Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 양인상 | - |
dc.date.accessioned | 2016-08-28T12:08:05Z | - |
dc.date.available | 2016-08-28T12:08:05Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 1533-4880 | - |
dc.identifier.other | OAK-7851 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/221853 | - |
dc.description.abstract | To extend the light absorption of TiO 2-based photocatalysts towards the visible-light range and to eliminate the rapid recombination of excited electrons/holes during photoreaction, a new type of photocatalyst (N-doped TiO 2) powder was prepared through a simple sol-gel process. The crystal phase composition, structure, and light absorption of the new photocatalyst were comprehensively examined via X-ray diffraction, ultraviolet-visible (UV-Vis) absorption spectroscopy, and atomic-absorption spectroscopy. The photo-oxidation efficiency of the photocatalyst was also evaluated in the photodegradation of methylene blue (MB) and of phenol in aqueous solutions under visible-light irradiation from a neon lamp (λ > 400 nm). The results of the analyses that were performed in this study indicated that the N-doped TiO 2 could eliminate the electron/holes recombination and could increase the light absorption in the visible range. The results of the analysis of the UV-Vis diffuse reflection and optical-absorption spectra indicated that a new energy level below 3.2 eV generated in the N-doped TiO 2 promoted the optical absorption in the visible-light region and made visible-light excitation possible (E < 3.2 eV). The experiment demonstrated that the photo-oxidation efficiency of MB when N-doped TiO 2 powder was used was significantly higher than that when the conventional TiO 2 powders were used. The development of such photocatalyst may be considered a breakthrough in the large-scale utilization of solar energy to address the current and future environmental needs. Copyright © 2011 American Scientific Publishers All rights reserved. | - |
dc.language | English | - |
dc.title | Synthesis and characterization of the N-doped TiO 2 photocatalyst for the photodegradation of methylene blue and phenol | - |
dc.type | Conference Paper | - |
dc.relation.issue | 7 | - |
dc.relation.volume | 11 | - |
dc.relation.index | SCI | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.startpage | 6494 | - |
dc.relation.lastpage | 6498 | - |
dc.relation.journaltitle | Journal of Nanoscience and Nanotechnology | - |
dc.identifier.doi | 10.1166/jnn.2011.4508 | - |
dc.identifier.wosid | WOS:000293663200168 | - |
dc.identifier.scopusid | 2-s2.0-84856886731 | - |
dc.author.google | Khang N.C. | - |
dc.author.google | Minh N.V. | - |
dc.author.google | Yang I.-S. | - |
dc.contributor.scopusid | 양인상(7101797839) | - |
dc.date.modifydate | 20230210140835 | - |