-fluorobenzaldehyde and 4-fluorobenzyl alcohol under blue light-emitting diodes (LEDs) irradiation and air were studied. Control experiments revealed that Ce-UiO-66-BDC exhibited the optimized catalytic efficiency among these Ce(IV)-MOFs, and can be applied to various arylacetic acids.

基于铈（IV）的金属有机框架（MOF）由于其在氧化还原催化和光催化等领域的独特潜力而在科学和工业领域受到越来越多的关注。然而，Ce(IV)-MOFs 的合成途径仍然极度受传统溶剂热条件的支配。同时，Ce(IV)-MOFs的光催化研究仍处于起步阶段，需要更多的实验证据来加速该领域的发展。在这里，我们提出了一种创新、广泛、绿色和可持续的合成路线，用于合成具有 UiO-66 结构的纳米晶 Ce(IV)-MOF。在醋酸钠 (NaAc) 存在下，以水为唯一溶剂，在室温下成功制备了七种 Ce-UiO-66-MOF。此外，这些 Ce(IV)-MOF 在蓝色发光二极管 (LED) 照射和空气下对 4-氟苯乙酸的脱羧氧化生成相应的 C-O 键形成产物 4-氟苯甲醛和 4-氟苯甲醇的光催化活性是研究过。对照实验表明，Ce-UiO-66-BDC 在这些 Ce(IV)-MOF 中表现出最佳的催化效率，可应用于各种芳基乙酸。