Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 윤여민 | * |
dc.date.accessioned | 2023-12-18T16:31:28Z | - |
dc.date.available | 2023-12-18T16:31:28Z | - |
dc.date.issued | 2023 | * |
dc.identifier.issn | 0169-4332 | * |
dc.identifier.other | OAK-33999 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/266622 | - |
dc.description.abstract | Herein, we prepared CeO2 with varying concentrations of oxygen vacancies (Ov) and investigated the effects of the Ov concentration and photoinduced electron transfer (PET) on O3 activation under visible-light-driven (VLD) photocatalytic-ozonation (PO) for removal of oxalic acid (OA). Density functional theory calculations showed the formation of Ov reduced the bandgap of CeO2, leading to region around the Ce atom with a low adsorption energy barrier toward O3. Notably, no distinct linear correlation was found between the Ov concentration and VLD-PO activity. This implies that CeO2 with a lower amount of Ov (14.64%) exhibits better PET and higher photoexcited electron density than CeO2 with a relatively higher Ov (17.62%), suggesting that the PET properties of CeO2 are crucial for the Ov regeneration and O3 activation and conversion for OA removal. Electric energy per order (EEO) for VLD-PO using CeOx(7 0 0) was 6.94 kWh m−3 order−1. Additionally, bioassay experiments with Daphnia Magna showed toxicity reduction in the PO-treated effluent and continuous-flow experiments (CFEs) proved that VLD-PO could effectively remediate the toxic and refractory micropollutants containing water. The study findings can promote the application of PO systems in water treatment for treating organic pollutants. © 2023 | * |
dc.language | English | * |
dc.publisher | Elsevier B.V. | * |
dc.subject | Advanced oxidation processes | * |
dc.subject | Cerium oxide | * |
dc.subject | Photocatalytic ozonation | * |
dc.subject | Photoinduced electron transfer | * |
dc.subject | Toxicity | * |
dc.title | New insight into the visible-light-driven photoinduced electron transfer mechanism for ozone activation over defective sites of ceria for organic compounds destruction | * |
dc.type | Article | * |
dc.relation.volume | 639 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | Applied Surface Science | * |
dc.identifier.doi | 10.1016/j.apsusc.2023.158125 | * |
dc.identifier.wosid | WOS:001061445000001 | * |
dc.identifier.scopusid | 2-s2.0-85167453540 | * |
dc.author.google | Kim | * |
dc.author.google | Min Ji | * |
dc.author.google | Wong | * |
dc.author.google | Kien Tiek | * |
dc.author.google | Minhee | * |
dc.author.google | Choong | * |
dc.author.google | Choe Earn | * |
dc.author.google | Nah | * |
dc.author.google | In Wook | * |
dc.author.google | Yoon | * |
dc.author.google | Yeomin | * |
dc.author.google | Choi | * |
dc.author.google | Eun Ha | * |
dc.author.google | Jang | * |
dc.author.google | Min | * |
dc.contributor.scopusid | 윤여민(7402126688) | * |
dc.date.modifydate | 20240322132249 | * |