Solvent-assisted linker exchange (SALE) was performed on two pillared metal–organic frameworks (MOFs), [Zn₂(oba)₂(4-bpdb)]_n·(DMF)₂ (TMU-4) and [Zn(oba)(4-bpmb)_0.5]_n·(DMF)_1.5 (TMU-6), to tune their photocatalytic properties. The pillar ligands were successfully replaced in these MOFs to generate daughter MOFs TMU-4′ and TMU-6′, which possess higher BET surface areas. Moreover, a study was performed to examine the photocatalytic performance of these parent and daughter MOFs in photoreduction of Cr(VI) under visible light irradiation. Finally, the reduction mechanism was investigated by using various scavengers including AgNO₃, t-butyl alcohol, BQ and ammonium oxalate.

中文翻译：

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通过溶剂辅助的接头交换增强两个锌基金属-有机骨架的光催化性能

溶剂辅助的连接子交换（SALE）在两个有柱金属-有机骨架（MOF），[Zn ₂（oba）₂（4-bpdb）] _n ·（DMF）₂（TMU-4）和[Zn（oba）上进行）（4-bpmb）_0.5 ] _n ·（DMF）_1.5（TMU-6），以调节其光催化性能。在这些MOF中成功取代了柱状配体，从而生成了子母MOF TMU-4'和TMU-6'，它们具有更高的BET表面积。此外，进行了一项研究，以检查这些母体和子体MOF在可见光照射下对Cr（VI）光还原的光催化性能。最后，通过使用包括AgNO在内的各种清除剂研究了还原机理。₃，叔丁醇，BQ和草酸铵。