Water-induced synthesis of hierarchical Zr-based MOFs with enhanced adsorption capacity and catalytic activity

Water-induced synthesis of hierarchical Zr-based MOFs with enhanced adsorption capacity and catalytic activity
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水诱导合成具有增强吸附能力和催化活性的多级Zr基MOFs

DOI:
10.1016/j.micromeso.2019.03.010
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发表时间:
2019-06
影响因子:
5.2
通讯作者:
Li Ruifeng
Li Ruifeng
中科院分区:
材料科学2区
文献类型:
--
作者:
Niu Panpan;Lu Ningyue;Liu Jiaojiao;Jia Huanhuan;Zhou Fan;Fan Binbin;Li Ruifeng

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在传统的UiO-66/UiO-66-NH 2合成方法中引入适量的水,在不需要螯合剂、表面活性剂或陈化的条件下,成功合成了分级结构的UiO-66及其氨基类似物UiO-66-NH 2纳米晶. UiO-66/UiO-66-NH 2产物的分级多孔性质和粒度可以通过水的量容易地调节。与微孔UiO-66/UiO-66-NH 2相比,分级UiO-66/UiO-66-NH 2纳米晶体对染料的吸附能力和酯化/Knoevenagel反应中的催化活性显着增强。这种简便的合成策略为制备具有分级结构和功能性相结合的UiO材料提供了一种新的替代方法。
Hierarchical UiO-66 and its amino-analogue UiO-66-NH2nanocrystals were successfully synthesized by introducing a suitable amount of water into the conventional synthesis of UiO-66/UiO-66-NH2without the need for a chelating agent, surfactant or aging. The hierarchical porous qualities and particle sizes of the UiO-66/UiO-66-NH2products can be facilely tuned by the amounts of water. Hierarchical UiO-66/UiO-66-NH2nanocrystals exhibited significantly enhanced adsorption capacity for dyes and catalytic activity in esterification/Knoevenagel reactions compared to the microporous UiO-66/UiO-66-NH2. This facile synthetic strategy offers a new alternative way to prepare UiO materials with the combination of hierarchical and functional property.
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