Metal–organic frameworks (MOFs) have introduced heterogeneity in their homogeneous matrix to create new functions that cannot be realized by each MOF individually. In this study, we chemically combined two different MOFs (UiO‐66 and HKUST‐1) in granola‐type granules (termed as HKUST‐1∧UiO‐66) to create a heterojunction of pores in nanocrystalline particles. The structure, morphology, elemental composition, and pore environment were characterized to confirm that two types of pores are in conjunction all over the HKUST‐1∧UiO‐66 granules. We found that the HKUST‐1∧UiO‐66 granules showed an enhanced CO₂ sorption capacity than its constituents due to the complexity and the heterojunction of pores inside. Moreover, the HKUST‐1∧UiO‐66 granules present four and two times higher formaldehyde removal capacity than those of the HKUST‐1 and UiO‐66 samples, respectively.

中文翻译：

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两种不同的金属有机骨架的格兰诺拉麦片型晶体中的孔异质结，可增强除甲醛效果

金属有机框架（MOF）在其均质矩阵中引入了异质性，以创建每个MOF不能单独实现的新功能。在这项研究中，我们将格兰诺拉麦片型颗粒（称为HKUST-1 HKUiO-66）中的两种不同的MOF（UiO-66和HKUST-1）化学结合，以在纳米晶体颗粒中形成孔的异质结。对结构，形态，元素组成和孔环境进行了表征，以确认在HKUST-1∧UiO-66颗粒上两种类型的孔结合在一起。我们发现HKUST-1∧UiO-66颗粒显示出增强的CO ₂由于其复杂性和内部孔隙的异质结，其吸附能力高于其成分。此外，HKUST-1∧UiO-66颗粒的甲醛去除能力分别比HKUST-1和UiO-66样品高四倍和两倍。