Site-specific growth of MOF-on-MOF heterostructures with controllable nano-architectures: beyond the combination of MOF analogues

Liu, Chao; Lin, Lina; Sun, Qiang; Wang, Jing; Huang, Rong; Chen, Wenyi; Li, Shumin; Wan, Jingjing; Zou, Jin; Yu, Chengzhong

doi:10.1039/d0sc00417k

Cited by 95 publications

(71 citation statements)

References 61 publications

(73 reference statements)

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“…The intensity of these two radicals for type B heterostructure under irradiation is higher than that of type B in dark, ZIF-8, MIL-125, ZIF-67 and type b under irradiation, indicating that the activation of PMS is enhanced by the photocatalytic property of type B catalyst. Meanwhile, characteristic signal of O 2 •− was also detected in the systems of type B , ZIF-8, MIL-125, ZIF-67 and type b under irradiation 44 , 46 , but not in type B in dark (Supplementary Fig. 44b ).…”

Section: Resultsmentioning

confidence: 97%

“…In the presence of MIL-125, the heterogenous nucleation of ZIF-8 on MIL-125 is driven by the interaction between exposed Ti-O cluster on four {110} facets of MIL-125 (i.e., the four corners) and linkers on the {001} facets of ZIF-8 according to our previous findings (Supplementary Figs. 23 – 25 , and 26b ) 46 . The exposed Ti-O clusters could be fully utilized to connect with 2-MeIM, leaving one Zn 2+ not connected to the Ti-O node 46 .…”

Section: Resultsmentioning

confidence: 97%

“…23 – 25 , and 26b ) 46 . The exposed Ti-O clusters could be fully utilized to connect with 2-MeIM, leaving one Zn 2+ not connected to the Ti-O node 46 . Further epitaxial growth of ZIF-8 on the corner of MIL-125, due to the lattice match of {110} MIL-125 /{001} ZIF-8 , generates type b heterostructure with slight lattice expansion of ZIF-8 (Supplementary Fig.…”

Section: Resultsmentioning

confidence: 97%

“…Type b binary heterostructure (MIL-125@ZIF-8) was synthesized according to our recent publication 46 . The SEM and TEM images (Supplementary Fig.…”

Section: Resultsmentioning

confidence: 99%

“…It is noted that the growth of guest MOF on one specific facet of host MOF has been reported to generate binary MOF-on-MOF structures 28 , 37 – 39 , 43 , 46 . However, utilizing one host MOF with different facets that can individually regulate the growth of other guest MOF building blocks is demonstrated in this work.…”

Section: Resultsmentioning

confidence: 99%

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Ternary MOF-on-MOF heterostructures with controllable architectural and compositional complexity via multiple selective assembly

et al. 2020

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Assembly of different metal-organic framework (MOF) building blocks into hybrid MOF-on-MOF heterostructures is promising in chemistry and materials science, however the development of ternary MOF-on-MOF heterostructures with controllable architectural and compositional complexity is challenging. Here we report the synthesis of three types of ternary MOF-on-MOF heterostructures via a multiple selective assembly strategy. This strategy relies on the choice of one host MOF with more than one facet that can arrange the growth of a guest MOF, where the arrangement is site-selective without homogenous growth of guest MOF or homogenous coating of guest on host MOF. The growth of guest MOF on a selected site of host MOF in each step provides the opportunity to further vary the combinations of arrangements in multiple steps, leading to ternary MOF-on-MOF heterostructures with tunable complexity. The developed strategy paves the way towards the rational design of intricate and unprecedented MOF-based superstructures for various applications.

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 97%

“…Type b binary heterostructure (MIL-125@ZIF-8) was synthesized according to our recent publication 46 . The SEM and TEM images (Supplementary Fig.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Ternary MOF-on-MOF heterostructures with controllable architectural and compositional complexity via multiple selective assembly

et al. 2020

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Semiconducting MOF@ZnS Heterostructures for Photocatalytic Hydrogen Peroxide Production: Heterojunction Coverage Matters

Liu

Bao

Yuan

et al. 2021

Adv Funct Materials

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Construction of semiconducting metal-organic framework based heterostructures is emerging as a promising strategy for enhancing their photocatalytic performances. Here, tetrapod-like NH 2 -MIL-125@ZnS heterostructures with tunable heterojunction coverage and well-matched band structure are synthesized as photocatalysts. When used for photocatalytic O 2 reduction reaction, a heterojunction coverage of ≈45.1% leads to the best performance with a hydrogen peroxide production rate of ≈120 mm g −1 h −1 , outperforming control samples with either larger or smaller heterojunction coverages and most reported MOF based photocatalysts in similar reaction systems.

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A S‐Scheme MOF‐on‐MOF Heterostructure

Yuan

Zhang

Zou

et al. 2023

Adv Funct Materials

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Constructing MOF‐on‐MOF heterojunction with elaborate charge transfer mechanism and interface is a promising strategy for improving the photocatalytic properties of MOFs. Herein, a Step‐scheme (S‐scheme) MIL‐125‐NH2@CoFe Prussian blue analogue (PBA) heterojunction is reported for the first time. The MOF‐on‐MOF heterostructure exhibits a sandwich‐like morphology with hollow CoFe PBA nanocages selectively assembled on the top‐down surfaces of MIL‐125‐NH2 nanocakes. Experimental findings and theoretical simulation results reveal the formation of internal electric field via interfacial TiOCo bonds at the heterojunction, providing driving force and atomic transportation highway for accelerating the S‐scheme charge transfer and enhancing the redox performance. Contributed further by the hollow sandwich‐like structures with increased active site exposure, the designed MOF‐on‐MOF heterojunction exhibits significantly enhanced photocatalytic activity for degradation of various organic pollutants. This study provides insights toward the rational design of semiconducting MOF‐based heterojunctions with improved properties.

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Site-specific growth of MOF-on-MOF heterostructures with controllable nano-architectures: beyond the combination of MOF analogues

Abstract: A site-specific epitaxial-growth strategy is developed to synthesize two types of MOF-on-MOF heterostructures with elaborately designed architectures, which are comprised of two MOFs with totally different compositions.

Cited by 95 publications

References 61 publications

Ternary MOF-on-MOF heterostructures with controllable architectural and compositional complexity via multiple selective assembly

Ternary MOF-on-MOF heterostructures with controllable architectural and compositional complexity via multiple selective assembly

Semiconducting MOF@ZnS Heterostructures for Photocatalytic Hydrogen Peroxide Production: Heterojunction Coverage Matters

A S‐Scheme MOF‐on‐MOF Heterostructure

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