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Hydrogen Production through Catalytic Water Splitting Using Liquid-Phase Plasma over Bismuth Ferrite Catalyst |
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| Authors: | Kyong-Hwan Chung Hyun-Hak Jung Sun-Jae Kim Young-Kwon Park Sang-Chai Kim Sang-Chul Jung |
| Affiliation: | 1.Department of Environmental Engineering, Sunchon National University, Suncheon 57922, Korea; (K.-H.C.); (H.-H.J.);2.Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Korea;3.School of Environmental Engineering, University of Seoul, Seoul 02504, Korea;4.Department of Environmental Education, Mokpo National University, Muan 58554, Korea; |
| Abstract: | This study examined the H2 production characteristics from a decomposition reaction using liquid-phase plasma with a bismuth ferrite catalyst. The catalyst was prepared using a sol–gel reaction method. The physicochemical and optical properties of bismuth ferrite were analyzed. H2 production was carried out from a distilled water and aqueous methanol solution by direct irradiation via liquid-phase plasma. The catalyst absorbed visible-light over 610 nm. The measured bandgap of the bismuth ferrite was approximately 2.0 eV. The liquid-phase plasma emitted UV and visible-light simultaneously according to optical emission spectrometry. Bismuth ferrite induced a higher H2 production rate than the TiO2 photocatalyst because it responds to both UV and visible light generated from the liquid-phase plasma. |
| Keywords: | H2 production water splitting liquid-phase plasma bismuth ferrite optical emission |