Synthesis of MgAC-Fe3O4/TiO2 hybrid nanocomposites via sol-gel chemistry for water treatment by photo-Fenton and photocatalytic reactions
- Authors
- Vu Khac Hoang Bui; Park, Duckshin; Tuyet Nhung Pham; An, Yejin; Choi, Jin Seok; Lee, Hyun-Uk; Kwon, Oh-Hyeok; Moon, Ju-Young; Kim, Ki-Tae; Lee, Young-Chul
- Issue Date
- 14-Aug-2019
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- SCIENTIFIC REPORTS, v.9
- Journal Title
- SCIENTIFIC REPORTS
- Volume
- 9
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/1109
- DOI
- 10.1038/s41598-019-48398-5
- ISSN
- 2045-2322
- Abstract
- MgAC-Fe3O4/TiO2 hybrid nanocomposites were synthesized in different ratios of MgAC-Fe3O4 and TiO2 precursor. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray fluorescence spectrometry (XRF), electron spin resonance spectrometry (ESR), Brunauer-Emmett-Teller (BET), photoluminescence (PL), and UV photoelectron spectroscopy (UPS) were used to characterize the nanocomposites. The increase of MgAC-Fe3O4, in the hybrid nanocomposites' core-shell structure, led to the decrease of anatase TiO2 peaks, thus reducing the photo-Fenton and photocatalytic activities. According to the obtained data, MgAC-Fe3O4[0.05 g]/TiO2 showed the best photo-Fenton and photocatalytic activities, having removed -93% of MB (photo-Fenton reaction) and similar to 80% of phenol (photocatalytic reaction) after 20 and 80 mins, respectively. On the pilot scale (30 L), MgAC-Fe3O4[0.05 g]/TiO2 was completely removed after 27 and 30 hours by the photo-Fenton and photocatalytic activities, respectively. The synergistic effect gained from the combined photo-Fenton and photocatalytic activities of Fe3O4 and TiO2, respectively, was credited for the performances of the MgAC-Fe3O4/TiO2 hybrid nanocomposites.
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Collections - 바이오나노대학 > 바이오나노학과 > 1. Journal Articles
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