Unexpected discovery of superoxide radical generation by oxygen vacancies containing biomass derived granular activated carbon
DC Field | Value | Language |
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dc.contributor.author | Choong, Choe Earn | - |
dc.contributor.author | Wong, Kien Tiek | - |
dc.contributor.author | Kim, Hyeseong | - |
dc.contributor.author | Jang, Seok Byum | - |
dc.contributor.author | Yoon, So Yeon | - |
dc.contributor.author | Nah, In Wook | - |
dc.contributor.author | Kim, Wooyul | - |
dc.contributor.author | Kim, Sang-Hyoun | - |
dc.contributor.author | Jeon, Byong-Hun | - |
dc.contributor.author | Yoon, Yeomin | - |
dc.contributor.author | Jang, Min | - |
dc.date.accessioned | 2023-11-08T13:50:39Z | - |
dc.date.available | 2023-11-08T13:50:39Z | - |
dc.date.issued | 2021-02-15 | - |
dc.identifier.issn | 0043-1354 | - |
dc.identifier.issn | 1879-2448 | - |
dc.identifier.uri | https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/153158 | - |
dc.description.abstract | l Herein, we discovered and reported oxygen vacancies in silicon oxycarbide containing granular palm shell activated carbon (Si-PSAC) as a photocatalyst under UV irradiation. A strong correlation between the atomic content of Si1+, oxygen vacancies and photocatalytic performance of Si-PSAC was obtained. Based on the electron paramagnetic resonance and photoluminescence analyses, Si-PSAC under UVA(365) irradiation exhibited a higher donor density, better charge transfer and lower electron-hole recombination than that under the other light sources, leading to a higher O-2(center dot-) production efficiency. Si-PSAC exhibited effective removal performance for various anionic dyes and endocrine-disrupting chemicals under UVA(365) irradiation. Continuous-flow column tests revealed the life span of Si-PSAC under UVA(365) irradiation was extended by more than 16-fold compared to adsorption column. Since the oxygen vacancies can be created from the naturally present Si in the biomass derived Si-PSAC during the activation, this unexpected discovery of O-2(center dot-) production can extend commercially-available Si-PSAC into the full-scale photocatalysis. (c) 2020 Elsevier Ltd. All rights reserved. | - |
dc.format.extent | 11 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Unexpected discovery of superoxide radical generation by oxygen vacancies containing biomass derived granular activated carbon | - |
dc.type | Article | - |
dc.publisher.location | 영국 | - |
dc.identifier.doi | 10.1016/j.watres.2020.116757 | - |
dc.identifier.scopusid | 2-s2.0-85098072933 | - |
dc.identifier.wosid | 000632807700064 | - |
dc.identifier.bibliographicCitation | WATER RESEARCH, v.190, pp 1 - 11 | - |
dc.citation.title | WATER RESEARCH | - |
dc.citation.volume | 190 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 11 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalResearchArea | Water Resources | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.relation.journalWebOfScienceCategory | Water Resources | - |
dc.subject.keywordPlus | METHYLENE-BLUE | - |
dc.subject.keywordPlus | TIO2 | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | PHOTOCATALYST | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | COATINGS | - |
dc.subject.keywordAuthor | Granular palm shell activated carbon | - |
dc.subject.keywordAuthor | Oxygen vacancies | - |
dc.subject.keywordAuthor | Superoxide radical | - |
dc.subject.keywordAuthor | Adsorption | - |
dc.subject.keywordAuthor | Photocatalyst | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/abs/pii/S0043135420312902?via%3Dihub | - |
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