纳米架构双 Z 型 Zr-MOF/Ti-MOF/g-C3N4 异质结，用于在可见光条件下促进 Gomberg-Buchmann-Hey 反应,ACS Sustainable Chemistry & Engineering

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纳米架构双 Z 型 Zr-MOF/Ti-MOF/g-C3N4 异质结，用于在可见光条件下促进 Gomberg-Buchmann-Hey 反应
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2023-02-13 , DOI: 10.1021/acssuschemeng.2c04810
Hassan Sepehrmansourie ₁ , Hassan Alamgholiloo ₁ , Mohammad Ali Zolfigol ₁ , Nader Noroozi Pesyan ₂ , Milad Mohammadi Rasooll ₁

Affiliation

将两种以上具有不同结构的金属有机骨架 (MOF) 结合起来是构建混合 MOF 的一种智能策略。在此，开发了具有 gC ₃ N ₄纳米片的组织良好的 UiO-66(Zr)-on-MIL-125(Ti)-NH ₂生长用于可见光照射 (λ > 420 nm) 下的 Gomberg-Buchmann-Hey 反应. 首先，通过溶剂热法制备了作为主体 MOF 的 UiO-66(Zr) 微孔。随后，MIL-125(Ti)-NH ₂晶体和gC ₃ N ₄纳米片在UiO-66(Zr)内部生长，得到一种新型的双Z型Zr-MOF/Ti-MOF/gC ₃ N ₄异质结光催化剂。在可见光照射下，这种双 Z 型异质结作为一种高效的光催化剂，通过重氮盐形成 C-C 键，可以与最好的光催化剂体系竞争。_{研究结果表明，在 MOF-on-MOF 和 gC 3} N ₄纳米片中存在 Zr 和 Ti 金属可以显着增加光生电子-空穴对的分离，从而提高光催化性能。本研究不仅为 MOF 在其他 MOF 上的结构提供了新的见解，而且还开发了 Z 型异质结材料，用于可见光照射下的偶联反应和其他有机反应。

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Nanoarchitecting a Dual Z-Scheme Zr-MOF/Ti-MOF/g-C3N4 Heterojunction for Boosting Gomberg–Buchmann–Hey Reactions under Visible Light Conditions

Combining more than two metal–organic frameworks (MOFs) with different structures is an intelligent strategy for the architecture of hybrid MOFs. Herein, well-organized UiO-66(Zr)-on-MIL-125(Ti)-NH₂ growth with g-C₃N₄ nanosheets was developed for the Gomberg–Buchmann–Hey reaction under visible light irradiation (λ > 420 nm). First, UiO-66(Zr) micropores as host MOFs were fabricated by a solvothermal method. Subsequently, MIL-125(Ti)-NH₂ crystals and g-C₃N₄ nanosheets were grown inside UiO-66(Zr) to obtain a new type of the dual Z-scheme Zr-MOF/Ti-MOF/g-C₃N₄ heterojunction photocatalyst. Under visible light irradiation, this dual Z-scheme heterojunction acts as a highly efficient photocatalyst for forming C–C bonds via diazonium salts, which can compete with the best photocatalyst systems. The findings indicated that the presence of Zr and Ti metals in MOF-on-MOF and g-C₃N₄ nanosheets could significantly increase the separation of photogenerated electron–hole pairs and then enhance the photocatalytic performance. The present study not only provides new insights into the architecture of MOFs on other MOFs but also develops Z-scheme heterojunction materials for coupling reactions and other organic reactions under visible light irradiation.

更新日期：2023-02-13

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