dc.contributor.author | Zheng, Mengting | |
dc.contributor.author | Xing, Chao | |
dc.contributor.author | Zhang, Weiping | |
dc.contributor.author | Cheng, Zhiliang | |
dc.contributor.author | Liu, Xianhu | |
dc.contributor.author | Zhang, Shanqing | |
dc.date.accessioned | 2020-12-20T23:22:59Z | |
dc.date.available | 2020-12-20T23:22:59Z | |
dc.date.issued | 2020 | |
dc.identifier.issn | 1387-7003 | |
dc.identifier.doi | 10.1016/j.inoche.2020.108040 | |
dc.identifier.uri | http://hdl.handle.net/10072/400418 | |
dc.description.abstract | Hematite (α-Fe2O3) has been widely used as a photocatalyst for photo-Fenton oxidation due to its low cost, environmental friendliness, and high efficiency. The Photo-Fenton oxidation performance can be improved for practical applications via bandgap engineering of the photocatalyst. Herein, hematite nanoplate (HNP) is synthesized via a solvothermal method and a hydrogenation treatment, resulting in hydrogenated HNP (H-HNP). Materials characterizations demonstrate the even distribution of oxygen vacancies, formation of Fe (II) species on H-HNP, the enhanced light absorption, and separation of photogenerated e−/h+ pairs. Under simulated solar light, in comparison with pristine HNP, the H-HNP delivered significantly higher photo-Fenton oxidation activities under near-neutral pH conditions for the degradation of 50 mg L−1 Rhodamine B, Congo red, and Methylene blue after 20 min, i.e., 92.7%, 98.2%, and 77.2%, respectively. Mechanistic explorations, including XPS and radical trapping analysis, suggest that positively charged holes (h+) and catalytically formed hydroxyl radicals ([rad]OH) were the main factors contributing to the higher photo-Fenton oxidation performance of H-HNP. Overall, hydrogenation treatment is an easy and effective means for bandgap engineering to improve the photocatalytic performance of photocatalysts as demonstrated by the as-prepared H-HNP as a high-performance photocatalyst for the photo-Fenton oxidation reaction. | |
dc.description.peerreviewed | Yes | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | Elsevier | |
dc.relation.ispartofpagefrom | 108040 | |
dc.relation.ispartofjournal | Inorganic Chemistry Communications | |
dc.relation.ispartofvolume | 119 | |
dc.subject.fieldofresearch | Inorganic chemistry | |
dc.subject.fieldofresearch | Other chemical sciences | |
dc.subject.fieldofresearchcode | 3402 | |
dc.subject.fieldofresearchcode | 3499 | |
dc.subject.keywords | Science & Technology | |
dc.subject.keywords | Physical Sciences | |
dc.subject.keywords | Chemistry, Inorganic & Nuclear | |
dc.subject.keywords | Hydrogenation | |
dc.title | Hydrogenated hematite nanoplates for enhanced photocatalytic and photo-Fenton oxidation of organic compounds | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dcterms.bibliographicCitation | Zheng, M; Xing, C; Zhang, W; Cheng, Z; Liu, X; Zhang, S, Hydrogenated hematite nanoplates for enhanced photocatalytic and photo-Fenton oxidation of organic compounds, Inorganic Chemistry Communications, 2020, 119, pp. 108040 | |
dc.date.updated | 2020-12-20T23:21:12Z | |
gro.hasfulltext | No Full Text | |
gro.griffith.author | Zhang, Shanqing | |