Plate-like Sm2Ti2S2O5 Particles Prepared by a Flux-Assisted One-Step Synthesis for the Evolution of O-2 from Aqueous Solutions by Both Photocatalytic and Photoelectrochemical Reactions
文献类型：期刊论文
| 作者 | Domen, Kazunari; Furube, Akihiro; Seki, Kazuhiko; Minegishi, Tsutomu; Katayama, Masao; Suzuki, Yohichi; Matsuzaki, Hiroyuki; Chen, Shanshan; Seo, Jeongsuk; Hisatomi, Takashi |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2018 |
| 卷号 | 122期号:25页码:13492-13499 |
| 关键词 | Visible-light Irradiation Water Oxidation Oxysulfide Sm2ti2s2o5 Carrier Dynamics Sunlight-driven Tio2 Reduction Hydrogen Ln(2)Ti(2)s(2)o(5) Electrodes |
| 英文摘要 | Sm2Ti2S2O5 (STSO) is a visible-light-responsive oxysulfide semiconductor photocatalyst with applications to water splitting. In this work, plate-like STSO particles were synthesized through a flux-assisted one-step method at various temperatures. The activities of these materials during photocatalytic and photoelectrochemical O-2 evolution from aqueous solutions were investigated. Single-phase STSO with a single crystal habit was produced at 923 K, which is approximately 200 K lower than the temperatures required for previously reported methods, such as solid-state reactions and thermal sulfurization under a H2S flow. The STSO sample synthesized at the optimal temperature exhibited an AQE of 1.3 +/- 0.2% at 420 nm during photocatalytic sacrificial O-2 evolution. This efficiency is twice the values reported for specimens prepared using conventional methods. An STSO/Ti/Sn electrode fabricated by the particle transfer method generated a photoanodic current and evolved O-2 by water oxidation with a Faradaic efficiency of approximately 70 +/- 7%. The synthesis temperature yielding the highest activity was lower for photocatalytic O-2 evolution than photoelectrochemical O-2 evolution. This work demonstrates the applicability for of the flux method to the synthesis of well-crystallized oxysulfides having various particle sizes and intended for different uses. |
| 学科主题 | Chemistry |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/17373]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Domen, Kazunari,Furube, Akihiro,Seki, Kazuhiko,et al. Plate-like Sm2Ti2S2O5 Particles Prepared by a Flux-Assisted One-Step Synthesis for the Evolution of O-2 from Aqueous Solutions by Both Photocatalytic and Photoelectrochemical Reactions[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(25):13492-13499. |
| APA | Domen, Kazunari.,Furube, Akihiro.,Seki, Kazuhiko.,Minegishi, Tsutomu.,Katayama, Masao.,...&Ma, Guijun.(2018).Plate-like Sm2Ti2S2O5 Particles Prepared by a Flux-Assisted One-Step Synthesis for the Evolution of O-2 from Aqueous Solutions by Both Photocatalytic and Photoelectrochemical Reactions.JOURNAL OF PHYSICAL CHEMISTRY C,122(25),13492-13499. |
| MLA | Domen, Kazunari,et al."Plate-like Sm2Ti2S2O5 Particles Prepared by a Flux-Assisted One-Step Synthesis for the Evolution of O-2 from Aqueous Solutions by Both Photocatalytic and Photoelectrochemical Reactions".JOURNAL OF PHYSICAL CHEMISTRY C 122.25(2018):13492-13499. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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