Synergistic photocatalysis of Z-scheme type Fe2O3/g-C3N4 heterojunction coupled with reduced graphene oxide
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Soo Hyun | - |
dc.contributor.author | Kim, Taelin | - |
dc.contributor.author | Kadam, Abhijit N. | - |
dc.contributor.author | Bathula, Chinna | - |
dc.contributor.author | Ghfar, Ayman A. | - |
dc.contributor.author | Kim, Hansang | - |
dc.contributor.author | Lee, Sang-Wha | - |
dc.date.accessioned | 2022-11-20T02:40:10Z | - |
dc.date.available | 2022-11-20T02:40:10Z | - |
dc.date.created | 2022-05-04 | - |
dc.date.issued | 2022-06 | - |
dc.identifier.issn | 2468-0230 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/86127 | - |
dc.description.abstract | The rational design of a Z-scheme heterojunction that appropriately connects two semiconductors with different bandgap with matched energies is of great significance for the efficient separation of charge carries and maximum solar-light harvesting. Furthermore, achieving a morphologically controlled, an easily synthesized, and an effective solar-light-driven photocatalyst still presents a significant challenge. Firstly, one-step hydrothermal method was used to facilely synthesize C-Fe2O3@rGO by incorporating cubic shape hematite (C-Fe2O3) with reduced graphene oxide (rGO). Then, graphitic carbon nitride (g-C3N4) was combined with C-Fe2O3@rGO via a solvothermal reaction, which resulted in the ternary heterojunction of C-Fe2O3@rGO@g-C3N4. Under exposer of simulated solar light, the photocatalytic performance of the constructed materials was assessed towards the destruction of methyl orange (MO) organic contaminant. For comparison, C-Fe2O3 and C-Fe2O3@rGO exhibited a very low photocatalytic activity, with degradation efficiencies of MO dye as 1% and 8%, respectively. In contrast, C-Fe2O3@rGO@g-C3N4 (5.0 wt.% g-C3N4) demonstrated a significantly greater photocatalytic efficiency of ∼40%, due to the formation of a ternary heterojunction. This structure ensures enhanced separation of charge carriers and extended solar-light harvesting. Strikingly, in the existence of a hole scavenger, C-Fe2O3@rGO@g-C3N4 had a significantly increased photocatalytic efficiency of 93%. The rate constants were 1.6 × 10−4 and 1.1 × 10−3 min−1before and after adding the hole scavenger EDTA-2Na, respectively. This result clearly confirms the successful formation of a Z-scheme nature heterojunction composed of two semiconductors (Fe2O3 and g-C3N4) and conductive rGO. This synthetic approach can provide a guideline for the rational engineering as well as facile fabrications Z-scheme systems devoid of noble metals for advanced photocatalytic applications. © 2022 | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Elsevier | - |
dc.relation.isPartOf | Surfaces and Interfaces | - |
dc.title | Synergistic photocatalysis of Z-scheme type Fe2O3/g-C3N4 heterojunction coupled with reduced graphene oxide | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000880572700001 | - |
dc.identifier.doi | 10.1016/j.surfin.2022.101910 | - |
dc.identifier.bibliographicCitation | Surfaces and Interfaces, v.30 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85127171573 | - |
dc.citation.title | Surfaces and Interfaces | - |
dc.citation.volume | 30 | - |
dc.contributor.affiliatedAuthor | Park, Soo Hyun | - |
dc.contributor.affiliatedAuthor | Kim, Taelin | - |
dc.contributor.affiliatedAuthor | Kadam, Abhijit N. | - |
dc.contributor.affiliatedAuthor | Kim, Hansang | - |
dc.contributor.affiliatedAuthor | Lee, Sang-Wha | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Cubic hematite | - |
dc.subject.keywordAuthor | Graphitic carbon nitride | - |
dc.subject.keywordAuthor | Hydrothermal | - |
dc.subject.keywordAuthor | Reduced graphene oxide | - |
dc.subject.keywordAuthor | Z-scheme heterojunction | - |
dc.subject.keywordPlus | CARBON NITRIDE NANOSHEETS | - |
dc.subject.keywordPlus | G-C3N4 | - |
dc.subject.keywordPlus | TIO2 | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ALPHA-FE2O3 | - |
dc.subject.keywordPlus | ACTIVATION | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | DRIVEN | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
1342, Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, Republic of Korea(13120)031-750-5114
COPYRIGHT 2020 Gachon University All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.