Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김기현 | - |
dc.date.accessioned | 2022-11-14T05:49:07Z | - |
dc.date.available | 2022-11-14T05:49:07Z | - |
dc.date.issued | 2021-06 | - |
dc.identifier.citation | CHEMICAL ENGINEERING JOURNAL, v. 413, article no. 127389, Page. 1-8 | en_US |
dc.identifier.issn | 1385-8947;1873-3212 | en_US |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S1385894720335130?via%3Dihub | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/176736 | - |
dc.description.abstract | The potential of oxygen vacancies (OVs) has been demonstrated in controlling photocatalytic activities by altering the electronic and/or band structures of photocatalysts. The effects of oxygen vacancies on photocatalytic reaction processes are yet unclear. In this work, indium oxyhydroxide (InOOH), well known as a wide band p-block metal compound with OVs, was synthesized through a one-pot solvothermal method to explore the roles of OVs in photocatalytic oxidation and ring opening of toluene. The defect level introduced by OVs enhanced light absorption and charge carrier separation, while promoting the activation of reactants to generate active oxygen species. As such, the modified InOOH was validated to enhance the photocatalytic performance by lowering the reaction energy barrier of the key intermediates during toluene oxidation (relative to the pristine InOOH). More strikingly, the energy barrier for the formation of benzoic acid was reduced with the increasing number of OVs on InOOH (accompanied by the increases in the ring opening reaction rates), in line with the results derived from the in situ DRIFTS investigation and theoretical calculation. Accordingly, it is possible to explain the mechanism regulating the photocatalytic oxidation of toluene on defective InOOH. This work could provide an electronic insight into oxygen vacancy engineering as a new strategy to enhance the photocatalytic selectivity and activity for VOC degradation. | en_US |
dc.description.sponsorship | This work was supported by the National Natural Science Foundation of China (21822601 and 21777011) , the Innovative Research Team of Chongqing (CXQT19023) , the Natural Science Foundation of Chongqing (cstc2017jcyjBX0052) , the 111 Project (B20030) , the Plan for "National Youth Talents" of the Organization Department of the Central Committee, and the Scientific Platform Project, Ministry of Education (fykf201913) . The authors also acknowledge AM-HPC in Suzhou, China for computational support. KHK acknowledges support through a grant from the National Research Foundation of Korea (NRF) , funded by the Ministry of Science, ICT & Future Planning (Grant No: 2016R1E1A1A01940995) . | en_US |
dc.language | en | en_US |
dc.publisher | ELSEVIER SCIENCE SA | en_US |
dc.subject | Oxygen vacancy | en_US |
dc.subject | Toluene oxidation | en_US |
dc.subject | InOOH | en_US |
dc.subject | In situ DRIFTS | en_US |
dc.subject | DFT | en_US |
dc.title | High-efficiency photocatalytic decomposition of toluene over defective InOOH: Promotive role of oxygen vacancies in ring opening process | en_US |
dc.type | Article | en_US |
dc.relation.volume | 413 | - |
dc.identifier.doi | 10.1016/j.cej.2020.127389 | en_US |
dc.relation.page | 1-8 | - |
dc.relation.journal | CHEMICAL ENGINEERING JOURNAL | - |
dc.contributor.googleauthor | Li, Kanglu | - |
dc.contributor.googleauthor | Lei, Ben | - |
dc.contributor.googleauthor | Ran, Maoxi | - |
dc.contributor.googleauthor | Sun, Yanjuan | - |
dc.contributor.googleauthor | Zhang, Yuxin | - |
dc.contributor.googleauthor | Kim, Ki-Hyun | - |
dc.contributor.googleauthor | Dong, Fan | - |
dc.contributor.googleauthor | Li, Jiarui | - |
dc.sector.campus | S | - |
dc.sector.daehak | 공과대학 | - |
dc.sector.department | 건설환경공학과 | - |
dc.identifier.pid | kkim61 | - |
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