Coordination-Driven Assembly of Metal–Organic Framework Coating for Catalytically Active Superhydrophobic Surface

Bo Yi; Yan-Lung Wong; Changshun Hou; Jianqiang Zhang; Zhengtao Xu; Xi Yao

doi:10.1002/admi.202001202

Author(s)

Zhengtao Xu

Related Research Unit(s)

Detail(s)

Original language	English
Article number	2001202
Number of pages	7
Journal / Publication	Advanced Materials Interfaces
Volume	8
Issue number	2
Online published	27 Sept 2020
Publication status	Published - 22 Jan 2021

Link(s)

DOI	DOI https://doi.org/10.1002/admi.202001202 Final Published version
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Attachment(s)	Documents 58669217.pdf Post-print, 685 KB, PDF Publisher's Copyright Statement COPYRIGHT TERMS OF DEPOSITED POSTPRINT FILE: This is the peer reviewed version of the following article: Yi, B., Wong, Y-L., Hou, C., Zhang, J., Xu, Z., & Yao, X. (2021). Coordination-Driven Assembly of Metal–Organic Framework Coating for Catalytically Active Superhydrophobic Surface. Advanced Materials Interfaces, 8(2), [2001202], which has been published in final form at https://doi.org/10.1002/admi.202001202. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
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Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(8fd584b7-97ca-4999-a509-dade14b072fd).html

Abstract

Here, a superhydrophobic and catalytically active metal–organic framework (MOF) coating is reported by coordination-driven assembly of MOF nanoparticles and a catechol-functionalized polysiloxane polymer. This MOF coating can be fabricated by casting MOF-polymer precursor onto diverse substrates with varied coating techniques, for example, spray coating, bar coating, and dip coating. The catechol-functionalized polymer can not only coordinate to the open metal sites on MOF surface which enables the surface functionalization and assembly of MOF nanoparticles, but also allow non-covalent interactions with casting substrates—thus improving the substrate adhesion of the MOF coating. With the well-preserved porosity and surface hydrophobicity, the MOF coating demonstrates superhydrophobicity as well as improved catalytic activity toward the Knoevenagel condensation at room temperature. Such coordination-driven assembly approach can be extended to a range of MOF systems for preparing highly functional composite materials toward various applications.