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Precise Formation of a Hollow Carbon Nitride Structure with a Janus Surface To Promote Water Splitting by Photoredox Catalysis

The precise modification of redox species on the inner and outer surfaces of hollow nanostructures is relevant in catalysis, surface science, and nanotechnology, but has proven difficult to achieve. Herein, we develop a facile approach to specifically fabricate Pt and Co(3)O(4) nanoparticles (NPs) o...

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Detalles Bibliográficos
Autores principales: Zheng, Dandan, Cao, Xu‐Ning, Wang, Xinchen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5113764/
https://www.ncbi.nlm.nih.gov/pubmed/27533739
http://dx.doi.org/10.1002/anie.201606102
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author Zheng, Dandan
Cao, Xu‐Ning
Wang, Xinchen
author_facet Zheng, Dandan
Cao, Xu‐Ning
Wang, Xinchen
author_sort Zheng, Dandan
collection PubMed
description The precise modification of redox species on the inner and outer surfaces of hollow nanostructures is relevant in catalysis, surface science, and nanotechnology, but has proven difficult to achieve. Herein, we develop a facile approach to specifically fabricate Pt and Co(3)O(4) nanoparticles (NPs) onto the interior and exterior surface of hollow carbon nitride spheres (HCNS), respectively, to promote the surface redox functions of the polymer semiconductors. The photocatalytic water splitting activities of HCNS with spatially separated oxidation and reduction centers at their nanodomains were enhanced. The origin of the enhanced activity was attributed to the spatially separated reactive sites for the evolution of H(2) and O(2) and also to the unidirectional migration of the electron and hole on the Janus surfaces, thereby preventing the unwanted reverse reaction of water splitting and decreasing charge recombination.
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spelling pubmed-51137642016-12-02 Precise Formation of a Hollow Carbon Nitride Structure with a Janus Surface To Promote Water Splitting by Photoredox Catalysis Zheng, Dandan Cao, Xu‐Ning Wang, Xinchen Angew Chem Int Ed Engl Communications The precise modification of redox species on the inner and outer surfaces of hollow nanostructures is relevant in catalysis, surface science, and nanotechnology, but has proven difficult to achieve. Herein, we develop a facile approach to specifically fabricate Pt and Co(3)O(4) nanoparticles (NPs) onto the interior and exterior surface of hollow carbon nitride spheres (HCNS), respectively, to promote the surface redox functions of the polymer semiconductors. The photocatalytic water splitting activities of HCNS with spatially separated oxidation and reduction centers at their nanodomains were enhanced. The origin of the enhanced activity was attributed to the spatially separated reactive sites for the evolution of H(2) and O(2) and also to the unidirectional migration of the electron and hole on the Janus surfaces, thereby preventing the unwanted reverse reaction of water splitting and decreasing charge recombination. John Wiley and Sons Inc. 2016-08-17 2016-09-12 /pmc/articles/PMC5113764/ /pubmed/27533739 http://dx.doi.org/10.1002/anie.201606102 Text en © 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs (http://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Communications
Zheng, Dandan
Cao, Xu‐Ning
Wang, Xinchen
Precise Formation of a Hollow Carbon Nitride Structure with a Janus Surface To Promote Water Splitting by Photoredox Catalysis
title Precise Formation of a Hollow Carbon Nitride Structure with a Janus Surface To Promote Water Splitting by Photoredox Catalysis
title_full Precise Formation of a Hollow Carbon Nitride Structure with a Janus Surface To Promote Water Splitting by Photoredox Catalysis
title_fullStr Precise Formation of a Hollow Carbon Nitride Structure with a Janus Surface To Promote Water Splitting by Photoredox Catalysis
title_full_unstemmed Precise Formation of a Hollow Carbon Nitride Structure with a Janus Surface To Promote Water Splitting by Photoredox Catalysis
title_short Precise Formation of a Hollow Carbon Nitride Structure with a Janus Surface To Promote Water Splitting by Photoredox Catalysis
title_sort precise formation of a hollow carbon nitride structure with a janus surface to promote water splitting by photoredox catalysis
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5113764/
https://www.ncbi.nlm.nih.gov/pubmed/27533739
http://dx.doi.org/10.1002/anie.201606102
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