Ultrasonically dispersed ultrathin g-C3N4 nanosheet/BaBi2Nb2O9 heterojunction photocatalysts for efficient photocatalytic degradation of organic pollutant
DC Field | Value | Language |
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dc.contributor.author | Phadtare, V.D. | - |
dc.contributor.author | Parale, V.G. | - |
dc.contributor.author | Kim, Taehee | - |
dc.contributor.author | Lee, Kyu-Yeon | - |
dc.contributor.author | Kadam, A.N. | - |
dc.contributor.author | Choi, Haryeong | - |
dc.contributor.author | Kim, Younghun | - |
dc.contributor.author | Dhavale, R.P. | - |
dc.contributor.author | Lee, Sang-Wha | - |
dc.contributor.author | Park, Hyung-Ho | - |
dc.date.accessioned | 2021-09-02T02:40:11Z | - |
dc.date.available | 2021-09-02T02:40:11Z | - |
dc.date.created | 2021-08-13 | - |
dc.date.issued | 2021-12-05 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/82009 | - |
dc.description.abstract | Here, we present new graphite-like C3N4 (g-C3N4)/BaBi2Nb2O9 composites with remarkable photocatalytic activities under solar light irradiation that were prepared by a facile ultrasonic dispersion method. A heterojunction was formed with Aurivillius type BaBi2Nb2O9 particles and ultrathin g-C3N4 nanosheets, and this composite material was characterized by using several techniques. The ultrathin g-C3N4 nanosheets promoted extensive contact in the heterojunction, as observed by morphological analyses. Moreover, the as-synthesized ultrathin g-C3N4 nanosheets are highly porous with a specific surface area of 141 m2/g. The BaBi2Nb2O9 particles strongly absorb ultraviolet (UV) light whereas, by comparison, g-C3N4 absorbs visible light more effectively, as established by diffuse reflectance spectroscopy DRS analysis. These properties substantially improved the capacity of the as-fabricated g-C3N4/BaBi2Nb2O9 heterojunction to photocatalytically degrade the organic dye Rhodamine B (RhB) under simulated solar light and 40 W UV–visible light irradiation, versus either of the separate components of the heterojunction. Specifically, an optimal composite with approximately 30 wt% BaBi2Nb2O9 content exhibits an apparent reaction rate 0.02056 min−1 for RhB photodegradation under simulated solar light, which was nearly 1.5- and 4.3-fold higher than that of the pristine g-C3N4 and BaBi2Nb2O9 photocatalysts, respectively. In addition, the same composite had an apparent reaction rate of 0.0155 min−1 for RhB photodegradation under 40 W UV-Vis light irradiation, which was approximately 1.4- and 2.8-fold higher than the pristine components. These functionalities are also supported by photoluminescence spectroscopy analyses and photocurrent responses, which indicate a photosynergistic effect for the g-C3N4/BaBi2Nb2O9 heterojunction that enhances photoinduced interfacial charge transfer. © 2021 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.relation.isPartOf | Journal of Alloys and Compounds | - |
dc.title | Ultrasonically dispersed ultrathin g-C3N4 nanosheet/BaBi2Nb2O9 heterojunction photocatalysts for efficient photocatalytic degradation of organic pollutant | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000686600400003 | - |
dc.identifier.doi | 10.1016/j.jallcom.2021.161037 | - |
dc.identifier.bibliographicCitation | Journal of Alloys and Compounds, v.884 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85111789287 | - |
dc.citation.title | Journal of Alloys and Compounds | - |
dc.citation.volume | 884 | - |
dc.contributor.affiliatedAuthor | Kadam, A.N. | - |
dc.contributor.affiliatedAuthor | Lee, Sang-Wha | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Degradation mechanism | - |
dc.subject.keywordAuthor | g-C3N4/BaBi2Nb2O9 heterojunction | - |
dc.subject.keywordAuthor | Ultrasonic dispersion | - |
dc.subject.keywordAuthor | Ultrathin nanosheets | - |
dc.subject.keywordAuthor | UV–visible light Photocatalysis | - |
dc.subject.keywordPlus | Barium compounds | - |
dc.subject.keywordPlus | Bismuth compounds | - |
dc.subject.keywordPlus | Heterojunctions | - |
dc.subject.keywordPlus | Irradiation | - |
dc.subject.keywordPlus | Nanosheets | - |
dc.subject.keywordPlus | Niobium compounds | - |
dc.subject.keywordPlus | Organic pollutants | - |
dc.subject.keywordPlus | Photocatalytic activity | - |
dc.subject.keywordPlus | Photodegradation | - |
dc.subject.keywordPlus | Photoluminescence spectroscopy | - |
dc.subject.keywordPlus | Reaction rates | - |
dc.subject.keywordPlus | Rhodium compounds | - |
dc.subject.keywordPlus | Degradation mechanism | - |
dc.subject.keywordPlus | G-C3N4/babi2nb2O9 heterojunction | - |
dc.subject.keywordPlus | Photo catalytic degradation | - |
dc.subject.keywordPlus | Photo degradation | - |
dc.subject.keywordPlus | Reactions rates | - |
dc.subject.keywordPlus | Rhodamine-B | - |
dc.subject.keywordPlus | Simulated solar light | - |
dc.subject.keywordPlus | Ultra-thin | - |
dc.subject.keywordPlus | Ultrathin nanosheets | - |
dc.subject.keywordPlus | Ultraviolet–visible light photocatalyse | - |
dc.subject.keywordPlus | Light | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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