DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Jeonga | ko |
dc.contributor.author | Lee, Kimoon | ko |
dc.contributor.author | Choi, Saehan | ko |
dc.contributor.author | Jo, Nyeongbeen | ko |
dc.contributor.author | Nam, Yoon Sung | ko |
dc.date.accessioned | 2024-09-03T05:00:06Z | - |
dc.date.available | 2024-09-03T05:00:06Z | - |
dc.date.created | 2024-08-29 | - |
dc.date.issued | 2024-05 | - |
dc.identifier.citation | CHEMISTRY OF MATERIALS, v.36, no.10, pp.5037 - 5049 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | http://hdl.handle.net/10203/322553 | - |
dc.description.abstract | Carbon nitride (CN) has emerged as a promising photocatalyst, recognized for its visible-light sensitivity, high conduction band-edge position, tunable electronic configuration, and environmental friendliness. Despite these attributes, the practical application of CN is hindered by challenges such as inefficient charge carrier separation, a narrow light absorption range, and inherent n-type characteristics due to nonstoichiometry. Here, we introduce a new postsynthetic functionalization strategy that modifies CN with catechol quinone (CQ) to substantially improve its photocatalytic performance through light-induced electron polarization and extended light absorption. The key mechanism involves promoted spatial charge separation at the CN-CQ interface, leveraging the light-triggered oscillation of CQ between its electron donor and acceptor states, corroborated by density functional theory calculations. Moreover, CN-CQ conjugation broadens the photoactive range of CN across the full spectrum of visible light due to lower-energy electronic excitations arising from the midgap states introduced by CQ. Under sunlight illumination, the CN-CQ conjugation increased the photocatalytic activities of CN 2-fold for photochemical gold ion reduction and hydrogen evolution. Our findings suggest that postsynthetic functionalization with a redox-active moiety is a promising strategy for enhancing the photocatalytic activity of CN. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Catechol Quinone as an Electron-Shuttling Spot Conjugated to Graphitic Carbon Nitride for Enhancing Photocatalytic Reduction | - |
dc.type | Article | - |
dc.identifier.wosid | 001225899100001 | - |
dc.identifier.scopusid | 2-s2.0-85193428047 | - |
dc.type.rims | ART | - |
dc.citation.volume | 36 | - |
dc.citation.issue | 10 | - |
dc.citation.beginningpage | 5037 | - |
dc.citation.endingpage | 5049 | - |
dc.citation.publicationname | CHEMISTRY OF MATERIALS | - |
dc.identifier.doi | 10.1021/acs.chemmater.4c00113 | - |
dc.contributor.localauthor | Nam, Yoon Sung | - |
dc.contributor.nonIdAuthor | Lee, Kimoon | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | HYDROGEN | - |
dc.subject.keywordPlus | STATE | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | CHEMISTRY | - |
dc.subject.keywordPlus | EVOLUTION | - |
dc.subject.keywordPlus | CATALYSIS | - |
dc.subject.keywordPlus | CHARGE SEPARATION | - |
dc.subject.keywordPlus | COMPLEX | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | OXYGEN | - |
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