Carbon nitride nanosheet/metal–organic framework nanocomposites with synergistic photocatalytic activities

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Title: Carbon nitride nanosheet/metal–organic framework nanocomposites with synergistic photocatalytic activities
Authors: Hong, J
Chen, C
Bedoya, FE
Kelsall, GH
O'Hare, D
Petit, C
Item Type: Journal Article
Abstract: © 2016 The Royal Society of Chemistry.Heterogeneous photocatalysis plays a key role in the implementation of novel sustainable technologies, e.g. CO2 conversion into fuel, H2 production from water or organics degradation. The progress of photocatalysis relies on the development of tuneable photocatalysts and particularly the ability to build nanocomposites exhibiting synergistic properties with reduced electron-hole recombination rates. We report for the first time the in situ synthesis of nanocomposites of carbon nitride nanosheets (CNNSs) and metal-organic frameworks (MOFs) for application as photocatalysts. This approach leads to the nano-scale mixing of the components, thereby enabling a greater performance compared to other types of 2D materials/MOF composites typically obtained via physical mixing. The objective is to take advantage of the complementary features of the materials while forming a heterojunction. The structural, chemical, photophysical and electrochemical properties of the nanocomposites are characterized and compared to those of the parent materials and their physical mixture. The nanocomposites retain the high specific surface area and strong visible light absorbance of MIL-100(Fe). The intimate contact between the CNNSs and the MOF particles is found to promote the electron-hole separation significantly due to the formation of a heterojunction. Hence, more efficient photocatalytic dye degradation is achieved over the composites than the physical mixture.
Issue Date: 4-Mar-2016
Date of Acceptance: 3-Mar-2016
URI: http://hdl.handle.net/10044/1/31517
DOI: https://dx.doi.org/10.1039/C5CY01857A
ISSN: 2044-4753
Publisher: Royal Society of Chemistry
Start Page: 5042
End Page: 5051
Journal / Book Title: Catalysis Science & Technology
Volume: 6
Copyright Statement: © The Royal Society of Chemistry 2016
Notes: crosscheck: This document is CrossCheck deposited related_data: Supplementary Information identifier: Chunping Chen (ResearcherID) copyright_licence: The Royal Society of Chemistry has an exclusive publication licence for this journal copyright_licence: The accepted version of this article will be made freely available in the Chemical Sciences Article Repository after a 12 month embargo period history: Received 30 October 2015; Accepted 3 March 2016; Accepted Manuscript published 4 March 2016; Advance Article published 17 March 2016
Publication Status: Published
Appears in Collections:Faculty of Engineering
Chemical Engineering



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