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Graphitic carbon nitride prepared from urea as a photocatalyst for visible-light carbon dioxide reduction with the aid of a mononuclear ruthenium(II) complex
Graphitic carbon nitride (g-C(3)N(4)) was synthesized by heating urea at different temperatures (773–923 K) in air, and was examined as a photocatalyst for CO(2) reduction. With increasing synthesis temperature, the conversion of urea into g-C(3)N(4) was facilitated, as confirmed by X-ray diffractio...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Beilstein-Institut
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6071697/ https://www.ncbi.nlm.nih.gov/pubmed/30112084 http://dx.doi.org/10.3762/bjoc.14.153 |
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author | Maeda, Kazuhiko An, Daehyeon Kuriki, Ryo Lu, Daling Ishitani, Osamu |
author_facet | Maeda, Kazuhiko An, Daehyeon Kuriki, Ryo Lu, Daling Ishitani, Osamu |
author_sort | Maeda, Kazuhiko |
collection | PubMed |
description | Graphitic carbon nitride (g-C(3)N(4)) was synthesized by heating urea at different temperatures (773–923 K) in air, and was examined as a photocatalyst for CO(2) reduction. With increasing synthesis temperature, the conversion of urea into g-C(3)N(4) was facilitated, as confirmed by X-ray diffraction, FTIR spectroscopy and elemental analysis. The as-synthesized g-C(3)N(4) samples, further modified with Ag nanoparticles, were capable of reducing CO(2) into formate under visible light (λ > 400 nm) in the presence of triethanolamine as an electron donor, with the aid of a molecular Ru(II) cocatalyst (RuP). The CO(2) reduction activity was improved by increasing the synthesis temperature of g-C(3)N(4), with the maximum activity obtained at 873–923 K. This trend was also consistent with that observed in photocatalytic H(2) evolution using Pt-loaded g-C(3)N(4). The photocatalytic activities of RuP/g-C(3)N(4) for CO(2) reduction and H(2) evolution were thus shown to be strongly associated with the generation of the crystallized g-C(3)N(4) phase. |
format | Online Article Text |
id | pubmed-6071697 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-60716972018-08-15 Graphitic carbon nitride prepared from urea as a photocatalyst for visible-light carbon dioxide reduction with the aid of a mononuclear ruthenium(II) complex Maeda, Kazuhiko An, Daehyeon Kuriki, Ryo Lu, Daling Ishitani, Osamu Beilstein J Org Chem Full Research Paper Graphitic carbon nitride (g-C(3)N(4)) was synthesized by heating urea at different temperatures (773–923 K) in air, and was examined as a photocatalyst for CO(2) reduction. With increasing synthesis temperature, the conversion of urea into g-C(3)N(4) was facilitated, as confirmed by X-ray diffraction, FTIR spectroscopy and elemental analysis. The as-synthesized g-C(3)N(4) samples, further modified with Ag nanoparticles, were capable of reducing CO(2) into formate under visible light (λ > 400 nm) in the presence of triethanolamine as an electron donor, with the aid of a molecular Ru(II) cocatalyst (RuP). The CO(2) reduction activity was improved by increasing the synthesis temperature of g-C(3)N(4), with the maximum activity obtained at 873–923 K. This trend was also consistent with that observed in photocatalytic H(2) evolution using Pt-loaded g-C(3)N(4). The photocatalytic activities of RuP/g-C(3)N(4) for CO(2) reduction and H(2) evolution were thus shown to be strongly associated with the generation of the crystallized g-C(3)N(4) phase. Beilstein-Institut 2018-07-17 /pmc/articles/PMC6071697/ /pubmed/30112084 http://dx.doi.org/10.3762/bjoc.14.153 Text en Copyright © 2018, Maeda et al. https://creativecommons.org/licenses/by/4.0https://www.beilstein-journals.org/bjoc/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0). Please note that the reuse, redistribution and reproduction in particular requires that the authors and source are credited. The license is subject to the Beilstein Journal of Organic Chemistry terms and conditions: (https://www.beilstein-journals.org/bjoc/terms) |
spellingShingle | Full Research Paper Maeda, Kazuhiko An, Daehyeon Kuriki, Ryo Lu, Daling Ishitani, Osamu Graphitic carbon nitride prepared from urea as a photocatalyst for visible-light carbon dioxide reduction with the aid of a mononuclear ruthenium(II) complex |
title | Graphitic carbon nitride prepared from urea as a photocatalyst for visible-light carbon dioxide reduction with the aid of a mononuclear ruthenium(II) complex |
title_full | Graphitic carbon nitride prepared from urea as a photocatalyst for visible-light carbon dioxide reduction with the aid of a mononuclear ruthenium(II) complex |
title_fullStr | Graphitic carbon nitride prepared from urea as a photocatalyst for visible-light carbon dioxide reduction with the aid of a mononuclear ruthenium(II) complex |
title_full_unstemmed | Graphitic carbon nitride prepared from urea as a photocatalyst for visible-light carbon dioxide reduction with the aid of a mononuclear ruthenium(II) complex |
title_short | Graphitic carbon nitride prepared from urea as a photocatalyst for visible-light carbon dioxide reduction with the aid of a mononuclear ruthenium(II) complex |
title_sort | graphitic carbon nitride prepared from urea as a photocatalyst for visible-light carbon dioxide reduction with the aid of a mononuclear ruthenium(ii) complex |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6071697/ https://www.ncbi.nlm.nih.gov/pubmed/30112084 http://dx.doi.org/10.3762/bjoc.14.153 |
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