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On-Surface Bottom-Up Construction of COF Nanoshells towards Photocatalytic H(2) Production
The rational design of an outer shell is of great significance to promote the photocatalytic efficiency of core-shell structured photocatalysts. Herein, a covalent organic framework (COF) nanoshell was designed and deposited on the cadmium sulfide (CdS) core surface. A typical COF material, TPPA, fe...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
AAAS
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8356126/ https://www.ncbi.nlm.nih.gov/pubmed/34405143 http://dx.doi.org/10.34133/2021/9798564 |
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author | Chen, Yao Yang, Dong Gao, Yuchen Li, Runlai An, Ke Wang, Wenjing Zhao, Zhanfeng Xin, Xin Ren, Hanjie Jiang, Zhongyi |
author_facet | Chen, Yao Yang, Dong Gao, Yuchen Li, Runlai An, Ke Wang, Wenjing Zhao, Zhanfeng Xin, Xin Ren, Hanjie Jiang, Zhongyi |
author_sort | Chen, Yao |
collection | PubMed |
description | The rational design of an outer shell is of great significance to promote the photocatalytic efficiency of core-shell structured photocatalysts. Herein, a covalent organic framework (COF) nanoshell was designed and deposited on the cadmium sulfide (CdS) core surface. A typical COF material, TPPA, featuring exceptional stability, was synthesized through interfacial polymerization using 1, 3, 5-triformylphloroglucinol (TP) and p-phenylenediamine (PA) as monomers. The nanoshell endows the CdS@TPPA nanosphere with ordered channels for unimpeded light-harvesting and fast diffusion of reactants/products and well-defined modular building blocks for spatially charge separation. Moreover, the heterojunction formed between CdS and TPPA can further facilitate the effective charge separation at the interface via lower exciton binding energy compared with that of pristine TPPA. By modulating the thickness of TPPA nanoshell, the CdS@TPPA nanosphere photocatalyst with the nanoshell thickness of about 8 ± 1 nm exhibits the highest photocatalytic H(2) evolution of 194.1 μmol h(−1) (24.3 mmol g(−1) h(−1), 8 mg), which is superior to most of the reported COF-based photocatalysts. The framework nanoshell in this work may stimulate the thinking about how to design advanced shell architecture in the core-shell structured photocatalysts to achieve coordinated charge and molecule transport. |
format | Online Article Text |
id | pubmed-8356126 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | AAAS |
record_format | MEDLINE/PubMed |
spelling | pubmed-83561262021-08-16 On-Surface Bottom-Up Construction of COF Nanoshells towards Photocatalytic H(2) Production Chen, Yao Yang, Dong Gao, Yuchen Li, Runlai An, Ke Wang, Wenjing Zhao, Zhanfeng Xin, Xin Ren, Hanjie Jiang, Zhongyi Research (Wash D C) Research Article The rational design of an outer shell is of great significance to promote the photocatalytic efficiency of core-shell structured photocatalysts. Herein, a covalent organic framework (COF) nanoshell was designed and deposited on the cadmium sulfide (CdS) core surface. A typical COF material, TPPA, featuring exceptional stability, was synthesized through interfacial polymerization using 1, 3, 5-triformylphloroglucinol (TP) and p-phenylenediamine (PA) as monomers. The nanoshell endows the CdS@TPPA nanosphere with ordered channels for unimpeded light-harvesting and fast diffusion of reactants/products and well-defined modular building blocks for spatially charge separation. Moreover, the heterojunction formed between CdS and TPPA can further facilitate the effective charge separation at the interface via lower exciton binding energy compared with that of pristine TPPA. By modulating the thickness of TPPA nanoshell, the CdS@TPPA nanosphere photocatalyst with the nanoshell thickness of about 8 ± 1 nm exhibits the highest photocatalytic H(2) evolution of 194.1 μmol h(−1) (24.3 mmol g(−1) h(−1), 8 mg), which is superior to most of the reported COF-based photocatalysts. The framework nanoshell in this work may stimulate the thinking about how to design advanced shell architecture in the core-shell structured photocatalysts to achieve coordinated charge and molecule transport. AAAS 2021-08-02 /pmc/articles/PMC8356126/ /pubmed/34405143 http://dx.doi.org/10.34133/2021/9798564 Text en Copyright © 2021 Yao Chen et al. https://creativecommons.org/licenses/by/4.0/Exclusive Licensee Science and Technology Review Publishing House. Distributed under a Creative Commons Attribution License (CC BY 4.0). |
spellingShingle | Research Article Chen, Yao Yang, Dong Gao, Yuchen Li, Runlai An, Ke Wang, Wenjing Zhao, Zhanfeng Xin, Xin Ren, Hanjie Jiang, Zhongyi On-Surface Bottom-Up Construction of COF Nanoshells towards Photocatalytic H(2) Production |
title | On-Surface Bottom-Up Construction of COF Nanoshells towards Photocatalytic H(2) Production |
title_full | On-Surface Bottom-Up Construction of COF Nanoshells towards Photocatalytic H(2) Production |
title_fullStr | On-Surface Bottom-Up Construction of COF Nanoshells towards Photocatalytic H(2) Production |
title_full_unstemmed | On-Surface Bottom-Up Construction of COF Nanoshells towards Photocatalytic H(2) Production |
title_short | On-Surface Bottom-Up Construction of COF Nanoshells towards Photocatalytic H(2) Production |
title_sort | on-surface bottom-up construction of cof nanoshells towards photocatalytic h(2) production |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8356126/ https://www.ncbi.nlm.nih.gov/pubmed/34405143 http://dx.doi.org/10.34133/2021/9798564 |
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