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DC Field | Value | Language |
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dc.citation.endPage | 296 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 289 | - |
dc.citation.title | PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL | - |
dc.citation.volume | 27 | - |
dc.contributor.author | Lim, Hankwon | - |
dc.contributor.author | Rawal, Sher Bahadur | - |
dc.date.accessioned | 2023-12-21T22:09:45Z | - |
dc.date.available | 2023-12-21T22:09:45Z | - |
dc.date.created | 2018-07-31 | - |
dc.date.issued | 2017-06 | - |
dc.description.abstract | An integrated Bi2O3 (i-Bi2O3) nanostructure with a particle size 10 nm inducing agglomerated structure were synthesized by dissolving bismuth nitrate pentahydrate in diethylene glycol at 180 degrees C with post heat treatment. The prepared i-Bi2O3 nanostructures were employed for the construction of Au/i-Bi2O3 composite system and characterized by X-ray diffraction pattern, UV-visible diffuse reflectance spectroscopy (DRS), and transmission electron microscopy, X-ray photoemission spectroscopy (XPS) and Energy dispersive X-ray spectroscopy (EDS). The i-Bi2O3 nanostructure and Au/i-Bi2O3 composite system were found to exhibit high photocatalytic activity than commercial Bi2O3 in decomposing salicylic acid under visible light irradiation. The high catalytic activity of i-Bi2O3 nanostructure was deduced to be caused by charge separation facilitated by electron hopping between the particles within the integrated structure and space-charge separation between i-Bi2O3 and Au. The charge separation behavior in i-Bi2O3 nanostructure was further bolstered by comparing the measured. OH radical produced in the solution with i-Bi2O3 nanostructure, commercial Bi2O3 and Au/i-Bi2O3 composite which readily react with 1,4-terephthalic acid (TA) inducing 2-hydroxy terephthalic acid (TAOH) that shows unique fluorescence peak at 426 nm. The space-charge separation between i-Bi2O3 and Au was confirmed by measuring the electron spin resonance (ESR) spectra. | - |
dc.identifier.bibliographicCitation | PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL, v.27, no.3, pp.289 - 296 | - |
dc.identifier.doi | 10.1016/j.pnsc.2017.04.003 | - |
dc.identifier.issn | 1002-0071 | - |
dc.identifier.scopusid | 2-s2.0-85019705375 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/24485 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S1002007117303143?via%3Dihub | - |
dc.identifier.wosid | 000407297000001 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE INC | - |
dc.title | Integrated Bi2O3 nanostructure modified with Au nanoparticles for enhanced photocatalytic activity under visible light irradiation | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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