Universal, controllable, large-scale and facile fabrication of nano-MOFs tightly-bonded on flexible substrate

Universal, controllable, large-scale and facile fabrication of nano-MOFs tightly-bonded on flexible substrate
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通用、可控、大规模且简便地制造紧密粘合在柔性基底上的纳米 MOF

DOI:
10.1016/j.cej.2020.125181
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发表时间:
2020-09
影响因子:
15.1
通讯作者:
Lin Baofeng
Lin Baofeng
中科院分区:
工程技术1区
文献类型:
--
作者:
Huang Guohuan;Xu Danxia;Qi Zhimei;Liang Qun;Xu Chuanhui;Lin Baofeng

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纳米金属有机骨架(nanoMOFs)是一种具有广泛应用前景的材料。然而,对于实际应用,这是一个很大的挑战,将脆性的MOFs变成柔性材料,适用于通用的,大规模的制造。在此,我们开发了一种简单,通用,可控,大规模的策略,通过灵活地控制成核和生长的nanoMOFs基复合材料的紧密结合和灵活的。基于这一通用策略,在温和条件下成功制备了一系列紧密键合的柔性纳米MOFs @羧甲基滤纸(nanoMOFs@CMFP)。具体而言,在机械变形和磨损(200次循环)后,ZIF-67在ZIF-67@CMFP上的保留率仍高达93.87%,这证实了纳米MOFs @CMFP的柔性和超稳定性。此外,该方法除了具有普遍适用性外,还可用于柔性纳米MOFs @CMFP的大规模合成。同时,该柔性复合材料具有良好的低毒、抗菌和伤口愈合性能,具有实际应用价值。因此,本研究有望解决纳米MOFs在实际应用中的灵活使用问题。
Nanoscale metal-organic frameworks (nanoMOFs) are promising materials for many applications. However, for actual applications, it is a big challenge to change the brittle MOFs into flexible materials suitable for universal, large-scale fabrication. Herein, we develop a facile, universal, controllable, large-scale strategy to fabricate the tightly-bonded and flexible nanoMOFs-based composites by flexibly controlling the nucleation and growth of nanoMOFs. Based on this universal strategy, a series of tightly-bonded and flexible nanoMOFs@carboxymethylated filter paper (nanoMOFs@CMFP) are successfully prepared under mild conditions. Specifically, the retention of ZIF-67 on the ZIF-67@CMFP is still up to 93.87% after the mechanical deformation and abrasion (200 cycles), which confirms the flexibility and ultra-stability of nanoMOFs@CMFP. Moreover, besides the universal applicability, this method also can be used for large-scale synthesis of flexible nanoMOFs@CMFP. Furthermore, the excellent performance of low toxicity, antibacterial and wound healing confirms that the flexible composites have practical application value. Therefore, this study is expected to solve the problem of the flexible use of nanoMOFs in the practical application.
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